@smithy/core - npm Package Compare versions

Comparing version 3.26.0 to 3.27.0

dist-es/submodules/checksum/crc32/Crc32Js.js

+const CRC32_TABLE = new Uint32Array(256);
+for (let i = 0; i < 256; ++i) {
+    let c = i;
+    for (let j = 0; j < 8; ++j) {
+        c = c & 1 ? 0xedb88320 ^ (c >>> 1) : c >>> 1;
+    }
+    CRC32_TABLE[i] = c >>> 0;
+}
+const ONES = 0xffff_ffff;
+export class Crc32Js {
+    digestLength = 4;
+    checksum = ONES;
+    update(data) {
+        for (let i = 0; i < data.length; ++i) {
+            this.checksum = (this.checksum >>> 8) ^ CRC32_TABLE[(this.checksum ^ data[i]) & 0xff];
+        }
+    }
+    async digest() {
+        const value = (this.checksum ^ ONES) >>> 0;
+        const out = new Uint8Array(4);
+        new DataView(out.buffer).setUint32(0, value, false);
+        return out;
+    }
+    reset() {
+        this.checksum = ONES;
+    }
+}

dist-es/submodules/checksum/crc32/Crc32Node.js

+import * as zlib from "node:zlib";
+import { Crc32Js } from "./Crc32Js";
+const zlibCrc32 = typeof zlib.crc32 === "function" ? zlib.crc32 : undefined;
+export const Crc32Node = zlibCrc32 ? buildNativeClass(zlibCrc32) : Crc32Js;
+function buildNativeClass(nativeCrc32) {
+    return class Crc32Node {
+        digestLength = 4;
+        value = 0;
+        update(data) {
+            this.value = nativeCrc32(data, this.value);
+        }
+        async digest() {
+            const out = new Uint8Array(4);
+            new DataView(out.buffer).setUint32(0, this.value >>> 0, false);
+            return out;
+        }
+        reset() {
+            this.value = 0;
+        }
+    };
+}

dist-es/submodules/checksum/md5/Md5Js.js

+import { toUint8Array } from "@smithy/core/serde";
+export class Md5Js {
+    digestLength = 16;
+    state = Uint32Array.from(INIT);
+    writeBuffer = new DataView(new ArrayBuffer(64));
+    bufferLength = 0;
+    bytesHashed = 0;
+    update(sourceData) {
+        const data = toUint8Array(sourceData);
+        let pos = 0;
+        let len = data.byteLength;
+        this.bytesHashed += len;
+        while (len > 0) {
+            this.writeBuffer.setUint8(this.bufferLength++, data[pos++]);
+            --len;
+            if (this.bufferLength === 64) {
+                compress(this.state, this.writeBuffer);
+                this.bufferLength = 0;
+            }
+        }
+    }
+    async digest() {
+        const state = Uint32Array.from(this.state);
+        const buf = new DataView(this.writeBuffer.buffer.slice(0));
+        let bufLen = this.bufferLength;
+        const bits = this.bytesHashed * 8;
+        buf.setUint8(bufLen++, 0x80);
+        if (this.bufferLength % 64 >= 56) {
+            for (let i = bufLen; i < 64; ++i) {
+                buf.setUint8(i, 0);
+            }
+            compress(state, buf);
+            bufLen = 0;
+        }
+        for (let i = bufLen; i < 56; ++i) {
+            buf.setUint8(i, 0);
+        }
+        buf.setUint32(56, bits >>> 0, true);
+        buf.setUint32(60, Math.floor(bits / 2 ** 32), true);
+        compress(state, buf);
+        const out = new Uint8Array(16);
+        const view = new DataView(out.buffer);
+        for (let i = 0; i < 4; ++i) {
+            view.setUint32(i * 4, state[i], true);
+        }
+        return out;
+    }
+    reset() {
+        this.state.set(INIT);
+        this.writeBuffer = new DataView(new ArrayBuffer(64));
+        this.bufferLength = 0;
+        this.bytesHashed = 0;
+    }
+}
+const INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+const M = 0xffffffff;
+const S = Uint8Array.of(7, 12, 17, 22, 5, 9, 14, 20, 4, 11, 16, 23, 6, 10, 15, 21);
+const T = Array.from({ length: 64 }, (_, i) => (Math.abs(Math.sin(i + 1)) * 2 ** 32) >>> 0);
+function compress(state, block) {
+    let a = state[0], b = state[1], c = state[2], d = state[3];
+    for (let i = 0; i < 64; ++i) {
+        let f, g;
+        if (i < 16) {
+            f = (b & c) | (~b & d);
+            g = i;
+        }
+        else if (i < 32) {
+            f = (d & b) | (c & ~d);
+            g = (5 * i + 1) % 16;
+        }
+        else if (i < 48) {
+            f = b ^ c ^ d;
+            g = (3 * i + 5) % 16;
+        }
+        else {
+            f = c ^ (b | ~d);
+            g = (7 * i) % 16;
+        }
+        const x = block.getUint32(g * 4, true);
+        const tmp = d;
+        d = c;
+        c = b;
+        const s = S[(i >> 4) * 4 + (i & 3)];
+        const sum = (((a + f) & M) + ((x + T[i]) & M)) & M;
+        b = (b + (((sum << s) | (sum >>> (32 - s))) >>> 0)) & M;
+        a = tmp;
+    }
+    state[0] = (state[0] + a) & M;
+    state[1] = (state[1] + b) & M;
+    state[2] = (state[2] + c) & M;
+    state[3] = (state[3] + d) & M;
+}

dist-es/submodules/checksum/md5/Md5Node.js

+import { createHash } from "node:crypto";
+import { toUint8Array } from "@smithy/core/serde";
+import { Md5Js } from "./Md5Js";
+const hasNativeCrypto = (() => {
+    try {
+        createHash("md5");
+        return true;
+    }
+    catch {
+        return false;
+    }
+})();
+export const Md5Node = hasNativeCrypto ? buildNativeClass() : Md5Js;
+function buildNativeClass() {
+    return class Md5Node {
+        digestLength = 16;
+        hash = createHash("md5");
+        update(data) {
+            this.hash.update(toUint8Array(data));
+        }
+        async digest() {
+            const buf = this.hash.copy().digest();
+            return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
+        }
+        reset() {
+            this.hash = createHash("md5");
+        }
+    };
+}

dist-es/submodules/checksum/sha256/Sha256Js.js

+import { toUint8Array } from "@smithy/core/serde";
+const BLOCK = 64;
+const DIGEST_LENGTH = 32;
+const MAX_HASHABLE_LENGTH = 2 ** 53 - 1;
+export class Sha256Js {
+    digestLength = DIGEST_LENGTH;
+    state = Int32Array.from(INIT);
+    w;
+    buffer = new Uint8Array(64);
+    bufferLength = 0;
+    bytesHashed = 0;
+    finished = false;
+    inner;
+    outer;
+    constructor(secret) {
+        if (secret) {
+            const key = Sha256Js.normalizeKey(secret);
+            this.inner = new Sha256Js();
+            this.outer = new Sha256Js();
+            const { inner, outer } = this;
+            const pad = new Uint8Array(BLOCK * 2);
+            for (let i = 0; i < BLOCK; ++i) {
+                pad[i] = 0x36 ^ key[i];
+                pad[i + BLOCK] = 0x5c ^ key[i];
+            }
+            inner.update(pad.subarray(0, BLOCK));
+            outer.update(pad.subarray(BLOCK));
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.inner) {
+            this.inner.update(data);
+            return;
+        }
+        const chunk = toUint8Array(data);
+        let position = 0;
+        let { byteLength } = chunk;
+        this.bytesHashed += byteLength;
+        if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {
+            throw new Error("Cannot hash more than 2^53 - 1 bits");
+        }
+        while (byteLength > 0) {
+            this.buffer[this.bufferLength++] = chunk[position++];
+            byteLength--;
+            if (this.bufferLength === BLOCK) {
+                this.hashBuffer();
+                this.bufferLength = 0;
+            }
+        }
+    }
+    async digest() {
+        const { inner, outer } = this;
+        if (inner && outer) {
+            if (this.finished) {
+                throw new Error("Attempted to digest an already finished HMAC.");
+            }
+            this.finished = true;
+            const innerDigest = inner.digestSync();
+            outer.update(innerDigest);
+            return outer.digestSync();
+        }
+        return this.digestSync();
+    }
+    reset() {
+        this.state = Int32Array.from(INIT);
+        this.buffer = new Uint8Array(64);
+        this.bufferLength = 0;
+        this.bytesHashed = 0;
+    }
+    digestSync() {
+        const state = this.state.slice();
+        const buffer = this.buffer.slice();
+        let bufferLength = this.bufferLength;
+        const bitsHashed = this.bytesHashed * 8;
+        const bufferView = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+        bufferView.setUint8(bufferLength++, 0x80);
+        if ((bufferLength - 1) % BLOCK >= BLOCK - 8) {
+            for (let i = bufferLength; i < BLOCK; ++i) {
+                bufferView.setUint8(i, 0);
+            }
+            this.hashBufferWith(state, buffer);
+            bufferLength = 0;
+        }
+        for (let i = bufferLength; i < BLOCK - 8; ++i) {
+            bufferView.setUint8(i, 0);
+        }
+        bufferView.setUint32(BLOCK - 8, Math.floor(bitsHashed / 0x100000000), false);
+        bufferView.setUint32(BLOCK - 4, bitsHashed, false);
+        this.hashBufferWith(state, buffer);
+        const out = new Uint8Array(DIGEST_LENGTH);
+        for (let i = 0; i < 8; ++i) {
+            out[i * 4] = (state[i] >>> 24) & 0xff;
+            out[i * 4 + 1] = (state[i] >>> 16) & 0xff;
+            out[i * 4 + 2] = (state[i] >>> 8) & 0xff;
+            out[i * 4 + 3] = (state[i] >>> 0) & 0xff;
+        }
+        return out;
+    }
+    static normalizeKey(secret) {
+        const key = toUint8Array(secret);
+        if (key.byteLength > BLOCK) {
+            const h = new Sha256Js();
+            h.update(key);
+            const out = h.digestSync();
+            const padded = new Uint8Array(BLOCK);
+            padded.set(out);
+            return padded;
+        }
+        if (key.byteLength < BLOCK) {
+            const padded = new Uint8Array(BLOCK);
+            padded.set(key);
+            return padded;
+        }
+        return key;
+    }
+    hashBuffer() {
+        this.hashBufferWith(this.state, this.buffer);
+    }
+    hashBufferWith(state, buffer) {
+        const w = (this.w ??= new Int32Array(64));
+        let s0 = state[0], s1 = state[1], s2 = state[2], s3 = state[3], s4 = state[4], s5 = state[5], s6 = state[6], s7 = state[7];
+        for (let i = 0; i < BLOCK; ++i) {
+            if (i < 16) {
+                w[i] =
+                    ((buffer[i * 4] & 0xff) << 24) |
+                        ((buffer[i * 4 + 1] & 0xff) << 16) |
+                        ((buffer[i * 4 + 2] & 0xff) << 8) |
+                        (buffer[i * 4 + 3] & 0xff);
+            }
+            else {
+                let u = w[i - 2];
+                const t1 = ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10);
+                u = w[i - 15];
+                const t2 = ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3);
+                w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0);
+            }
+            const t1 = ((((((s4 >>> 6) | (s4 << 26)) ^ ((s4 >>> 11) | (s4 << 21)) ^ ((s4 >>> 25) | (s4 << 7))) +
+                ((s4 & s5) ^ (~s4 & s6))) |
+                0) +
+                ((s7 + ((K[i] + w[i]) | 0)) | 0)) |
+                0;
+            const t2 = ((((s0 >>> 2) | (s0 << 30)) ^ ((s0 >>> 13) | (s0 << 19)) ^ ((s0 >>> 22) | (s0 << 10))) +
+                ((s0 & s1) ^ (s0 & s2) ^ (s1 & s2))) |
+                0;
+            s7 = s6;
+            s6 = s5;
+            s5 = s4;
+            s4 = (s3 + t1) | 0;
+            s3 = s2;
+            s2 = s1;
+            s1 = s0;
+            s0 = (t1 + t2) | 0;
+        }
+        state[0] += s0;
+        state[1] += s1;
+        state[2] += s2;
+        state[3] += s3;
+        state[4] += s4;
+        state[5] += s5;
+        state[6] += s6;
+        state[7] += s7;
+    }
+}
+const INIT = new Int32Array([
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
+]);
+const K = new Int32Array([
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+]);

dist-es/submodules/checksum/sha256/Sha256Node.js

+import { createHash, createHmac } from "node:crypto";
+import { Sha256Js } from "./Sha256Js";
+const hasNativeCrypto = (() => {
+    try {
+        createHash("sha256");
+        return true;
+    }
+    catch {
+        return false;
+    }
+})();
+export const Sha256Node = hasNativeCrypto ? buildNativeClass() : Sha256Js;
+function buildNativeClass() {
+    return class Sha256Node {
+        digestLength = 32;
+        secret;
+        hash;
+        isHmac;
+        finished = false;
+        constructor(secret) {
+            this.secret = secret;
+            this.isHmac = !!secret;
+            this.hash = this.createHash();
+        }
+        update(data) {
+            if (this.finished) {
+                throw new Error("Attempted to update an already finished hash.");
+            }
+            this.hash.update(data);
+        }
+        async digest() {
+            let buf;
+            if (this.isHmac) {
+                this.finished = true;
+                buf = this.hash.digest();
+            }
+            else {
+                buf = this.hash.copy().digest();
+            }
+            return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
+        }
+        reset() {
+            this.hash = this.createHash();
+            this.finished = false;
+        }
+        createHash() {
+            return this.secret ? createHmac("sha256", toBuffer(this.secret)) : createHash("sha256");
+        }
+    };
+}
+function toBuffer(data) {
+    if (typeof data === "string") {
+        return data;
+    }
+    if (ArrayBuffer.isView(data)) {
+        return Buffer.from(data.buffer, data.byteOffset, data.byteLength);
+    }
+    return Buffer.from(data);
+}

dist-es/submodules/checksum/sha256/Sha256WebCrypto.js

+import { concatBytes, toUint8Array } from "@smithy/core/serde";
+import { Sha256Js } from "./Sha256Js";
+const { digest, sign, importKey } = globalThis?.crypto?.subtle ?? {};
+const subtle = typeof digest === "function" && typeof sign === "function" && typeof importKey === "function"
+    ? globalThis.crypto.subtle
+    : undefined;
+const MAX_PENDING_BYTES = 8 * 1024 * 1024;
+export class Sha256WebCrypto {
+    digestLength = 32;
+    secret;
+    pending = [];
+    pendingBytes = 0;
+    fallback;
+    finished = false;
+    constructor(secret) {
+        if (secret) {
+            this.secret = toUint8Array(secret);
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.fallback) {
+            this.fallback.update(data);
+            return;
+        }
+        this.pending.push(data.slice());
+        this.pendingBytes += data.byteLength;
+        if (this.pendingBytes >= MAX_PENDING_BYTES) {
+            this.switchToFallback();
+        }
+    }
+    async digest() {
+        if (this.fallback) {
+            return this.fallback.digest();
+        }
+        if (this.secret && this.finished) {
+            throw new Error("Attempted to digest an already finished HMAC.");
+        }
+        const data = concatBytes(this.pending);
+        if (subtle) {
+            if (this.secret) {
+                this.finished = true;
+                const key = await subtle.importKey("raw", this.secret, { name: "HMAC", hash: "SHA-256" }, false, ["sign"]);
+                const sig = await subtle.sign("HMAC", key, data);
+                return new Uint8Array(sig);
+            }
+            const hash = await subtle.digest("SHA-256", data);
+            return new Uint8Array(hash);
+        }
+        const sha256 = new Sha256Js(this.secret);
+        sha256.update(data);
+        return sha256.digest();
+    }
+    reset() {
+        this.pending = [];
+        this.pendingBytes = 0;
+        this.fallback = undefined;
+        this.finished = false;
+    }
+    switchToFallback() {
+        const sha256Js = new Sha256Js(this.secret);
+        for (const chunk of this.pending) {
+            sha256Js.update(chunk);
+        }
+        this.fallback = sha256Js;
+        this.pending = [];
+        this.pendingBytes = 0;
+    }
+}

dist-es/submodules/serde/concatBytes.js

+export function concatBytes(arrays, length) {
+    if (length === undefined) {
+        length = 0;
+        for (const bytes of arrays) {
+            length += bytes.byteLength;
+        }
+    }
+    const result = new Uint8Array(length);
+    let offset = 0;
+    for (const buf of arrays) {
+        result.set(buf, offset);
+        offset += buf.byteLength;
+    }
+    return result;
+}

dist-types/submodules/checksum/crc32/Crc32Js.d.ts

+import type { Checksum } from "@smithy/types";
+/**
+ * Pure JS CRC-32 implementation using the IEEE 802.3 polynomial.
+ * @see https://www.w3.org/TR/png/#D-CRCAppendix
+ * @public
+ */
+export declare class Crc32Js implements Checksum {
+    readonly digestLength = 4;
+    private checksum;
+    update(data: Uint8Array): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}

dist-types/submodules/checksum/crc32/Crc32Node.d.ts

+import type { Checksum } from "@smithy/types";
+/**
+ * CRC-32 using Node.js zlib native implementation when available,
+ * falling back to the pure JS implementation.
+ * @public
+ */
+export interface Crc32Node extends Checksum {
+    readonly digestLength: 4;
+}
+/**
+ * @public
+ */
+export declare const Crc32Node: new () => Crc32Node;

dist-types/submodules/checksum/md5/Md5Js.d.ts

+import type { Checksum, SourceData } from "@smithy/types";
+/**
+ * Pure-JS MD5 implementation. Used as fallback where node:crypto is unavailable.
+ *
+ * @public
+ */
+export declare class Md5Js implements Checksum {
+    readonly digestLength = 16;
+    private state;
+    private writeBuffer;
+    private bufferLength;
+    private bytesHashed;
+    update(sourceData: SourceData): void;
+    /**
+     * Non-destructive: works on copies so update() may continue after digest().
+     */
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}

dist-types/submodules/checksum/md5/Md5Node.d.ts

+import type { Checksum, SourceData } from "@smithy/types";
+/**
+ * MD5 using Node.js crypto native implementation when available,
+ * falling back to the pure JS implementation.
+ * @public
+ */
+export interface Md5Node extends Checksum {
+    readonly digestLength: 16;
+    /**
+     * @override
+     */
+    update(data: SourceData): void;
+}
+/**
+ * @public
+ */
+export declare const Md5Node: new () => Md5Node;

dist-types/submodules/checksum/sha256/Sha256Js.d.ts

+import type { Checksum, SourceData } from "@smithy/types";
+/**
+ * Pure JS SHA-256 implementation with HMAC support.
+ * @see https://csrc.nist.gov/pubs/fips/180-4/upd1/final
+ * @public
+ */
+export declare class Sha256Js implements Checksum {
+    readonly digestLength = 32;
+    /** Eight 32-bit words representing the current hash state. */
+    private state;
+    /** Reused message schedule array (W), allocated on first use of hashBuffer. */
+    private w?;
+    /** Accumulates input bytes until a full 64-byte block is ready. */
+    private buffer;
+    private bufferLength;
+    private bytesHashed;
+    private finished;
+    private readonly inner?;
+    private readonly outer?;
+    constructor(secret?: SourceData);
+    update(data: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+    private digestSync;
+    private static normalizeKey;
+    private hashBuffer;
+    private hashBufferWith;
+}

dist-types/submodules/checksum/sha256/Sha256Node.d.ts

+import type { Checksum, SourceData } from "@smithy/types";
+/**
+ * SHA-256 using Node.js crypto native implementation when available,
+ * falling back to the pure JS implementation.
+ * @public
+ */
+export interface Sha256Node extends Checksum {
+    readonly digestLength: 32;
+}
+/**
+ * @public
+ */
+export declare const Sha256Node: new (secret?: SourceData) => Sha256Node;

dist-types/submodules/checksum/sha256/Sha256WebCrypto.d.ts

+import type { Checksum, SourceData } from "@smithy/types";
+/**
+ * SHA-256 using the Web Crypto API (crypto.subtle) when available,
+ * falling back to the pure JS implementation.
+ *
+ * Caution: this implementation is forced to buffer the data entirely.
+ * Use the pure-JS or Sha256Node implementations for large streaming data.
+ * @public
+ */
+export declare class Sha256WebCrypto implements Checksum {
+    readonly digestLength: 32;
+    private readonly secret?;
+    private pending;
+    private pendingBytes;
+    private fallback?;
+    private finished;
+    constructor(secret?: SourceData);
+    update(data: Uint8Array): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+    private switchToFallback;
+}

dist-types/submodules/serde/concatBytes.d.ts

+/**
+ * This deliberately avoids differentiating to Buffer.concat in Node.js in favor of being isomorphic.
+ * This implementation pattern is highly recognizable/optimizable by JS engines.
+ * @internal
+ */
+export declare function concatBytes(arrays: Uint8Array[], length?: number): Uint8Array;

dist-cjs/submodules/checksum/index.browser.js

@@ -1,2 +0,2 @@
-const { fromUtf8 } = require("@smithy/core/serde");
+const { toUint8Array, concatBytes } = require("@smithy/core/serde");
 
@@ -21,30 +21,169 @@ async function blobReader(blob, onChunk, chunkSize = 1024 * 1024) {
 
-const BLOCK_SIZE = 64;
-const DIGEST_LENGTH = 16;
-const INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+class Md5Js {
+    digestLength = 16;
+    state = Uint32Array.from(INIT$1);
+    writeBuffer = new DataView(new ArrayBuffer(64));
+    bufferLength = 0;
+    bytesHashed = 0;
+    update(sourceData) {
+        const data = toUint8Array(sourceData);
+        let pos = 0;
+        let len = data.byteLength;
+        this.bytesHashed += len;
+        while (len > 0) {
+            this.writeBuffer.setUint8(this.bufferLength++, data[pos++]);
+            --len;
+            if (this.bufferLength === 64) {
+                compress(this.state, this.writeBuffer);
+                this.bufferLength = 0;
+            }
+        }
+    }
+    async digest() {
+        const state = Uint32Array.from(this.state);
+        const buf = new DataView(this.writeBuffer.buffer.slice(0));
+        let bufLen = this.bufferLength;
+        const bits = this.bytesHashed * 8;
+        buf.setUint8(bufLen++, 0x80);
+        if (this.bufferLength % 64 >= 56) {
+            for (let i = bufLen; i < 64; ++i) {
+                buf.setUint8(i, 0);
+            }
+            compress(state, buf);
+            bufLen = 0;
+        }
+        for (let i = bufLen; i < 56; ++i) {
+            buf.setUint8(i, 0);
+        }
+        buf.setUint32(56, bits >>> 0, true);
+        buf.setUint32(60, Math.floor(bits / 2 ** 32), true);
+        compress(state, buf);
+        const out = new Uint8Array(16);
+        const view = new DataView(out.buffer);
+        for (let i = 0; i < 4; ++i) {
+            view.setUint32(i * 4, state[i], true);
+        }
+        return out;
+    }
+    reset() {
+        this.state.set(INIT$1);
+        this.writeBuffer = new DataView(new ArrayBuffer(64));
+        this.bufferLength = 0;
+        this.bytesHashed = 0;
+    }
+}
+const INIT$1 = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+const M = 0xffffffff;
+const S = Uint8Array.of(7, 12, 17, 22, 5, 9, 14, 20, 4, 11, 16, 23, 6, 10, 15, 21);
+const T = Array.from({ length: 64 }, (_, i) => (Math.abs(Math.sin(i + 1)) * 2 ** 32) >>> 0);
+function compress(state, block) {
+    let a = state[0], b = state[1], c = state[2], d = state[3];
+    for (let i = 0; i < 64; ++i) {
+        let f, g;
+        if (i < 16) {
+            f = (b & c) | (~b & d);
+            g = i;
+        }
+        else if (i < 32) {
+            f = (d & b) | (c & ~d);
+            g = (5 * i + 1) % 16;
+        }
+        else if (i < 48) {
+            f = b ^ c ^ d;
+            g = (3 * i + 5) % 16;
+        }
+        else {
+            f = c ^ (b | ~d);
+            g = (7 * i) % 16;
+        }
+        const x = block.getUint32(g * 4, true);
+        const tmp = d;
+        d = c;
+        c = b;
+        const s = S[(i >> 4) * 4 + (i & 3)];
+        const sum = (((a + f) & M) + ((x + T[i]) & M)) & M;
+        b = (b + (((sum << s) | (sum >>> (32 - s))) >>> 0)) & M;
+        a = tmp;
+    }
+    state[0] = (state[0] + a) & M;
+    state[1] = (state[1] + b) & M;
+    state[2] = (state[2] + c) & M;
+    state[3] = (state[3] + d) & M;
+}
 
-class Md5 {
-    state;
-    buffer;
-    bufferLength;
-    bytesHashed;
-    finished;
-    constructor() {
-        this.reset();
+const CRC32_TABLE = new Uint32Array(256);
+for (let i = 0; i < 256; ++i) {
+    let c = i;
+    for (let j = 0; j < 8; ++j) {
+        c = c & 1 ? 0xedb88320 ^ (c >>> 1) : c >>> 1;
     }
-    update(sourceData) {
-        if (isEmptyData(sourceData)) {
+    CRC32_TABLE[i] = c >>> 0;
+}
+const ONES = 0xffff_ffff;
+class Crc32Js {
+    digestLength = 4;
+    checksum = ONES;
+    update(data) {
+        for (let i = 0; i < data.length; ++i) {
+            this.checksum = (this.checksum >>> 8) ^ CRC32_TABLE[(this.checksum ^ data[i]) & 0xff];
+        }
+    }
+    async digest() {
+        const value = (this.checksum ^ ONES) >>> 0;
+        const out = new Uint8Array(4);
+        new DataView(out.buffer).setUint32(0, value, false);
+        return out;
+    }
+    reset() {
+        this.checksum = ONES;
+    }
+}
+
+const BLOCK = 64;
+const DIGEST_LENGTH = 32;
+const MAX_HASHABLE_LENGTH = 2 ** 53 - 1;
+class Sha256Js {
+    digestLength = DIGEST_LENGTH;
+    state = Int32Array.from(INIT);
+    w;
+    buffer = new Uint8Array(64);
+    bufferLength = 0;
+    bytesHashed = 0;
+    finished = false;
+    inner;
+    outer;
+    constructor(secret) {
+        if (secret) {
+            const key = Sha256Js.normalizeKey(secret);
+            this.inner = new Sha256Js();
+            this.outer = new Sha256Js();
+            const { inner, outer } = this;
+            const pad = new Uint8Array(BLOCK * 2);
+            for (let i = 0; i < BLOCK; ++i) {
+                pad[i] = 0x36 ^ key[i];
+                pad[i + BLOCK] = 0x5c ^ key[i];
+            }
+            inner.update(pad.subarray(0, BLOCK));
+            outer.update(pad.subarray(BLOCK));
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.inner) {
+            this.inner.update(data);
             return;
         }
-        else if (this.finished) {
-            throw new Error("Attempted to update an already finished hash.");
-        }
-        const data = convertToBuffer(sourceData);
+        const chunk = toUint8Array(data);
         let position = 0;
-        let { byteLength } = data;
+        let { byteLength } = chunk;
         this.bytesHashed += byteLength;
+        if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {
+            throw new Error("Cannot hash more than 2^53 - 1 bits");
+        }
         while (byteLength > 0) {
-            this.buffer.setUint8(this.bufferLength++, data[position++]);
+            this.buffer[this.bufferLength++] = chunk[position++];
             byteLength--;
-            if (this.bufferLength === BLOCK_SIZE) {
+            if (this.bufferLength === BLOCK) {
                 this.hashBuffer();
@@ -56,137 +195,196 @@ this.bufferLength = 0;
     async digest() {
-        if (!this.finished) {
-            const { buffer, bufferLength: undecoratedLength, bytesHashed } = this;
-            const bitsHashed = bytesHashed * 8;
-            buffer.setUint8(this.bufferLength++, 0b10000000);
-            if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {
-                for (let i = this.bufferLength; i < BLOCK_SIZE; i++) {
-                    buffer.setUint8(i, 0);
-                }
-                this.hashBuffer();
-                this.bufferLength = 0;
+        const { inner, outer } = this;
+        if (inner && outer) {
+            if (this.finished) {
+                throw new Error("Attempted to digest an already finished HMAC.");
             }
-            for (let i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {
-                buffer.setUint8(i, 0);
-            }
-            buffer.setUint32(BLOCK_SIZE - 8, bitsHashed >>> 0, true);
-            buffer.setUint32(BLOCK_SIZE - 4, Math.floor(bitsHashed / 0x100000000), true);
-            this.hashBuffer();
             this.finished = true;
+            const innerDigest = inner.digestSync();
+            outer.update(innerDigest);
+            return outer.digestSync();
         }
-        const out = new DataView(new ArrayBuffer(DIGEST_LENGTH));
-        for (let i = 0; i < 4; i++) {
-            out.setUint32(i * 4, this.state[i], true);
-        }
-        return new Uint8Array(out.buffer, out.byteOffset, out.byteLength);
+        return this.digestSync();
     }
-    hashBuffer() {
-        const { buffer, state } = this;
-        let a = state[0], b = state[1], c = state[2], d = state[3];
-        a = ff(a, b, c, d, buffer.getUint32(0, true), 7, 0xd76aa478);
-        d = ff(d, a, b, c, buffer.getUint32(4, true), 12, 0xe8c7b756);
-        c = ff(c, d, a, b, buffer.getUint32(8, true), 17, 0x242070db);
-        b = ff(b, c, d, a, buffer.getUint32(12, true), 22, 0xc1bdceee);
-        a = ff(a, b, c, d, buffer.getUint32(16, true), 7, 0xf57c0faf);
-        d = ff(d, a, b, c, buffer.getUint32(20, true), 12, 0x4787c62a);
-        c = ff(c, d, a, b, buffer.getUint32(24, true), 17, 0xa8304613);
-        b = ff(b, c, d, a, buffer.getUint32(28, true), 22, 0xfd469501);
-        a = ff(a, b, c, d, buffer.getUint32(32, true), 7, 0x698098d8);
-        d = ff(d, a, b, c, buffer.getUint32(36, true), 12, 0x8b44f7af);
-        c = ff(c, d, a, b, buffer.getUint32(40, true), 17, 0xffff5bb1);
-        b = ff(b, c, d, a, buffer.getUint32(44, true), 22, 0x895cd7be);
-        a = ff(a, b, c, d, buffer.getUint32(48, true), 7, 0x6b901122);
-        d = ff(d, a, b, c, buffer.getUint32(52, true), 12, 0xfd987193);
-        c = ff(c, d, a, b, buffer.getUint32(56, true), 17, 0xa679438e);
-        b = ff(b, c, d, a, buffer.getUint32(60, true), 22, 0x49b40821);
-        a = gg(a, b, c, d, buffer.getUint32(4, true), 5, 0xf61e2562);
-        d = gg(d, a, b, c, buffer.getUint32(24, true), 9, 0xc040b340);
-        c = gg(c, d, a, b, buffer.getUint32(44, true), 14, 0x265e5a51);
-        b = gg(b, c, d, a, buffer.getUint32(0, true), 20, 0xe9b6c7aa);
-        a = gg(a, b, c, d, buffer.getUint32(20, true), 5, 0xd62f105d);
-        d = gg(d, a, b, c, buffer.getUint32(40, true), 9, 0x02441453);
-        c = gg(c, d, a, b, buffer.getUint32(60, true), 14, 0xd8a1e681);
-        b = gg(b, c, d, a, buffer.getUint32(16, true), 20, 0xe7d3fbc8);
-        a = gg(a, b, c, d, buffer.getUint32(36, true), 5, 0x21e1cde6);
-        d = gg(d, a, b, c, buffer.getUint32(56, true), 9, 0xc33707d6);
-        c = gg(c, d, a, b, buffer.getUint32(12, true), 14, 0xf4d50d87);
-        b = gg(b, c, d, a, buffer.getUint32(32, true), 20, 0x455a14ed);
-        a = gg(a, b, c, d, buffer.getUint32(52, true), 5, 0xa9e3e905);
-        d = gg(d, a, b, c, buffer.getUint32(8, true), 9, 0xfcefa3f8);
-        c = gg(c, d, a, b, buffer.getUint32(28, true), 14, 0x676f02d9);
-        b = gg(b, c, d, a, buffer.getUint32(48, true), 20, 0x8d2a4c8a);
-        a = hh(a, b, c, d, buffer.getUint32(20, true), 4, 0xfffa3942);
-        d = hh(d, a, b, c, buffer.getUint32(32, true), 11, 0x8771f681);
-        c = hh(c, d, a, b, buffer.getUint32(44, true), 16, 0x6d9d6122);
-        b = hh(b, c, d, a, buffer.getUint32(56, true), 23, 0xfde5380c);
-        a = hh(a, b, c, d, buffer.getUint32(4, true), 4, 0xa4beea44);
-        d = hh(d, a, b, c, buffer.getUint32(16, true), 11, 0x4bdecfa9);
-        c = hh(c, d, a, b, buffer.getUint32(28, true), 16, 0xf6bb4b60);
-        b = hh(b, c, d, a, buffer.getUint32(40, true), 23, 0xbebfbc70);
-        a = hh(a, b, c, d, buffer.getUint32(52, true), 4, 0x289b7ec6);
-        d = hh(d, a, b, c, buffer.getUint32(0, true), 11, 0xeaa127fa);
-        c = hh(c, d, a, b, buffer.getUint32(12, true), 16, 0xd4ef3085);
-        b = hh(b, c, d, a, buffer.getUint32(24, true), 23, 0x04881d05);
-        a = hh(a, b, c, d, buffer.getUint32(36, true), 4, 0xd9d4d039);
-        d = hh(d, a, b, c, buffer.getUint32(48, true), 11, 0xe6db99e5);
-        c = hh(c, d, a, b, buffer.getUint32(60, true), 16, 0x1fa27cf8);
-        b = hh(b, c, d, a, buffer.getUint32(8, true), 23, 0xc4ac5665);
-        a = ii(a, b, c, d, buffer.getUint32(0, true), 6, 0xf4292244);
-        d = ii(d, a, b, c, buffer.getUint32(28, true), 10, 0x432aff97);
-        c = ii(c, d, a, b, buffer.getUint32(56, true), 15, 0xab9423a7);
-        b = ii(b, c, d, a, buffer.getUint32(20, true), 21, 0xfc93a039);
-        a = ii(a, b, c, d, buffer.getUint32(48, true), 6, 0x655b59c3);
-        d = ii(d, a, b, c, buffer.getUint32(12, true), 10, 0x8f0ccc92);
-        c = ii(c, d, a, b, buffer.getUint32(40, true), 15, 0xffeff47d);
-        b = ii(b, c, d, a, buffer.getUint32(4, true), 21, 0x85845dd1);
-        a = ii(a, b, c, d, buffer.getUint32(32, true), 6, 0x6fa87e4f);
-        d = ii(d, a, b, c, buffer.getUint32(60, true), 10, 0xfe2ce6e0);
-        c = ii(c, d, a, b, buffer.getUint32(24, true), 15, 0xa3014314);
-        b = ii(b, c, d, a, buffer.getUint32(52, true), 21, 0x4e0811a1);
-        a = ii(a, b, c, d, buffer.getUint32(16, true), 6, 0xf7537e82);
-        d = ii(d, a, b, c, buffer.getUint32(44, true), 10, 0xbd3af235);
-        c = ii(c, d, a, b, buffer.getUint32(8, true), 15, 0x2ad7d2bb);
-        b = ii(b, c, d, a, buffer.getUint32(36, true), 21, 0xeb86d391);
-        state[0] = (a + state[0]) & 0xffffffff;
-        state[1] = (b + state[1]) & 0xffffffff;
-        state[2] = (c + state[2]) & 0xffffffff;
-        state[3] = (d + state[3]) & 0xffffffff;
-    }
     reset() {
-        this.state = Uint32Array.from(INIT);
-        this.buffer = new DataView(new ArrayBuffer(BLOCK_SIZE));
+        this.state = Int32Array.from(INIT);
+        this.buffer = new Uint8Array(64);
         this.bufferLength = 0;
         this.bytesHashed = 0;
-        this.finished = false;
     }
-}
-function cmn(q, a, b, x, s, t) {
-    a = (((a + q) & 0xffffffff) + ((x + t) & 0xffffffff)) & 0xffffffff;
-    return (((a << s) | (a >>> (32 - s))) + b) & 0xffffffff;
-}
-function ff(a, b, c, d, x, s, t) {
-    return cmn((b & c) | (~b & d), a, b, x, s, t);
-}
-function gg(a, b, c, d, x, s, t) {
-    return cmn((b & d) | (c & ~d), a, b, x, s, t);
-}
-function hh(a, b, c, d, x, s, t) {
-    return cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function ii(a, b, c, d, x, s, t) {
-    return cmn(c ^ (b | ~d), a, b, x, s, t);
-}
-function isEmptyData(data) {
-    if (typeof data === "string") {
-        return data.length === 0;
+    digestSync() {
+        const state = this.state.slice();
+        const buffer = this.buffer.slice();
+        let bufferLength = this.bufferLength;
+        const bitsHashed = this.bytesHashed * 8;
+        const bufferView = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+        bufferView.setUint8(bufferLength++, 0x80);
+        if ((bufferLength - 1) % BLOCK >= BLOCK - 8) {
+            for (let i = bufferLength; i < BLOCK; ++i) {
+                bufferView.setUint8(i, 0);
+            }
+            this.hashBufferWith(state, buffer);
+            bufferLength = 0;
+        }
+        for (let i = bufferLength; i < BLOCK - 8; ++i) {
+            bufferView.setUint8(i, 0);
+        }
+        bufferView.setUint32(BLOCK - 8, Math.floor(bitsHashed / 0x100000000), false);
+        bufferView.setUint32(BLOCK - 4, bitsHashed, false);
+        this.hashBufferWith(state, buffer);
+        const out = new Uint8Array(DIGEST_LENGTH);
+        for (let i = 0; i < 8; ++i) {
+            out[i * 4] = (state[i] >>> 24) & 0xff;
+            out[i * 4 + 1] = (state[i] >>> 16) & 0xff;
+            out[i * 4 + 2] = (state[i] >>> 8) & 0xff;
+            out[i * 4 + 3] = (state[i] >>> 0) & 0xff;
+        }
+        return out;
     }
-    return data.byteLength === 0;
+    static normalizeKey(secret) {
+        const key = toUint8Array(secret);
+        if (key.byteLength > BLOCK) {
+            const h = new Sha256Js();
+            h.update(key);
+            const out = h.digestSync();
+            const padded = new Uint8Array(BLOCK);
+            padded.set(out);
+            return padded;
+        }
+        if (key.byteLength < BLOCK) {
+            const padded = new Uint8Array(BLOCK);
+            padded.set(key);
+            return padded;
+        }
+        return key;
+    }
+    hashBuffer() {
+        this.hashBufferWith(this.state, this.buffer);
+    }
+    hashBufferWith(state, buffer) {
+        const w = (this.w ??= new Int32Array(64));
+        let s0 = state[0], s1 = state[1], s2 = state[2], s3 = state[3], s4 = state[4], s5 = state[5], s6 = state[6], s7 = state[7];
+        for (let i = 0; i < BLOCK; ++i) {
+            if (i < 16) {
+                w[i] =
+                    ((buffer[i * 4] & 0xff) << 24) |
+                        ((buffer[i * 4 + 1] & 0xff) << 16) |
+                        ((buffer[i * 4 + 2] & 0xff) << 8) |
+                        (buffer[i * 4 + 3] & 0xff);
+            }
+            else {
+                let u = w[i - 2];
+                const t1 = ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10);
+                u = w[i - 15];
+                const t2 = ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3);
+                w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0);
+            }
+            const t1 = ((((((s4 >>> 6) | (s4 << 26)) ^ ((s4 >>> 11) | (s4 << 21)) ^ ((s4 >>> 25) | (s4 << 7))) +
+                ((s4 & s5) ^ (~s4 & s6))) |
+                0) +
+                ((s7 + ((K[i] + w[i]) | 0)) | 0)) |
+                0;
+            const t2 = ((((s0 >>> 2) | (s0 << 30)) ^ ((s0 >>> 13) | (s0 << 19)) ^ ((s0 >>> 22) | (s0 << 10))) +
+                ((s0 & s1) ^ (s0 & s2) ^ (s1 & s2))) |
+                0;
+            s7 = s6;
+            s6 = s5;
+            s5 = s4;
+            s4 = (s3 + t1) | 0;
+            s3 = s2;
+            s2 = s1;
+            s1 = s0;
+            s0 = (t1 + t2) | 0;
+        }
+        state[0] += s0;
+        state[1] += s1;
+        state[2] += s2;
+        state[3] += s3;
+        state[4] += s4;
+        state[5] += s5;
+        state[6] += s6;
+        state[7] += s7;
+    }
 }
-function convertToBuffer(data) {
-    if (typeof data === "string") {
-        return fromUtf8(data);
+const INIT = new Int32Array([
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
+]);
+const K = new Int32Array([
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+]);
+
+const { digest, sign, importKey } = globalThis?.crypto?.subtle ?? {};
+const subtle = typeof digest === "function" && typeof sign === "function" && typeof importKey === "function"
+    ? globalThis.crypto.subtle
+    : undefined;
+const MAX_PENDING_BYTES = 8 * 1024 * 1024;
+class Sha256WebCrypto {
+    digestLength = 32;
+    secret;
+    pending = [];
+    pendingBytes = 0;
+    fallback;
+    finished = false;
+    constructor(secret) {
+        if (secret) {
+            this.secret = toUint8Array(secret);
+        }
     }
-    if (ArrayBuffer.isView(data)) {
-        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.fallback) {
+            this.fallback.update(data);
+            return;
+        }
+        this.pending.push(data.slice());
+        this.pendingBytes += data.byteLength;
+        if (this.pendingBytes >= MAX_PENDING_BYTES) {
+            this.switchToFallback();
+        }
     }
-    return new Uint8Array(data);
+    async digest() {
+        if (this.fallback) {
+            return this.fallback.digest();
+        }
+        if (this.secret && this.finished) {
+            throw new Error("Attempted to digest an already finished HMAC.");
+        }
+        const data = concatBytes(this.pending);
+        if (subtle) {
+            if (this.secret) {
+                this.finished = true;
+                const key = await subtle.importKey("raw", this.secret, { name: "HMAC", hash: "SHA-256" }, false, ["sign"]);
+                const sig = await subtle.sign("HMAC", key, data);
+                return new Uint8Array(sig);
+            }
+            const hash = await subtle.digest("SHA-256", data);
+            return new Uint8Array(hash);
+        }
+        const sha256 = new Sha256Js(this.secret);
+        sha256.update(data);
+        return sha256.digest();
+    }
+    reset() {
+        this.pending = [];
+        this.pendingBytes = 0;
+        this.fallback = undefined;
+        this.finished = false;
+    }
+    switchToFallback() {
+        const sha256Js = new Sha256Js(this.secret);
+        for (const chunk of this.pending) {
+            sha256Js.update(chunk);
+        }
+        this.fallback = sha256Js;
+        this.pending = [];
+        this.pendingBytes = 0;
+    }
 }
@@ -197,4 +395,16 @@
 const readableStreamHasher = no;
+const Md5Node = no;
+const Crc32Node = no;
+const Sha256Node = no;
 
-exports.Md5 = Md5;
+exports.Crc32 = Crc32Js;
+exports.Crc32Js = Crc32Js;
+exports.Crc32Node = Crc32Node;
+exports.Md5 = Md5Js;
+exports.Md5Js = Md5Js;
+exports.Md5Node = Md5Node;
+exports.Sha256 = Sha256WebCrypto;
+exports.Sha256Js = Sha256Js;
+exports.Sha256Node = Sha256Node;
+exports.Sha256WebCrypto = Sha256WebCrypto;
 exports.blobHasher = blobHasher;
@@ -201,0 +411,0 @@ exports.blobReader = blobReader;

dist-cjs/submodules/checksum/index.js

 const { createReadStream } = require("node:fs");
 const { Writable } = require("node:stream");
-const { toUint8Array, fromUtf8 } = require("@smithy/core/serde");
+const { toUint8Array, concatBytes } = require("@smithy/core/serde");
+const { createHash, createHmac } = require("node:crypto");
+const zlib = require("node:zlib");
 
@@ -82,30 +84,216 @@ async function blobReader(blob, onChunk, chunkSize = 1024 * 1024) {
 
-const BLOCK_SIZE = 64;
-const DIGEST_LENGTH = 16;
-const INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+class Md5Js {
+    digestLength = 16;
+    state = Uint32Array.from(INIT$1);
+    writeBuffer = new DataView(new ArrayBuffer(64));
+    bufferLength = 0;
+    bytesHashed = 0;
+    update(sourceData) {
+        const data = toUint8Array(sourceData);
+        let pos = 0;
+        let len = data.byteLength;
+        this.bytesHashed += len;
+        while (len > 0) {
+            this.writeBuffer.setUint8(this.bufferLength++, data[pos++]);
+            --len;
+            if (this.bufferLength === 64) {
+                compress(this.state, this.writeBuffer);
+                this.bufferLength = 0;
+            }
+        }
+    }
+    async digest() {
+        const state = Uint32Array.from(this.state);
+        const buf = new DataView(this.writeBuffer.buffer.slice(0));
+        let bufLen = this.bufferLength;
+        const bits = this.bytesHashed * 8;
+        buf.setUint8(bufLen++, 0x80);
+        if (this.bufferLength % 64 >= 56) {
+            for (let i = bufLen; i < 64; ++i) {
+                buf.setUint8(i, 0);
+            }
+            compress(state, buf);
+            bufLen = 0;
+        }
+        for (let i = bufLen; i < 56; ++i) {
+            buf.setUint8(i, 0);
+        }
+        buf.setUint32(56, bits >>> 0, true);
+        buf.setUint32(60, Math.floor(bits / 2 ** 32), true);
+        compress(state, buf);
+        const out = new Uint8Array(16);
+        const view = new DataView(out.buffer);
+        for (let i = 0; i < 4; ++i) {
+            view.setUint32(i * 4, state[i], true);
+        }
+        return out;
+    }
+    reset() {
+        this.state.set(INIT$1);
+        this.writeBuffer = new DataView(new ArrayBuffer(64));
+        this.bufferLength = 0;
+        this.bytesHashed = 0;
+    }
+}
+const INIT$1 = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+const M = 0xffffffff;
+const S = Uint8Array.of(7, 12, 17, 22, 5, 9, 14, 20, 4, 11, 16, 23, 6, 10, 15, 21);
+const T = Array.from({ length: 64 }, (_, i) => (Math.abs(Math.sin(i + 1)) * 2 ** 32) >>> 0);
+function compress(state, block) {
+    let a = state[0], b = state[1], c = state[2], d = state[3];
+    for (let i = 0; i < 64; ++i) {
+        let f, g;
+        if (i < 16) {
+            f = (b & c) | (~b & d);
+            g = i;
+        }
+        else if (i < 32) {
+            f = (d & b) | (c & ~d);
+            g = (5 * i + 1) % 16;
+        }
+        else if (i < 48) {
+            f = b ^ c ^ d;
+            g = (3 * i + 5) % 16;
+        }
+        else {
+            f = c ^ (b | ~d);
+            g = (7 * i) % 16;
+        }
+        const x = block.getUint32(g * 4, true);
+        const tmp = d;
+        d = c;
+        c = b;
+        const s = S[(i >> 4) * 4 + (i & 3)];
+        const sum = (((a + f) & M) + ((x + T[i]) & M)) & M;
+        b = (b + (((sum << s) | (sum >>> (32 - s))) >>> 0)) & M;
+        a = tmp;
+    }
+    state[0] = (state[0] + a) & M;
+    state[1] = (state[1] + b) & M;
+    state[2] = (state[2] + c) & M;
+    state[3] = (state[3] + d) & M;
+}
 
-class Md5 {
-    state;
-    buffer;
-    bufferLength;
-    bytesHashed;
-    finished;
-    constructor() {
-        this.reset();
+const hasNativeCrypto$1 = (() => {
+    try {
+        createHash("md5");
+        return true;
     }
-    update(sourceData) {
-        if (isEmptyData(sourceData)) {
+    catch {
+        return false;
+    }
+})();
+const Md5Node = hasNativeCrypto$1 ? buildNativeClass$2() : Md5Js;
+function buildNativeClass$2() {
+    return class Md5Node {
+        digestLength = 16;
+        hash = createHash("md5");
+        update(data) {
+            this.hash.update(toUint8Array(data));
+        }
+        async digest() {
+            const buf = this.hash.copy().digest();
+            return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
+        }
+        reset() {
+            this.hash = createHash("md5");
+        }
+    };
+}
+
+const CRC32_TABLE = new Uint32Array(256);
+for (let i = 0; i < 256; ++i) {
+    let c = i;
+    for (let j = 0; j < 8; ++j) {
+        c = c & 1 ? 0xedb88320 ^ (c >>> 1) : c >>> 1;
+    }
+    CRC32_TABLE[i] = c >>> 0;
+}
+const ONES = 0xffff_ffff;
+class Crc32Js {
+    digestLength = 4;
+    checksum = ONES;
+    update(data) {
+        for (let i = 0; i < data.length; ++i) {
+            this.checksum = (this.checksum >>> 8) ^ CRC32_TABLE[(this.checksum ^ data[i]) & 0xff];
+        }
+    }
+    async digest() {
+        const value = (this.checksum ^ ONES) >>> 0;
+        const out = new Uint8Array(4);
+        new DataView(out.buffer).setUint32(0, value, false);
+        return out;
+    }
+    reset() {
+        this.checksum = ONES;
+    }
+}
+
+const zlibCrc32 = typeof zlib.crc32 === "function" ? zlib.crc32 : undefined;
+const Crc32Node = zlibCrc32 ? buildNativeClass$1(zlibCrc32) : Crc32Js;
+function buildNativeClass$1(nativeCrc32) {
+    return class Crc32Node {
+        digestLength = 4;
+        value = 0;
+        update(data) {
+            this.value = nativeCrc32(data, this.value);
+        }
+        async digest() {
+            const out = new Uint8Array(4);
+            new DataView(out.buffer).setUint32(0, this.value >>> 0, false);
+            return out;
+        }
+        reset() {
+            this.value = 0;
+        }
+    };
+}
+
+const BLOCK = 64;
+const DIGEST_LENGTH = 32;
+const MAX_HASHABLE_LENGTH = 2 ** 53 - 1;
+class Sha256Js {
+    digestLength = DIGEST_LENGTH;
+    state = Int32Array.from(INIT);
+    w;
+    buffer = new Uint8Array(64);
+    bufferLength = 0;
+    bytesHashed = 0;
+    finished = false;
+    inner;
+    outer;
+    constructor(secret) {
+        if (secret) {
+            const key = Sha256Js.normalizeKey(secret);
+            this.inner = new Sha256Js();
+            this.outer = new Sha256Js();
+            const { inner, outer } = this;
+            const pad = new Uint8Array(BLOCK * 2);
+            for (let i = 0; i < BLOCK; ++i) {
+                pad[i] = 0x36 ^ key[i];
+                pad[i + BLOCK] = 0x5c ^ key[i];
+            }
+            inner.update(pad.subarray(0, BLOCK));
+            outer.update(pad.subarray(BLOCK));
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.inner) {
+            this.inner.update(data);
             return;
         }
-        else if (this.finished) {
-            throw new Error("Attempted to update an already finished hash.");
-        }
-        const data = convertToBuffer(sourceData);
+        const chunk = toUint8Array(data);
         let position = 0;
-        let { byteLength } = data;
+        let { byteLength } = chunk;
         this.bytesHashed += byteLength;
+        if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {
+            throw new Error("Cannot hash more than 2^53 - 1 bits");
+        }
         while (byteLength > 0) {
-            this.buffer.setUint8(this.bufferLength++, data[position++]);
+            this.buffer[this.bufferLength++] = chunk[position++];
             byteLength--;
-            if (this.bufferLength === BLOCK_SIZE) {
+            if (this.bufferLength === BLOCK) {
                 this.hashBuffer();
@@ -117,140 +305,266 @@ this.bufferLength = 0;
     async digest() {
-        if (!this.finished) {
-            const { buffer, bufferLength: undecoratedLength, bytesHashed } = this;
-            const bitsHashed = bytesHashed * 8;
-            buffer.setUint8(this.bufferLength++, 0b10000000);
-            if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {
-                for (let i = this.bufferLength; i < BLOCK_SIZE; i++) {
-                    buffer.setUint8(i, 0);
-                }
-                this.hashBuffer();
-                this.bufferLength = 0;
+        const { inner, outer } = this;
+        if (inner && outer) {
+            if (this.finished) {
+                throw new Error("Attempted to digest an already finished HMAC.");
             }
-            for (let i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {
-                buffer.setUint8(i, 0);
-            }
-            buffer.setUint32(BLOCK_SIZE - 8, bitsHashed >>> 0, true);
-            buffer.setUint32(BLOCK_SIZE - 4, Math.floor(bitsHashed / 0x100000000), true);
-            this.hashBuffer();
             this.finished = true;
+            const innerDigest = inner.digestSync();
+            outer.update(innerDigest);
+            return outer.digestSync();
         }
-        const out = new DataView(new ArrayBuffer(DIGEST_LENGTH));
-        for (let i = 0; i < 4; i++) {
-            out.setUint32(i * 4, this.state[i], true);
-        }
-        return new Uint8Array(out.buffer, out.byteOffset, out.byteLength);
+        return this.digestSync();
     }
-    hashBuffer() {
-        const { buffer, state } = this;
-        let a = state[0], b = state[1], c = state[2], d = state[3];
-        a = ff(a, b, c, d, buffer.getUint32(0, true), 7, 0xd76aa478);
-        d = ff(d, a, b, c, buffer.getUint32(4, true), 12, 0xe8c7b756);
-        c = ff(c, d, a, b, buffer.getUint32(8, true), 17, 0x242070db);
-        b = ff(b, c, d, a, buffer.getUint32(12, true), 22, 0xc1bdceee);
-        a = ff(a, b, c, d, buffer.getUint32(16, true), 7, 0xf57c0faf);
-        d = ff(d, a, b, c, buffer.getUint32(20, true), 12, 0x4787c62a);
-        c = ff(c, d, a, b, buffer.getUint32(24, true), 17, 0xa8304613);
-        b = ff(b, c, d, a, buffer.getUint32(28, true), 22, 0xfd469501);
-        a = ff(a, b, c, d, buffer.getUint32(32, true), 7, 0x698098d8);
-        d = ff(d, a, b, c, buffer.getUint32(36, true), 12, 0x8b44f7af);
-        c = ff(c, d, a, b, buffer.getUint32(40, true), 17, 0xffff5bb1);
-        b = ff(b, c, d, a, buffer.getUint32(44, true), 22, 0x895cd7be);
-        a = ff(a, b, c, d, buffer.getUint32(48, true), 7, 0x6b901122);
-        d = ff(d, a, b, c, buffer.getUint32(52, true), 12, 0xfd987193);
-        c = ff(c, d, a, b, buffer.getUint32(56, true), 17, 0xa679438e);
-        b = ff(b, c, d, a, buffer.getUint32(60, true), 22, 0x49b40821);
-        a = gg(a, b, c, d, buffer.getUint32(4, true), 5, 0xf61e2562);
-        d = gg(d, a, b, c, buffer.getUint32(24, true), 9, 0xc040b340);
-        c = gg(c, d, a, b, buffer.getUint32(44, true), 14, 0x265e5a51);
-        b = gg(b, c, d, a, buffer.getUint32(0, true), 20, 0xe9b6c7aa);
-        a = gg(a, b, c, d, buffer.getUint32(20, true), 5, 0xd62f105d);
-        d = gg(d, a, b, c, buffer.getUint32(40, true), 9, 0x02441453);
-        c = gg(c, d, a, b, buffer.getUint32(60, true), 14, 0xd8a1e681);
-        b = gg(b, c, d, a, buffer.getUint32(16, true), 20, 0xe7d3fbc8);
-        a = gg(a, b, c, d, buffer.getUint32(36, true), 5, 0x21e1cde6);
-        d = gg(d, a, b, c, buffer.getUint32(56, true), 9, 0xc33707d6);
-        c = gg(c, d, a, b, buffer.getUint32(12, true), 14, 0xf4d50d87);
-        b = gg(b, c, d, a, buffer.getUint32(32, true), 20, 0x455a14ed);
-        a = gg(a, b, c, d, buffer.getUint32(52, true), 5, 0xa9e3e905);
-        d = gg(d, a, b, c, buffer.getUint32(8, true), 9, 0xfcefa3f8);
-        c = gg(c, d, a, b, buffer.getUint32(28, true), 14, 0x676f02d9);
-        b = gg(b, c, d, a, buffer.getUint32(48, true), 20, 0x8d2a4c8a);
-        a = hh(a, b, c, d, buffer.getUint32(20, true), 4, 0xfffa3942);
-        d = hh(d, a, b, c, buffer.getUint32(32, true), 11, 0x8771f681);
-        c = hh(c, d, a, b, buffer.getUint32(44, true), 16, 0x6d9d6122);
-        b = hh(b, c, d, a, buffer.getUint32(56, true), 23, 0xfde5380c);
-        a = hh(a, b, c, d, buffer.getUint32(4, true), 4, 0xa4beea44);
-        d = hh(d, a, b, c, buffer.getUint32(16, true), 11, 0x4bdecfa9);
-        c = hh(c, d, a, b, buffer.getUint32(28, true), 16, 0xf6bb4b60);
-        b = hh(b, c, d, a, buffer.getUint32(40, true), 23, 0xbebfbc70);
-        a = hh(a, b, c, d, buffer.getUint32(52, true), 4, 0x289b7ec6);
-        d = hh(d, a, b, c, buffer.getUint32(0, true), 11, 0xeaa127fa);
-        c = hh(c, d, a, b, buffer.getUint32(12, true), 16, 0xd4ef3085);
-        b = hh(b, c, d, a, buffer.getUint32(24, true), 23, 0x04881d05);
-        a = hh(a, b, c, d, buffer.getUint32(36, true), 4, 0xd9d4d039);
-        d = hh(d, a, b, c, buffer.getUint32(48, true), 11, 0xe6db99e5);
-        c = hh(c, d, a, b, buffer.getUint32(60, true), 16, 0x1fa27cf8);
-        b = hh(b, c, d, a, buffer.getUint32(8, true), 23, 0xc4ac5665);
-        a = ii(a, b, c, d, buffer.getUint32(0, true), 6, 0xf4292244);
-        d = ii(d, a, b, c, buffer.getUint32(28, true), 10, 0x432aff97);
-        c = ii(c, d, a, b, buffer.getUint32(56, true), 15, 0xab9423a7);
-        b = ii(b, c, d, a, buffer.getUint32(20, true), 21, 0xfc93a039);
-        a = ii(a, b, c, d, buffer.getUint32(48, true), 6, 0x655b59c3);
-        d = ii(d, a, b, c, buffer.getUint32(12, true), 10, 0x8f0ccc92);
-        c = ii(c, d, a, b, buffer.getUint32(40, true), 15, 0xffeff47d);
-        b = ii(b, c, d, a, buffer.getUint32(4, true), 21, 0x85845dd1);
-        a = ii(a, b, c, d, buffer.getUint32(32, true), 6, 0x6fa87e4f);
-        d = ii(d, a, b, c, buffer.getUint32(60, true), 10, 0xfe2ce6e0);
-        c = ii(c, d, a, b, buffer.getUint32(24, true), 15, 0xa3014314);
-        b = ii(b, c, d, a, buffer.getUint32(52, true), 21, 0x4e0811a1);
-        a = ii(a, b, c, d, buffer.getUint32(16, true), 6, 0xf7537e82);
-        d = ii(d, a, b, c, buffer.getUint32(44, true), 10, 0xbd3af235);
-        c = ii(c, d, a, b, buffer.getUint32(8, true), 15, 0x2ad7d2bb);
-        b = ii(b, c, d, a, buffer.getUint32(36, true), 21, 0xeb86d391);
-        state[0] = (a + state[0]) & 0xffffffff;
-        state[1] = (b + state[1]) & 0xffffffff;
-        state[2] = (c + state[2]) & 0xffffffff;
-        state[3] = (d + state[3]) & 0xffffffff;
-    }
     reset() {
-        this.state = Uint32Array.from(INIT);
-        this.buffer = new DataView(new ArrayBuffer(BLOCK_SIZE));
+        this.state = Int32Array.from(INIT);
+        this.buffer = new Uint8Array(64);
         this.bufferLength = 0;
         this.bytesHashed = 0;
-        this.finished = false;
     }
+    digestSync() {
+        const state = this.state.slice();
+        const buffer = this.buffer.slice();
+        let bufferLength = this.bufferLength;
+        const bitsHashed = this.bytesHashed * 8;
+        const bufferView = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+        bufferView.setUint8(bufferLength++, 0x80);
+        if ((bufferLength - 1) % BLOCK >= BLOCK - 8) {
+            for (let i = bufferLength; i < BLOCK; ++i) {
+                bufferView.setUint8(i, 0);
+            }
+            this.hashBufferWith(state, buffer);
+            bufferLength = 0;
+        }
+        for (let i = bufferLength; i < BLOCK - 8; ++i) {
+            bufferView.setUint8(i, 0);
+        }
+        bufferView.setUint32(BLOCK - 8, Math.floor(bitsHashed / 0x100000000), false);
+        bufferView.setUint32(BLOCK - 4, bitsHashed, false);
+        this.hashBufferWith(state, buffer);
+        const out = new Uint8Array(DIGEST_LENGTH);
+        for (let i = 0; i < 8; ++i) {
+            out[i * 4] = (state[i] >>> 24) & 0xff;
+            out[i * 4 + 1] = (state[i] >>> 16) & 0xff;
+            out[i * 4 + 2] = (state[i] >>> 8) & 0xff;
+            out[i * 4 + 3] = (state[i] >>> 0) & 0xff;
+        }
+        return out;
+    }
+    static normalizeKey(secret) {
+        const key = toUint8Array(secret);
+        if (key.byteLength > BLOCK) {
+            const h = new Sha256Js();
+            h.update(key);
+            const out = h.digestSync();
+            const padded = new Uint8Array(BLOCK);
+            padded.set(out);
+            return padded;
+        }
+        if (key.byteLength < BLOCK) {
+            const padded = new Uint8Array(BLOCK);
+            padded.set(key);
+            return padded;
+        }
+        return key;
+    }
+    hashBuffer() {
+        this.hashBufferWith(this.state, this.buffer);
+    }
+    hashBufferWith(state, buffer) {
+        const w = (this.w ??= new Int32Array(64));
+        let s0 = state[0], s1 = state[1], s2 = state[2], s3 = state[3], s4 = state[4], s5 = state[5], s6 = state[6], s7 = state[7];
+        for (let i = 0; i < BLOCK; ++i) {
+            if (i < 16) {
+                w[i] =
+                    ((buffer[i * 4] & 0xff) << 24) |
+                        ((buffer[i * 4 + 1] & 0xff) << 16) |
+                        ((buffer[i * 4 + 2] & 0xff) << 8) |
+                        (buffer[i * 4 + 3] & 0xff);
+            }
+            else {
+                let u = w[i - 2];
+                const t1 = ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10);
+                u = w[i - 15];
+                const t2 = ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3);
+                w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0);
+            }
+            const t1 = ((((((s4 >>> 6) | (s4 << 26)) ^ ((s4 >>> 11) | (s4 << 21)) ^ ((s4 >>> 25) | (s4 << 7))) +
+                ((s4 & s5) ^ (~s4 & s6))) |
+                0) +
+                ((s7 + ((K[i] + w[i]) | 0)) | 0)) |
+                0;
+            const t2 = ((((s0 >>> 2) | (s0 << 30)) ^ ((s0 >>> 13) | (s0 << 19)) ^ ((s0 >>> 22) | (s0 << 10))) +
+                ((s0 & s1) ^ (s0 & s2) ^ (s1 & s2))) |
+                0;
+            s7 = s6;
+            s6 = s5;
+            s5 = s4;
+            s4 = (s3 + t1) | 0;
+            s3 = s2;
+            s2 = s1;
+            s1 = s0;
+            s0 = (t1 + t2) | 0;
+        }
+        state[0] += s0;
+        state[1] += s1;
+        state[2] += s2;
+        state[3] += s3;
+        state[4] += s4;
+        state[5] += s5;
+        state[6] += s6;
+        state[7] += s7;
+    }
 }
-function cmn(q, a, b, x, s, t) {
-    a = (((a + q) & 0xffffffff) + ((x + t) & 0xffffffff)) & 0xffffffff;
-    return (((a << s) | (a >>> (32 - s))) + b) & 0xffffffff;
-}
-function ff(a, b, c, d, x, s, t) {
-    return cmn((b & c) | (~b & d), a, b, x, s, t);
-}
-function gg(a, b, c, d, x, s, t) {
-    return cmn((b & d) | (c & ~d), a, b, x, s, t);
-}
-function hh(a, b, c, d, x, s, t) {
-    return cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function ii(a, b, c, d, x, s, t) {
-    return cmn(c ^ (b | ~d), a, b, x, s, t);
-}
-function isEmptyData(data) {
-    if (typeof data === "string") {
-        return data.length === 0;
+const INIT = new Int32Array([
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
+]);
+const K = new Int32Array([
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+]);
+
+const hasNativeCrypto = (() => {
+    try {
+        createHash("sha256");
+        return true;
     }
-    return data.byteLength === 0;
+    catch {
+        return false;
+    }
+})();
+const Sha256Node = hasNativeCrypto ? buildNativeClass() : Sha256Js;
+function buildNativeClass() {
+    return class Sha256Node {
+        digestLength = 32;
+        secret;
+        hash;
+        isHmac;
+        finished = false;
+        constructor(secret) {
+            this.secret = secret;
+            this.isHmac = !!secret;
+            this.hash = this.createHash();
+        }
+        update(data) {
+            if (this.finished) {
+                throw new Error("Attempted to update an already finished hash.");
+            }
+            this.hash.update(data);
+        }
+        async digest() {
+            let buf;
+            if (this.isHmac) {
+                this.finished = true;
+                buf = this.hash.digest();
+            }
+            else {
+                buf = this.hash.copy().digest();
+            }
+            return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
+        }
+        reset() {
+            this.hash = this.createHash();
+            this.finished = false;
+        }
+        createHash() {
+            return this.secret ? createHmac("sha256", toBuffer(this.secret)) : createHash("sha256");
+        }
+    };
 }
-function convertToBuffer(data) {
+function toBuffer(data) {
     if (typeof data === "string") {
-        return fromUtf8(data);
+        return data;
     }
     if (ArrayBuffer.isView(data)) {
-        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+        return Buffer.from(data.buffer, data.byteOffset, data.byteLength);
     }
-    return new Uint8Array(data);
+    return Buffer.from(data);
 }
 
-exports.Md5 = Md5;
+const { digest, sign, importKey } = globalThis?.crypto?.subtle ?? {};
+const subtle = typeof digest === "function" && typeof sign === "function" && typeof importKey === "function"
+    ? globalThis.crypto.subtle
+    : undefined;
+const MAX_PENDING_BYTES = 8 * 1024 * 1024;
+class Sha256WebCrypto {
+    digestLength = 32;
+    secret;
+    pending = [];
+    pendingBytes = 0;
+    fallback;
+    finished = false;
+    constructor(secret) {
+        if (secret) {
+            this.secret = toUint8Array(secret);
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.fallback) {
+            this.fallback.update(data);
+            return;
+        }
+        this.pending.push(data.slice());
+        this.pendingBytes += data.byteLength;
+        if (this.pendingBytes >= MAX_PENDING_BYTES) {
+            this.switchToFallback();
+        }
+    }
+    async digest() {
+        if (this.fallback) {
+            return this.fallback.digest();
+        }
+        if (this.secret && this.finished) {
+            throw new Error("Attempted to digest an already finished HMAC.");
+        }
+        const data = concatBytes(this.pending);
+        if (subtle) {
+            if (this.secret) {
+                this.finished = true;
+                const key = await subtle.importKey("raw", this.secret, { name: "HMAC", hash: "SHA-256" }, false, ["sign"]);
+                const sig = await subtle.sign("HMAC", key, data);
+                return new Uint8Array(sig);
+            }
+            const hash = await subtle.digest("SHA-256", data);
+            return new Uint8Array(hash);
+        }
+        const sha256 = new Sha256Js(this.secret);
+        sha256.update(data);
+        return sha256.digest();
+    }
+    reset() {
+        this.pending = [];
+        this.pendingBytes = 0;
+        this.fallback = undefined;
+        this.finished = false;
+    }
+    switchToFallback() {
+        const sha256Js = new Sha256Js(this.secret);
+        for (const chunk of this.pending) {
+            sha256Js.update(chunk);
+        }
+        this.fallback = sha256Js;
+        this.pending = [];
+        this.pendingBytes = 0;
+    }
+}
+
+exports.Crc32 = Crc32Node;
+exports.Crc32Js = Crc32Js;
+exports.Crc32Node = Crc32Node;
+exports.Md5 = Md5Node;
+exports.Md5Js = Md5Js;
+exports.Md5Node = Md5Node;
+exports.Sha256 = Sha256Node;
+exports.Sha256Js = Sha256Js;
+exports.Sha256Node = Sha256Node;
+exports.Sha256WebCrypto = Sha256WebCrypto;
 exports.blobHasher = blobHasher;
@@ -257,0 +571,0 @@ exports.blobReader = blobReader;

dist-cjs/submodules/checksum/index.native.js

@@ -1,2 +0,2 @@
-const { fromUtf8, fromBase64 } = require("@smithy/core/serde");
+const { toUint8Array, concatBytes, fromBase64 } = require("@smithy/core/serde");
 
@@ -21,30 +21,169 @@ async function blobReader$1(blob, onChunk, chunkSize = 1024 * 1024) {
 
-const BLOCK_SIZE = 64;
-const DIGEST_LENGTH = 16;
-const INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+class Md5Js {
+    digestLength = 16;
+    state = Uint32Array.from(INIT$1);
+    writeBuffer = new DataView(new ArrayBuffer(64));
+    bufferLength = 0;
+    bytesHashed = 0;
+    update(sourceData) {
+        const data = toUint8Array(sourceData);
+        let pos = 0;
+        let len = data.byteLength;
+        this.bytesHashed += len;
+        while (len > 0) {
+            this.writeBuffer.setUint8(this.bufferLength++, data[pos++]);
+            --len;
+            if (this.bufferLength === 64) {
+                compress(this.state, this.writeBuffer);
+                this.bufferLength = 0;
+            }
+        }
+    }
+    async digest() {
+        const state = Uint32Array.from(this.state);
+        const buf = new DataView(this.writeBuffer.buffer.slice(0));
+        let bufLen = this.bufferLength;
+        const bits = this.bytesHashed * 8;
+        buf.setUint8(bufLen++, 0x80);
+        if (this.bufferLength % 64 >= 56) {
+            for (let i = bufLen; i < 64; ++i) {
+                buf.setUint8(i, 0);
+            }
+            compress(state, buf);
+            bufLen = 0;
+        }
+        for (let i = bufLen; i < 56; ++i) {
+            buf.setUint8(i, 0);
+        }
+        buf.setUint32(56, bits >>> 0, true);
+        buf.setUint32(60, Math.floor(bits / 2 ** 32), true);
+        compress(state, buf);
+        const out = new Uint8Array(16);
+        const view = new DataView(out.buffer);
+        for (let i = 0; i < 4; ++i) {
+            view.setUint32(i * 4, state[i], true);
+        }
+        return out;
+    }
+    reset() {
+        this.state.set(INIT$1);
+        this.writeBuffer = new DataView(new ArrayBuffer(64));
+        this.bufferLength = 0;
+        this.bytesHashed = 0;
+    }
+}
+const INIT$1 = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];
+const M = 0xffffffff;
+const S = Uint8Array.of(7, 12, 17, 22, 5, 9, 14, 20, 4, 11, 16, 23, 6, 10, 15, 21);
+const T = Array.from({ length: 64 }, (_, i) => (Math.abs(Math.sin(i + 1)) * 2 ** 32) >>> 0);
+function compress(state, block) {
+    let a = state[0], b = state[1], c = state[2], d = state[3];
+    for (let i = 0; i < 64; ++i) {
+        let f, g;
+        if (i < 16) {
+            f = (b & c) | (~b & d);
+            g = i;
+        }
+        else if (i < 32) {
+            f = (d & b) | (c & ~d);
+            g = (5 * i + 1) % 16;
+        }
+        else if (i < 48) {
+            f = b ^ c ^ d;
+            g = (3 * i + 5) % 16;
+        }
+        else {
+            f = c ^ (b | ~d);
+            g = (7 * i) % 16;
+        }
+        const x = block.getUint32(g * 4, true);
+        const tmp = d;
+        d = c;
+        c = b;
+        const s = S[(i >> 4) * 4 + (i & 3)];
+        const sum = (((a + f) & M) + ((x + T[i]) & M)) & M;
+        b = (b + (((sum << s) | (sum >>> (32 - s))) >>> 0)) & M;
+        a = tmp;
+    }
+    state[0] = (state[0] + a) & M;
+    state[1] = (state[1] + b) & M;
+    state[2] = (state[2] + c) & M;
+    state[3] = (state[3] + d) & M;
+}
 
-class Md5 {
-    state;
-    buffer;
-    bufferLength;
-    bytesHashed;
-    finished;
-    constructor() {
-        this.reset();
+const CRC32_TABLE = new Uint32Array(256);
+for (let i = 0; i < 256; ++i) {
+    let c = i;
+    for (let j = 0; j < 8; ++j) {
+        c = c & 1 ? 0xedb88320 ^ (c >>> 1) : c >>> 1;
     }
-    update(sourceData) {
-        if (isEmptyData(sourceData)) {
+    CRC32_TABLE[i] = c >>> 0;
+}
+const ONES = 0xffff_ffff;
+class Crc32Js {
+    digestLength = 4;
+    checksum = ONES;
+    update(data) {
+        for (let i = 0; i < data.length; ++i) {
+            this.checksum = (this.checksum >>> 8) ^ CRC32_TABLE[(this.checksum ^ data[i]) & 0xff];
+        }
+    }
+    async digest() {
+        const value = (this.checksum ^ ONES) >>> 0;
+        const out = new Uint8Array(4);
+        new DataView(out.buffer).setUint32(0, value, false);
+        return out;
+    }
+    reset() {
+        this.checksum = ONES;
+    }
+}
+
+const BLOCK = 64;
+const DIGEST_LENGTH = 32;
+const MAX_HASHABLE_LENGTH = 2 ** 53 - 1;
+class Sha256Js {
+    digestLength = DIGEST_LENGTH;
+    state = Int32Array.from(INIT);
+    w;
+    buffer = new Uint8Array(64);
+    bufferLength = 0;
+    bytesHashed = 0;
+    finished = false;
+    inner;
+    outer;
+    constructor(secret) {
+        if (secret) {
+            const key = Sha256Js.normalizeKey(secret);
+            this.inner = new Sha256Js();
+            this.outer = new Sha256Js();
+            const { inner, outer } = this;
+            const pad = new Uint8Array(BLOCK * 2);
+            for (let i = 0; i < BLOCK; ++i) {
+                pad[i] = 0x36 ^ key[i];
+                pad[i + BLOCK] = 0x5c ^ key[i];
+            }
+            inner.update(pad.subarray(0, BLOCK));
+            outer.update(pad.subarray(BLOCK));
+        }
+    }
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.inner) {
+            this.inner.update(data);
             return;
         }
-        else if (this.finished) {
-            throw new Error("Attempted to update an already finished hash.");
-        }
-        const data = convertToBuffer(sourceData);
+        const chunk = toUint8Array(data);
         let position = 0;
-        let { byteLength } = data;
+        let { byteLength } = chunk;
         this.bytesHashed += byteLength;
+        if (this.bytesHashed * 8 > MAX_HASHABLE_LENGTH) {
+            throw new Error("Cannot hash more than 2^53 - 1 bits");
+        }
         while (byteLength > 0) {
-            this.buffer.setUint8(this.bufferLength++, data[position++]);
+            this.buffer[this.bufferLength++] = chunk[position++];
             byteLength--;
-            if (this.bufferLength === BLOCK_SIZE) {
+            if (this.bufferLength === BLOCK) {
                 this.hashBuffer();
@@ -56,137 +195,196 @@ this.bufferLength = 0;
     async digest() {
-        if (!this.finished) {
-            const { buffer, bufferLength: undecoratedLength, bytesHashed } = this;
-            const bitsHashed = bytesHashed * 8;
-            buffer.setUint8(this.bufferLength++, 0b10000000);
-            if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {
-                for (let i = this.bufferLength; i < BLOCK_SIZE; i++) {
-                    buffer.setUint8(i, 0);
-                }
-                this.hashBuffer();
-                this.bufferLength = 0;
+        const { inner, outer } = this;
+        if (inner && outer) {
+            if (this.finished) {
+                throw new Error("Attempted to digest an already finished HMAC.");
             }
-            for (let i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {
-                buffer.setUint8(i, 0);
-            }
-            buffer.setUint32(BLOCK_SIZE - 8, bitsHashed >>> 0, true);
-            buffer.setUint32(BLOCK_SIZE - 4, Math.floor(bitsHashed / 0x100000000), true);
-            this.hashBuffer();
             this.finished = true;
+            const innerDigest = inner.digestSync();
+            outer.update(innerDigest);
+            return outer.digestSync();
         }
-        const out = new DataView(new ArrayBuffer(DIGEST_LENGTH));
-        for (let i = 0; i < 4; i++) {
-            out.setUint32(i * 4, this.state[i], true);
-        }
-        return new Uint8Array(out.buffer, out.byteOffset, out.byteLength);
+        return this.digestSync();
     }
-    hashBuffer() {
-        const { buffer, state } = this;
-        let a = state[0], b = state[1], c = state[2], d = state[3];
-        a = ff(a, b, c, d, buffer.getUint32(0, true), 7, 0xd76aa478);
-        d = ff(d, a, b, c, buffer.getUint32(4, true), 12, 0xe8c7b756);
-        c = ff(c, d, a, b, buffer.getUint32(8, true), 17, 0x242070db);
-        b = ff(b, c, d, a, buffer.getUint32(12, true), 22, 0xc1bdceee);
-        a = ff(a, b, c, d, buffer.getUint32(16, true), 7, 0xf57c0faf);
-        d = ff(d, a, b, c, buffer.getUint32(20, true), 12, 0x4787c62a);
-        c = ff(c, d, a, b, buffer.getUint32(24, true), 17, 0xa8304613);
-        b = ff(b, c, d, a, buffer.getUint32(28, true), 22, 0xfd469501);
-        a = ff(a, b, c, d, buffer.getUint32(32, true), 7, 0x698098d8);
-        d = ff(d, a, b, c, buffer.getUint32(36, true), 12, 0x8b44f7af);
-        c = ff(c, d, a, b, buffer.getUint32(40, true), 17, 0xffff5bb1);
-        b = ff(b, c, d, a, buffer.getUint32(44, true), 22, 0x895cd7be);
-        a = ff(a, b, c, d, buffer.getUint32(48, true), 7, 0x6b901122);
-        d = ff(d, a, b, c, buffer.getUint32(52, true), 12, 0xfd987193);
-        c = ff(c, d, a, b, buffer.getUint32(56, true), 17, 0xa679438e);
-        b = ff(b, c, d, a, buffer.getUint32(60, true), 22, 0x49b40821);
-        a = gg(a, b, c, d, buffer.getUint32(4, true), 5, 0xf61e2562);
-        d = gg(d, a, b, c, buffer.getUint32(24, true), 9, 0xc040b340);
-        c = gg(c, d, a, b, buffer.getUint32(44, true), 14, 0x265e5a51);
-        b = gg(b, c, d, a, buffer.getUint32(0, true), 20, 0xe9b6c7aa);
-        a = gg(a, b, c, d, buffer.getUint32(20, true), 5, 0xd62f105d);
-        d = gg(d, a, b, c, buffer.getUint32(40, true), 9, 0x02441453);
-        c = gg(c, d, a, b, buffer.getUint32(60, true), 14, 0xd8a1e681);
-        b = gg(b, c, d, a, buffer.getUint32(16, true), 20, 0xe7d3fbc8);
-        a = gg(a, b, c, d, buffer.getUint32(36, true), 5, 0x21e1cde6);
-        d = gg(d, a, b, c, buffer.getUint32(56, true), 9, 0xc33707d6);
-        c = gg(c, d, a, b, buffer.getUint32(12, true), 14, 0xf4d50d87);
-        b = gg(b, c, d, a, buffer.getUint32(32, true), 20, 0x455a14ed);
-        a = gg(a, b, c, d, buffer.getUint32(52, true), 5, 0xa9e3e905);
-        d = gg(d, a, b, c, buffer.getUint32(8, true), 9, 0xfcefa3f8);
-        c = gg(c, d, a, b, buffer.getUint32(28, true), 14, 0x676f02d9);
-        b = gg(b, c, d, a, buffer.getUint32(48, true), 20, 0x8d2a4c8a);
-        a = hh(a, b, c, d, buffer.getUint32(20, true), 4, 0xfffa3942);
-        d = hh(d, a, b, c, buffer.getUint32(32, true), 11, 0x8771f681);
-        c = hh(c, d, a, b, buffer.getUint32(44, true), 16, 0x6d9d6122);
-        b = hh(b, c, d, a, buffer.getUint32(56, true), 23, 0xfde5380c);
-        a = hh(a, b, c, d, buffer.getUint32(4, true), 4, 0xa4beea44);
-        d = hh(d, a, b, c, buffer.getUint32(16, true), 11, 0x4bdecfa9);
-        c = hh(c, d, a, b, buffer.getUint32(28, true), 16, 0xf6bb4b60);
-        b = hh(b, c, d, a, buffer.getUint32(40, true), 23, 0xbebfbc70);
-        a = hh(a, b, c, d, buffer.getUint32(52, true), 4, 0x289b7ec6);
-        d = hh(d, a, b, c, buffer.getUint32(0, true), 11, 0xeaa127fa);
-        c = hh(c, d, a, b, buffer.getUint32(12, true), 16, 0xd4ef3085);
-        b = hh(b, c, d, a, buffer.getUint32(24, true), 23, 0x04881d05);
-        a = hh(a, b, c, d, buffer.getUint32(36, true), 4, 0xd9d4d039);
-        d = hh(d, a, b, c, buffer.getUint32(48, true), 11, 0xe6db99e5);
-        c = hh(c, d, a, b, buffer.getUint32(60, true), 16, 0x1fa27cf8);
-        b = hh(b, c, d, a, buffer.getUint32(8, true), 23, 0xc4ac5665);
-        a = ii(a, b, c, d, buffer.getUint32(0, true), 6, 0xf4292244);
-        d = ii(d, a, b, c, buffer.getUint32(28, true), 10, 0x432aff97);
-        c = ii(c, d, a, b, buffer.getUint32(56, true), 15, 0xab9423a7);
-        b = ii(b, c, d, a, buffer.getUint32(20, true), 21, 0xfc93a039);
-        a = ii(a, b, c, d, buffer.getUint32(48, true), 6, 0x655b59c3);
-        d = ii(d, a, b, c, buffer.getUint32(12, true), 10, 0x8f0ccc92);
-        c = ii(c, d, a, b, buffer.getUint32(40, true), 15, 0xffeff47d);
-        b = ii(b, c, d, a, buffer.getUint32(4, true), 21, 0x85845dd1);
-        a = ii(a, b, c, d, buffer.getUint32(32, true), 6, 0x6fa87e4f);
-        d = ii(d, a, b, c, buffer.getUint32(60, true), 10, 0xfe2ce6e0);
-        c = ii(c, d, a, b, buffer.getUint32(24, true), 15, 0xa3014314);
-        b = ii(b, c, d, a, buffer.getUint32(52, true), 21, 0x4e0811a1);
-        a = ii(a, b, c, d, buffer.getUint32(16, true), 6, 0xf7537e82);
-        d = ii(d, a, b, c, buffer.getUint32(44, true), 10, 0xbd3af235);
-        c = ii(c, d, a, b, buffer.getUint32(8, true), 15, 0x2ad7d2bb);
-        b = ii(b, c, d, a, buffer.getUint32(36, true), 21, 0xeb86d391);
-        state[0] = (a + state[0]) & 0xffffffff;
-        state[1] = (b + state[1]) & 0xffffffff;
-        state[2] = (c + state[2]) & 0xffffffff;
-        state[3] = (d + state[3]) & 0xffffffff;
-    }
     reset() {
-        this.state = Uint32Array.from(INIT);
-        this.buffer = new DataView(new ArrayBuffer(BLOCK_SIZE));
+        this.state = Int32Array.from(INIT);
+        this.buffer = new Uint8Array(64);
         this.bufferLength = 0;
         this.bytesHashed = 0;
-        this.finished = false;
     }
-}
-function cmn(q, a, b, x, s, t) {
-    a = (((a + q) & 0xffffffff) + ((x + t) & 0xffffffff)) & 0xffffffff;
-    return (((a << s) | (a >>> (32 - s))) + b) & 0xffffffff;
-}
-function ff(a, b, c, d, x, s, t) {
-    return cmn((b & c) | (~b & d), a, b, x, s, t);
-}
-function gg(a, b, c, d, x, s, t) {
-    return cmn((b & d) | (c & ~d), a, b, x, s, t);
-}
-function hh(a, b, c, d, x, s, t) {
-    return cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function ii(a, b, c, d, x, s, t) {
-    return cmn(c ^ (b | ~d), a, b, x, s, t);
-}
-function isEmptyData(data) {
-    if (typeof data === "string") {
-        return data.length === 0;
+    digestSync() {
+        const state = this.state.slice();
+        const buffer = this.buffer.slice();
+        let bufferLength = this.bufferLength;
+        const bitsHashed = this.bytesHashed * 8;
+        const bufferView = new DataView(buffer.buffer, buffer.byteOffset, buffer.byteLength);
+        bufferView.setUint8(bufferLength++, 0x80);
+        if ((bufferLength - 1) % BLOCK >= BLOCK - 8) {
+            for (let i = bufferLength; i < BLOCK; ++i) {
+                bufferView.setUint8(i, 0);
+            }
+            this.hashBufferWith(state, buffer);
+            bufferLength = 0;
+        }
+        for (let i = bufferLength; i < BLOCK - 8; ++i) {
+            bufferView.setUint8(i, 0);
+        }
+        bufferView.setUint32(BLOCK - 8, Math.floor(bitsHashed / 0x100000000), false);
+        bufferView.setUint32(BLOCK - 4, bitsHashed, false);
+        this.hashBufferWith(state, buffer);
+        const out = new Uint8Array(DIGEST_LENGTH);
+        for (let i = 0; i < 8; ++i) {
+            out[i * 4] = (state[i] >>> 24) & 0xff;
+            out[i * 4 + 1] = (state[i] >>> 16) & 0xff;
+            out[i * 4 + 2] = (state[i] >>> 8) & 0xff;
+            out[i * 4 + 3] = (state[i] >>> 0) & 0xff;
+        }
+        return out;
     }
-    return data.byteLength === 0;
+    static normalizeKey(secret) {
+        const key = toUint8Array(secret);
+        if (key.byteLength > BLOCK) {
+            const h = new Sha256Js();
+            h.update(key);
+            const out = h.digestSync();
+            const padded = new Uint8Array(BLOCK);
+            padded.set(out);
+            return padded;
+        }
+        if (key.byteLength < BLOCK) {
+            const padded = new Uint8Array(BLOCK);
+            padded.set(key);
+            return padded;
+        }
+        return key;
+    }
+    hashBuffer() {
+        this.hashBufferWith(this.state, this.buffer);
+    }
+    hashBufferWith(state, buffer) {
+        const w = (this.w ??= new Int32Array(64));
+        let s0 = state[0], s1 = state[1], s2 = state[2], s3 = state[3], s4 = state[4], s5 = state[5], s6 = state[6], s7 = state[7];
+        for (let i = 0; i < BLOCK; ++i) {
+            if (i < 16) {
+                w[i] =
+                    ((buffer[i * 4] & 0xff) << 24) |
+                        ((buffer[i * 4 + 1] & 0xff) << 16) |
+                        ((buffer[i * 4 + 2] & 0xff) << 8) |
+                        (buffer[i * 4 + 3] & 0xff);
+            }
+            else {
+                let u = w[i - 2];
+                const t1 = ((u >>> 17) | (u << 15)) ^ ((u >>> 19) | (u << 13)) ^ (u >>> 10);
+                u = w[i - 15];
+                const t2 = ((u >>> 7) | (u << 25)) ^ ((u >>> 18) | (u << 14)) ^ (u >>> 3);
+                w[i] = ((t1 + w[i - 7]) | 0) + ((t2 + w[i - 16]) | 0);
+            }
+            const t1 = ((((((s4 >>> 6) | (s4 << 26)) ^ ((s4 >>> 11) | (s4 << 21)) ^ ((s4 >>> 25) | (s4 << 7))) +
+                ((s4 & s5) ^ (~s4 & s6))) |
+                0) +
+                ((s7 + ((K[i] + w[i]) | 0)) | 0)) |
+                0;
+            const t2 = ((((s0 >>> 2) | (s0 << 30)) ^ ((s0 >>> 13) | (s0 << 19)) ^ ((s0 >>> 22) | (s0 << 10))) +
+                ((s0 & s1) ^ (s0 & s2) ^ (s1 & s2))) |
+                0;
+            s7 = s6;
+            s6 = s5;
+            s5 = s4;
+            s4 = (s3 + t1) | 0;
+            s3 = s2;
+            s2 = s1;
+            s1 = s0;
+            s0 = (t1 + t2) | 0;
+        }
+        state[0] += s0;
+        state[1] += s1;
+        state[2] += s2;
+        state[3] += s3;
+        state[4] += s4;
+        state[5] += s5;
+        state[6] += s6;
+        state[7] += s7;
+    }
 }
-function convertToBuffer(data) {
-    if (typeof data === "string") {
-        return fromUtf8(data);
+const INIT = new Int32Array([
+    0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19,
+]);
+const K = new Int32Array([
+    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
+    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
+    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
+    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
+    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
+    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
+    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
+]);
+
+const { digest, sign, importKey } = globalThis?.crypto?.subtle ?? {};
+const subtle = typeof digest === "function" && typeof sign === "function" && typeof importKey === "function"
+    ? globalThis.crypto.subtle
+    : undefined;
+const MAX_PENDING_BYTES = 8 * 1024 * 1024;
+class Sha256WebCrypto {
+    digestLength = 32;
+    secret;
+    pending = [];
+    pendingBytes = 0;
+    fallback;
+    finished = false;
+    constructor(secret) {
+        if (secret) {
+            this.secret = toUint8Array(secret);
+        }
     }
-    if (ArrayBuffer.isView(data)) {
-        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    update(data) {
+        if (this.finished) {
+            throw new Error("Attempted to update an already finished HMAC.");
+        }
+        if (this.fallback) {
+            this.fallback.update(data);
+            return;
+        }
+        this.pending.push(data.slice());
+        this.pendingBytes += data.byteLength;
+        if (this.pendingBytes >= MAX_PENDING_BYTES) {
+            this.switchToFallback();
+        }
     }
-    return new Uint8Array(data);
+    async digest() {
+        if (this.fallback) {
+            return this.fallback.digest();
+        }
+        if (this.secret && this.finished) {
+            throw new Error("Attempted to digest an already finished HMAC.");
+        }
+        const data = concatBytes(this.pending);
+        if (subtle) {
+            if (this.secret) {
+                this.finished = true;
+                const key = await subtle.importKey("raw", this.secret, { name: "HMAC", hash: "SHA-256" }, false, ["sign"]);
+                const sig = await subtle.sign("HMAC", key, data);
+                return new Uint8Array(sig);
+            }
+            const hash = await subtle.digest("SHA-256", data);
+            return new Uint8Array(hash);
+        }
+        const sha256 = new Sha256Js(this.secret);
+        sha256.update(data);
+        return sha256.digest();
+    }
+    reset() {
+        this.pending = [];
+        this.pendingBytes = 0;
+        this.fallback = undefined;
+        this.finished = false;
+    }
+    switchToFallback() {
+        const sha256Js = new Sha256Js(this.secret);
+        for (const chunk of this.pending) {
+            sha256Js.update(chunk);
+        }
+        this.fallback = sha256Js;
+        this.pending = [];
+        this.pendingBytes = 0;
+    }
 }
@@ -224,4 +422,16 @@
 const readableStreamHasher = no;
+const Md5Node = no;
+const Crc32Node = no;
+const Sha256Node = no;
 
-exports.Md5 = Md5;
+exports.Crc32 = Crc32Js;
+exports.Crc32Js = Crc32Js;
+exports.Crc32Node = Crc32Node;
+exports.Md5 = Md5Js;
+exports.Md5Js = Md5Js;
+exports.Md5Node = Md5Node;
+exports.Sha256 = Sha256WebCrypto;
+exports.Sha256Js = Sha256Js;
+exports.Sha256Node = Sha256Node;
+exports.Sha256WebCrypto = Sha256WebCrypto;
 exports.blobHasher = blobHasher;
@@ -228,0 +438,0 @@ exports.blobReader = blobReader;

dist-cjs/submodules/protocols/index.js

 const { Uint8ArrayBlobAdapter, sdkStreamMixin, splitEvery, splitHeader, fromBase64, _parseEpochTimestamp, _parseRfc7231DateTime, _parseRfc3339DateTimeWithOffset, LazyJsonString, NumericValue, toUtf8, fromUtf8, generateIdempotencyToken, toBase64, dateToUtcString, quoteHeader } = require("@smithy/core/serde");
 const { TypeRegistry, NormalizedSchema, translateTraits } = require("@smithy/core/schema");
-const { HttpRequest, HttpResponse } = require("@smithy/core/transport");
-const { isValidHostname, parseQueryString, parseUrl } = require("@smithy/core/transport");
+const { HttpRequest, HttpResponse, isValidHostname } = require("@smithy/core/transport");
+const { parseQueryString, parseUrl } = require("@smithy/core/transport");
 exports.HttpRequest = HttpRequest;
@@ -119,2 +119,5 @@ exports.HttpResponse = HttpResponse;
                 request.hostname = hostPrefix + request.hostname;
+                if (!isValidHostname(request.hostname)) {
+                    throw new Error(`[${request.hostname}] is not a valid hostname.`);
+                }
             }
@@ -121,0 +124,0 @@ }

dist-cjs/submodules/serde/index.browser.js

@@ -866,2 +866,5 @@ const { HttpResponse } = require("@smithy/core/transport");
 const toUint8Array = (data) => {
+    if (data instanceof Uint8Array) {
+        return data;
+    }
     if (typeof data === "string") {
@@ -876,2 +879,18 @@ return fromUtf8(data);
 
+function concatBytes(arrays, length) {
+    if (length === undefined) {
+        length = 0;
+        for (const bytes of arrays) {
+            length += bytes.byteLength;
+        }
+    }
+    const result = new Uint8Array(length);
+    let offset = 0;
+    for (const buf of arrays) {
+        result.set(buf, offset);
+        offset += buf.byteLength;
+    }
+    return result;
+}
+
 const isArrayBuffer = (arg) => (typeof ArrayBuffer === "function" && arg instanceof ArrayBuffer) ||
@@ -1206,21 +1225,15 @@ Object.prototype.toString.call(arg) === "[object ArrayBuffer]";
 const streamCollector = async (stream) => {
-    if ((typeof Blob === "function" && stream instanceof Blob) || stream.constructor?.name === "Blob") {
-        if (Blob.prototype.arrayBuffer !== undefined) {
-            return new Uint8Array(await stream.arrayBuffer());
-        }
+    if (isBlob(stream)) {
         return collectBlob(stream);
     }
-    return collectStream(stream);
+    return collectReadableStream(stream);
 };
 async function collectBlob(blob) {
-    const base64 = await readToBase64(blob);
-    const arrayBuffer = fromBase64(base64);
-    return new Uint8Array(arrayBuffer);
+    return blob.arrayBuffer().then((ab) => new Uint8Array(ab));
 }
-async function collectStream(stream) {
+async function collectReadableStream(stream) {
     const chunks = [];
     const reader = stream.getReader();
-    let isDone = false;
     let length = 0;
-    while (!isDone) {
+    while (true) {
         const { done, value } = await reader.read();
@@ -1231,29 +1244,8 @@ if (value) {
         }
-        isDone = done;
+        if (done) {
+            break;
+        }
     }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
+    return concatBytes(chunks, length);
 }
-function readToBase64(blob) {
-    return new Promise((resolve, reject) => {
-        const reader = new FileReader();
-        reader.onloadend = () => {
-            if (reader.readyState !== 2) {
-                return reject(new Error("Reader aborted too early"));
-            }
-            const result = (reader.result ?? "");
-            const commaIndex = result.indexOf(",");
-            const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
-            resolve(result.substring(dataOffset));
-        };
-        reader.onabort = () => reject(new Error("Read aborted"));
-        reader.onerror = () => reject(reader.error);
-        reader.readAsDataURL(blob);
-    });
-}
 
@@ -1347,2 +1339,3 @@ const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
 exports.calculateBodyLength = calculateBodyLength;
+exports.concatBytes = concatBytes;
 exports.copyDocumentWithTransform = copyDocumentWithTransform;
@@ -1396,2 +1389,3 @@ exports.createBufferedReadable = createBufferedReadable;
 exports.splitStream = splitStream;
+exports.streamCollector = streamCollector;
 exports.strictParseByte = strictParseByte;
@@ -1398,0 +1392,0 @@ exports.strictParseDouble = strictParseDouble;

dist-cjs/submodules/serde/index.js

@@ -24,3 +24,3 @@ const { createHmac, createHash, getRandomValues } = require("node:crypto");
 const BASE64_REGEX = /^[A-Za-z0-9+/]*={0,2}$/;
-const fromBase64$1 = (input) => {
+const fromBase64 = (input) => {
     if ((input.length * 3) % 4 !== 0) {
@@ -835,2 +835,5 @@ throw new TypeError(`Incorrect padding on base64 string.`);
 const toUint8Array = (data) => {
+    if (data instanceof Uint8Array) {
+        return data;
+    }
     if (typeof data === "string") {
@@ -845,2 +848,18 @@ return fromUtf8$1(data);
 
+function concatBytes(arrays, length) {
+    if (length === undefined) {
+        length = 0;
+        for (const bytes of arrays) {
+            length += bytes.byteLength;
+        }
+    }
+    const result = new Uint8Array(length);
+    let offset = 0;
+    for (const buf of arrays) {
+        result.set(buf, offset);
+        offset += buf.byteLength;
+    }
+    return result;
+}
+
 const deserializerMiddleware = (options, deserializer) => (next, context) => async (args) => {
@@ -1031,2 +1050,6 @@ const { response } = await next(args);
     }
+    _destroy(error, callback) {
+        this.source?.destroy();
+        callback(error);
+    }
 };
@@ -1043,3 +1066,3 @@
 const chars = `ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/`;
-const alphabetByEncoding = Object.entries(chars).reduce((acc, [i, c]) => {
+Object.entries(chars).reduce((acc, [i, c]) => {
     acc[c] = Number(i);
@@ -1422,3 +1445,3 @@ return acc;
         collector.on("finish", function () {
-            const bytes = new Uint8Array(Buffer.concat(this.buffers));
+            const bytes = concatBytes(this.buffers);
             resolve(bytes);
@@ -1455,58 +1478,16 @@ });
 
-const fromBase64 = (input) => {
-    let totalByteLength = (input.length / 4) * 3;
-    if (input.slice(-2) === "==") {
-        totalByteLength -= 2;
-    }
-    else if (input.slice(-1) === "=") {
-        totalByteLength--;
-    }
-    const out = new ArrayBuffer(totalByteLength);
-    const dataView = new DataView(out);
-    for (let i = 0; i < input.length; i += 4) {
-        let bits = 0;
-        let bitLength = 0;
-        for (let j = i, limit = i + 3; j <= limit; j++) {
-            if (input[j] !== "=") {
-                if (!(input[j] in alphabetByEncoding)) {
-                    throw new TypeError(`Invalid character ${input[j]} in base64 string.`);
-                }
-                bits |= alphabetByEncoding[input[j]] << ((limit - j) * bitsPerLetter);
-                bitLength += bitsPerLetter;
-            }
-            else {
-                bits >>= bitsPerLetter;
-            }
-        }
-        const chunkOffset = (i / 4) * 3;
-        bits >>= bitLength % bitsPerByte;
-        const byteLength = Math.floor(bitLength / bitsPerByte);
-        for (let k = 0; k < byteLength; k++) {
-            const offset = (byteLength - k - 1) * bitsPerByte;
-            dataView.setUint8(chunkOffset + k, (bits & (255 << offset)) >> offset);
-        }
-    }
-    return new Uint8Array(out);
-};
-
 const streamCollector$1 = async (stream) => {
-    if ((typeof Blob === "function" && stream instanceof Blob) || stream.constructor?.name === "Blob") {
-        if (Blob.prototype.arrayBuffer !== undefined) {
-            return new Uint8Array(await stream.arrayBuffer());
-        }
+    if (isBlob(stream)) {
         return collectBlob(stream);
     }
-    return collectStream(stream);
+    return collectReadableStream(stream);
 };
 async function collectBlob(blob) {
-    const base64 = await readToBase64(blob);
-    const arrayBuffer = fromBase64(base64);
-    return new Uint8Array(arrayBuffer);
+    return blob.arrayBuffer().then((ab) => new Uint8Array(ab));
 }
-async function collectStream(stream) {
+async function collectReadableStream(stream) {
     const chunks = [];
     const reader = stream.getReader();
-    let isDone = false;
     let length = 0;
-    while (!isDone) {
+    while (true) {
         const { done, value } = await reader.read();
@@ -1517,29 +1498,8 @@ if (value) {
         }
-        isDone = done;
+        if (done) {
+            break;
+        }
     }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
+    return concatBytes(chunks, length);
 }
-function readToBase64(blob) {
-    return new Promise((resolve, reject) => {
-        const reader = new FileReader();
-        reader.onloadend = () => {
-            if (reader.readyState !== 2) {
-                return reject(new Error("Reader aborted too early"));
-            }
-            const result = (reader.result ?? "");
-            const commaIndex = result.indexOf(",");
-            const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
-            resolve(result.substring(dataOffset));
-        };
-        reader.onabort = () => reject(new Error("Read aborted"));
-        reader.onerror = () => reject(reader.error);
-        reader.readAsDataURL(blob);
-    });
-}
 
@@ -1606,33 +1566,7 @@ const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED$1 = "The stream has already been transformed.";
 
-class Collector extends Writable {
-    bufferedBytes = [];
-    _write(chunk, encoding, callback) {
-        this.bufferedBytes.push(chunk);
-        callback();
+const streamCollector = (stream) => {
+    if (isBlob(stream)) {
+        return collectBlob(stream);
     }
-}
-const isReadableStreamInstance = (stream) => typeof ReadableStream === "function" && stream instanceof ReadableStream;
-async function collectReadableStream(stream) {
-    const chunks = [];
-    const reader = stream.getReader();
-    let isDone = false;
-    let length = 0;
-    while (!isDone) {
-        const { done, value } = await reader.read();
-        if (value) {
-            chunks.push(value);
-            length += value.length;
-        }
-        isDone = done;
-    }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
-}
-const streamCollector = (stream) => {
-    if (isReadableStreamInstance(stream)) {
+    if (isReadableStream(stream)) {
         return collectReadableStream(stream);
@@ -1642,4 +1576,5 @@ }
         const collector = new Collector();
-        stream.pipe(collector);
-        stream.on("error", (err) => {
+        const nodeStream = stream;
+        nodeStream.pipe(collector);
+        nodeStream.on("error", (err) => {
             collector.end();
@@ -1650,3 +1585,3 @@ reject(err);
         collector.on("finish", function () {
-            const bytes = new Uint8Array(Buffer.concat(this.bufferedBytes));
+            const bytes = concatBytes(this.bufferedBytes);
             resolve(bytes);
@@ -1656,2 +1591,9 @@ });
 };
+class Collector extends Writable {
+    bufferedBytes = [];
+    _write(chunk, encoding, callback) {
+        this.bufferedBytes.push(chunk);
+        callback();
+    }
+}
 
@@ -1724,3 +1666,3 @@ const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
 
-class Uint8ArrayBlobAdapter extends bindUint8ArrayBlobAdapter(toUtf8$1, fromUtf8$1, toBase64$1, fromBase64$1) {
+class Uint8ArrayBlobAdapter extends bindUint8ArrayBlobAdapter(toUtf8$1, fromUtf8$1, toBase64$1, fromBase64) {
 }
@@ -1740,2 +1682,3 @@ const _getRandomValues = getRandomValues;
 exports.calculateBodyLength = calculateBodyLength;
+exports.concatBytes = concatBytes;
 exports.copyDocumentWithTransform = copyDocumentWithTransform;
@@ -1760,3 +1703,3 @@ exports.createBufferedReadable = createBufferedReadable;
 exports.fromArrayBuffer = fromArrayBuffer;
-exports.fromBase64 = fromBase64$1;
+exports.fromBase64 = fromBase64;
 exports.fromHex = fromHex;
@@ -1790,2 +1733,3 @@ exports.fromString = fromString;
 exports.splitStream = splitStream;
+exports.streamCollector = streamCollector;
 exports.strictParseByte = strictParseByte;
@@ -1792,0 +1736,0 @@ exports.strictParseDouble = strictParseDouble;

dist-cjs/submodules/serde/index.native.js

@@ -866,2 +866,5 @@ const { HttpResponse } = require("@smithy/core/transport");
 const toUint8Array = (data) => {
+    if (data instanceof Uint8Array) {
+        return data;
+    }
     if (typeof data === "string") {
@@ -876,2 +879,18 @@ return fromUtf8(data);
 
+function concatBytes(arrays, length) {
+    if (length === undefined) {
+        length = 0;
+        for (const bytes of arrays) {
+            length += bytes.byteLength;
+        }
+    }
+    const result = new Uint8Array(length);
+    let offset = 0;
+    for (const buf of arrays) {
+        result.set(buf, offset);
+        offset += buf.byteLength;
+    }
+    return result;
+}
+
 const isArrayBuffer = (arg) => (typeof ArrayBuffer === "function" && arg instanceof ArrayBuffer) ||
@@ -1206,21 +1225,15 @@ Object.prototype.toString.call(arg) === "[object ArrayBuffer]";
 const streamCollector = async (stream) => {
-    if ((typeof Blob === "function" && stream instanceof Blob) || stream.constructor?.name === "Blob") {
-        if (Blob.prototype.arrayBuffer !== undefined) {
-            return new Uint8Array(await stream.arrayBuffer());
-        }
+    if (isBlob(stream)) {
         return collectBlob(stream);
     }
-    return collectStream(stream);
+    return collectReadableStream(stream);
 };
 async function collectBlob(blob) {
-    const base64 = await readToBase64(blob);
-    const arrayBuffer = fromBase64(base64);
-    return new Uint8Array(arrayBuffer);
+    return blob.arrayBuffer().then((ab) => new Uint8Array(ab));
 }
-async function collectStream(stream) {
+async function collectReadableStream(stream) {
     const chunks = [];
     const reader = stream.getReader();
-    let isDone = false;
     let length = 0;
-    while (!isDone) {
+    while (true) {
         const { done, value } = await reader.read();
@@ -1231,29 +1244,8 @@ if (value) {
         }
-        isDone = done;
+        if (done) {
+            break;
+        }
     }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
+    return concatBytes(chunks, length);
 }
-function readToBase64(blob) {
-    return new Promise((resolve, reject) => {
-        const reader = new FileReader();
-        reader.onloadend = () => {
-            if (reader.readyState !== 2) {
-                return reject(new Error("Reader aborted too early"));
-            }
-            const result = (reader.result ?? "");
-            const commaIndex = result.indexOf(",");
-            const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
-            resolve(result.substring(dataOffset));
-        };
-        reader.onabort = () => reject(new Error("Read aborted"));
-        reader.onerror = () => reject(reader.error);
-        reader.readAsDataURL(blob);
-    });
-}
 
@@ -1347,2 +1339,3 @@ const ERR_MSG_STREAM_HAS_BEEN_TRANSFORMED = "The stream has already been transformed.";
 exports.calculateBodyLength = calculateBodyLength;
+exports.concatBytes = concatBytes;
 exports.copyDocumentWithTransform = copyDocumentWithTransform;
@@ -1396,2 +1389,3 @@ exports.createBufferedReadable = createBufferedReadable;
 exports.splitStream = splitStream;
+exports.streamCollector = streamCollector;
 exports.strictParseByte = strictParseByte;
@@ -1398,0 +1392,0 @@ exports.strictParseDouble = strictParseDouble;

dist-es/submodules/checksum/index.browser.js

@@ -5,3 +5,9 @@ const no = Symbol.for("node-only");
 export const readableStreamHasher = no;
-export { Md5 } from "./md5-js/md5";
+export { Md5Js, Md5Js as Md5 } from "./md5/Md5Js";
+export const Md5Node = no;
+export { Crc32Js, Crc32Js as Crc32 } from "./crc32/Crc32Js";
+export const Crc32Node = no;
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256WebCrypto, Sha256WebCrypto as Sha256 } from "./sha256/Sha256WebCrypto";
+export const Sha256Node = no;
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader";

dist-es/submodules/checksum/index.js

 export { blobHasher } from "./hash-blob-browser/blobHasher";
 export { fileStreamHasher } from "./hash-stream-node/fileStreamHasher";
 export { readableStreamHasher } from "./hash-stream-node/readableStreamHasher";
-export { Md5 } from "./md5-js/md5";
+export { Md5Js } from "./md5/Md5Js";
+export { Md5Node, Md5Node as Md5 } from "./md5/Md5Node";
+export { Crc32Js } from "./crc32/Crc32Js";
+export { Crc32Node, Crc32Node as Crc32 } from "./crc32/Crc32Node";
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256Node, Sha256Node as Sha256 } from "./sha256/Sha256Node";
+export { Sha256WebCrypto } from "./sha256/Sha256WebCrypto";
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader";

dist-es/submodules/checksum/index.native.js

@@ -5,3 +5,9 @@ const no = Symbol.for("node-only");
 export const readableStreamHasher = no;
-export { Md5 } from "./md5-js/md5";
+export { Md5Js, Md5Js as Md5 } from "./md5/Md5Js";
+export const Md5Node = no;
+export { Crc32Js, Crc32Js as Crc32 } from "./crc32/Crc32Js";
+export const Crc32Node = no;
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256WebCrypto, Sha256WebCrypto as Sha256 } from "./sha256/Sha256WebCrypto";
+export const Sha256Node = no;
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader.native";

dist-es/submodules/protocols/HttpProtocol.js

 import { NormalizedSchema, TypeRegistry, translateTraits } from "@smithy/core/schema";
-import { HttpRequest, HttpResponse } from "@smithy/core/transport";
+import { HttpRequest, HttpResponse, isValidHostname } from "@smithy/core/transport";
 import { SerdeContext } from "./SerdeContext";
@@ -87,2 +87,5 @@ export class HttpProtocol extends SerdeContext {
                 request.hostname = hostPrefix + request.hostname;
+                if (!isValidHostname(request.hostname)) {
+                    throw new Error(`[${request.hostname}] is not a valid hostname.`);
+                }
             }
@@ -89,0 +92,0 @@ }

dist-es/submodules/serde/index.browser.js

@@ -22,2 +22,3 @@ import { fromBase64 } from "./util-base64/fromBase64.browser";
 export { toUtf8, fromUtf8 };
+export { concatBytes } from "./concatBytes";
 export const fromArrayBuffer = no;
@@ -40,4 +41,5 @@ export const fromString = no;
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector.browser";
 const _getRandomValues = (array) => crypto.getRandomValues(array);
 export const v4 = bindV4(_getRandomValues);
 export const generateIdempotencyToken = v4;

dist-es/submodules/serde/index.js

@@ -22,2 +22,3 @@ import { getRandomValues } from "node:crypto";
 export { toUtf8, fromUtf8 };
+export { concatBytes } from "./concatBytes";
 export { fromArrayBuffer, fromString } from "./util-buffer-from/buffer-from";
@@ -39,4 +40,5 @@ export { isArrayBuffer } from "./is-array-buffer/is-array-buffer";
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector";
 const _getRandomValues = getRandomValues;
 export const v4 = bindV4(_getRandomValues);
 export const generateIdempotencyToken = v4;

dist-es/submodules/serde/index.native.js

@@ -24,2 +24,3 @@ import { fromBase64 } from "./util-base64/fromBase64.browser";
 export { toUtf8 } from "./util-utf8/toUtf8.browser";
+export { concatBytes } from "./concatBytes";
 export const fromArrayBuffer = no;
@@ -42,4 +43,5 @@ export const fromString = no;
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector.browser";
 const _getRandomValues = (array) => crypto.getRandomValues(array);
 export const v4 = bindV4(_getRandomValues);
 export const generateIdempotencyToken = v4;

dist-es/submodules.../util-stream/checksum/ChecksumStream.js

@@ -60,2 +60,6 @@ import { Duplex } from "node:stream";
     }
+    _destroy(error, callback) {
+        this.source?.destroy();
+        callback(error);
+    }
 }

dist-es/submodules/serde/util-stream/headStream.js

 import { Writable } from "node:stream";
+import { concatBytes } from "../concatBytes";
 import { headStream as headWebStream } from "./headStream.browser";
@@ -18,3 +19,3 @@ import { isReadableStream } from "./stream-type-check";
         collector.on("finish", function () {
-            const bytes = new Uint8Array(Buffer.concat(this.buffers));
+            const bytes = concatBytes(this.buffers);
             resolve(bytes);
@@ -21,0 +22,0 @@ });

dist-es/submodules...util-stream/stream-collector.browser.js

@@ -1,22 +0,17 @@
-import { fromBase64 } from "../util-base64/fromBase64.browser";
+import { concatBytes } from "../concatBytes";
+import { isBlob } from "./stream-type-check";
 export const streamCollector = async (stream) => {
-    if ((typeof Blob === "function" && stream instanceof Blob) || stream.constructor?.name === "Blob") {
-        if (Blob.prototype.arrayBuffer !== undefined) {
-            return new Uint8Array(await stream.arrayBuffer());
-        }
+    if (isBlob(stream)) {
         return collectBlob(stream);
     }
-    return collectStream(stream);
+    return collectReadableStream(stream);
 };
-async function collectBlob(blob) {
-    const base64 = await readToBase64(blob);
-    const arrayBuffer = fromBase64(base64);
-    return new Uint8Array(arrayBuffer);
+export async function collectBlob(blob) {
+    return blob.arrayBuffer().then((ab) => new Uint8Array(ab));
 }
-async function collectStream(stream) {
+export async function collectReadableStream(stream) {
     const chunks = [];
     const reader = stream.getReader();
-    let isDone = false;
     let length = 0;
-    while (!isDone) {
+    while (true) {
         const { done, value } = await reader.read();
@@ -27,28 +22,7 @@ if (value) {
         }
-        isDone = done;
+        if (done) {
+            break;
+        }
     }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
+    return concatBytes(chunks, length);
 }
-function readToBase64(blob) {
-    return new Promise((resolve, reject) => {
-        const reader = new FileReader();
-        reader.onloadend = () => {
-            if (reader.readyState !== 2) {
-                return reject(new Error("Reader aborted too early"));
-            }
-            const result = (reader.result ?? "");
-            const commaIndex = result.indexOf(",");
-            const dataOffset = commaIndex > -1 ? commaIndex + 1 : result.length;
-            resolve(result.substring(dataOffset));
-        };
-        reader.onabort = () => reject(new Error("Read aborted"));
-        reader.onerror = () => reject(reader.error);
-        reader.readAsDataURL(blob);
-    });
-}

dist-es/submodules/serde/util-stream/stream-collector.js

 import { Writable } from "node:stream";
-class Collector extends Writable {
-    bufferedBytes = [];
-    _write(chunk, encoding, callback) {
-        this.bufferedBytes.push(chunk);
-        callback();
+import { concatBytes } from "../concatBytes";
+import { collectBlob, collectReadableStream } from "./stream-collector.browser";
+import { isBlob, isReadableStream } from "./stream-type-check";
+export const streamCollector = (stream) => {
+    if (isBlob(stream)) {
+        return collectBlob(stream);
     }
-}
-const isReadableStreamInstance = (stream) => typeof ReadableStream === "function" && stream instanceof ReadableStream;
-async function collectReadableStream(stream) {
-    const chunks = [];
-    const reader = stream.getReader();
-    let isDone = false;
-    let length = 0;
-    while (!isDone) {
-        const { done, value } = await reader.read();
-        if (value) {
-            chunks.push(value);
-            length += value.length;
-        }
-        isDone = done;
-    }
-    const collected = new Uint8Array(length);
-    let offset = 0;
-    for (const chunk of chunks) {
-        collected.set(chunk, offset);
-        offset += chunk.length;
-    }
-    return collected;
-}
-export const streamCollector = (stream) => {
-    if (isReadableStreamInstance(stream)) {
+    if (isReadableStream(stream)) {
         return collectReadableStream(stream);
@@ -37,4 +14,5 @@ }
         const collector = new Collector();
-        stream.pipe(collector);
-        stream.on("error", (err) => {
+        const nodeStream = stream;
+        nodeStream.pipe(collector);
+        nodeStream.on("error", (err) => {
             collector.end();
@@ -45,3 +23,3 @@ reject(err);
         collector.on("finish", function () {
-            const bytes = new Uint8Array(Buffer.concat(this.bufferedBytes));
+            const bytes = concatBytes(this.bufferedBytes);
             resolve(bytes);
@@ -51,1 +29,8 @@ });
 };
+class Collector extends Writable {
+    bufferedBytes = [];
+    _write(chunk, encoding, callback) {
+        this.bufferedBytes.push(chunk);
+        callback();
+    }
+}

dist-es/submodules/serde/util-utf8/toUint8Array.browser.js

 import { fromUtf8 } from "./fromUtf8.browser";
 export const toUint8Array = (data) => {
+    if (data instanceof Uint8Array) {
+        return data;
+    }
     if (typeof data === "string") {
@@ -4,0 +7,0 @@ return fromUtf8(data);

dist-es/submodules/serde/util-utf8/toUint8Array.js

 import { fromUtf8 } from "./fromUtf8";
 export const toUint8Array = (data) => {
+    if (data instanceof Uint8Array) {
+        return data;
+    }
     if (typeof data === "string") {
@@ -4,0 +7,0 @@ return fromUtf8(data);

dist-types/submodules/checksum/index.browser.d.ts

 export { blobHasher } from "./hash-blob-browser/blobHasher";
 export declare const fileStreamHasher: symbol;
 export declare const readableStreamHasher: symbol;
-export { Md5 } from "./md5-js/md5";
+export { Md5Js, Md5Js as Md5 } from "./md5/Md5Js";
+export declare const Md5Node: symbol;
+export { Crc32Js, Crc32Js as Crc32 } from "./crc32/Crc32Js";
+export declare const Crc32Node: symbol;
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256WebCrypto, Sha256WebCrypto as Sha256 } from "./sha256/Sha256WebCrypto";
+export declare const Sha256Node: symbol;
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader";

dist-types/submodules/checksum/index.d.ts

 export { blobHasher } from "./hash-blob-browser/blobHasher";
 export { fileStreamHasher } from "./hash-stream-node/fileStreamHasher";
 export { readableStreamHasher } from "./hash-stream-node/readableStreamHasher";
-export { Md5 } from "./md5-js/md5";
+export { Md5Js } from "./md5/Md5Js";
+export { Md5Node, Md5Node as Md5 } from "./md5/Md5Node";
+export { Crc32Js } from "./crc32/Crc32Js";
+export { Crc32Node, Crc32Node as Crc32 } from "./crc32/Crc32Node";
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256Node, Sha256Node as Sha256 } from "./sha256/Sha256Node";
+export { Sha256WebCrypto } from "./sha256/Sha256WebCrypto";
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader";

dist-types/submodules/checksum/index.native.d.ts

 export { blobHasher } from "./hash-blob-browser/blobHasher";
 export declare const fileStreamHasher: symbol;
 export declare const readableStreamHasher: symbol;
-export { Md5 } from "./md5-js/md5";
+export { Md5Js, Md5Js as Md5 } from "./md5/Md5Js";
+export declare const Md5Node: symbol;
+export { Crc32Js, Crc32Js as Crc32 } from "./crc32/Crc32Js";
+export declare const Crc32Node: symbol;
+export { Sha256Js } from "./sha256/Sha256Js";
+export { Sha256WebCrypto, Sha256WebCrypto as Sha256 } from "./sha256/Sha256WebCrypto";
+export declare const Sha256Node: symbol;
 export { blobReader } from "./chunked-blob-reader/chunked-blob-reader.native";

dist-types/submodules/serde/index.browser.d.ts

@@ -19,2 +19,3 @@ import { fromBase64 } from "./util-base64/fromBase64.browser";
 export { toUtf8, fromUtf8 };
+export { concatBytes } from "./concatBytes";
 export { type StringEncoding } from "./util-buffer-from/buffer-from";
@@ -39,3 +40,4 @@ export declare const fromArrayBuffer: symbol;
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector.browser";
 export declare const v4: () => string;
 export declare const generateIdempotencyToken: () => string;

dist-types/submodules/serde/index.d.ts

@@ -19,2 +19,3 @@ import { fromBase64 } from "./util-base64/fromBase64";
 export { toUtf8, fromUtf8 };
+export { concatBytes } from "./concatBytes";
 export { fromArrayBuffer, fromString, type StringEncoding } from "./util-buffer-from/buffer-from";
@@ -37,3 +38,4 @@ export { isArrayBuffer } from "./is-array-buffer/is-array-buffer";
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector";
 export declare const v4: () => string;
 export declare const generateIdempotencyToken: () => string;

dist-types/submodules/serde/index.native.d.ts

@@ -17,2 +17,3 @@ export { copyDocumentWithTransform } from "./copyDocumentWithTransform";
 export { toUtf8 } from "./util-utf8/toUtf8.browser";
+export { concatBytes } from "./concatBytes";
 export { type StringEncoding } from "./util-buffer-from/buffer-from";
@@ -37,3 +38,4 @@ export declare const fromArrayBuffer: symbol;
 export { isReadableStream, isBlob } from "./util-stream/stream-type-check";
+export { streamCollector } from "./util-stream/stream-collector.browser";
 export declare const v4: () => string;
 export declare const generateIdempotencyToken: () => string;

dist-types/submodu...til-stream/checksum/ChecksumStream.d.ts

@@ -60,2 +60,11 @@ import { Duplex, type Readable } from "node:stream";
     _final(callback: (err?: Error) => void): Promise<void>;
+    /**
+     * Destroy the upstream source for cleanup so it is not left dangling, then
+     * complete this stream's destruction. The error is intentionally not forwarded
+     * to the source as the source is typically internal and without an error listener
+     * The error still surfaces on this stream via the callback.
+     * Do not call this directly.
+     * @internal
+     */
+    _destroy(error: Error | null, callback: (error?: Error | null | undefined) => void): void;
 }

dist-types/submodu...il-stream/stream-collector.browser.d.ts

 /**
- * Inlined from @smithy/fetch-http-handler streamCollector.
- *
  * @internal
  */
 export declare const streamCollector: (stream: Blob | ReadableStream) => Promise<Uint8Array>;
+/**
+ * @internal
+ */
+export declare function collectBlob(blob: Blob): Promise<Uint8Array>;
+/**
+ * @internal
+ */
+export declare function collectReadableStream(stream: ReadableStream): Promise<Uint8Array>;

dist-types/submodu...serde/util-stream/stream-collector.d.ts

 import { type Readable } from "node:stream";
 import type { ReadableStream as IReadableStream } from "node:stream/web";
-export declare const streamCollector: (stream: Readable | IReadableStream) => Promise<Uint8Array>;
+/**
+ * @internal
+ */
+export declare const streamCollector: (stream: Readable | IReadableStream | ReadableStream | Blob) => Promise<Uint8Array>;

package.json

 {
   "name": "@smithy/core",
-  "version": "3.26.0",
+  "version": "3.27.0",
   "scripts": {
+    "benchmark:cbor": "node ./scripts/cbor-perf.mjs",
+    "benchmark:checksum": "node ./scripts/checksum-perf.mjs",
     "build": "concurrently 'yarn:build:types' 'yarn:build:es:cjs'",
@@ -18,4 +20,3 @@ "build:es:cjs": "premove dist-es && yarn g:tsc -p tsconfig.es.json && node ../../scripts/inline",
     "test:integration": "yarn g:vitest run -c vitest.config.integ.mts",
-    "test:integration:watch": "yarn g:vitest watch -c vitest.config.integ.mts",
-    "test:cbor:perf": "node ./scripts/cbor-perf.mjs"
+    "test:integration:watch": "yarn g:vitest watch -c vitest.config.integ.mts"
   },
@@ -22,0 +23,0 @@ "main": "./dist-cjs/index.js",

dist-es/submodules/checksum/md5-js/constants.js

-export const BLOCK_SIZE = 64;
-export const DIGEST_LENGTH = 16;
-export const INIT = [0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476];

dist-es/submodules/checksum/md5-js/md5.js

-import { fromUtf8 } from "@smithy/core/serde";
-import { BLOCK_SIZE, DIGEST_LENGTH, INIT } from "./constants";
-export class Md5 {
-    state;
-    buffer;
-    bufferLength;
-    bytesHashed;
-    finished;
-    constructor() {
-        this.reset();
-    }
-    update(sourceData) {
-        if (isEmptyData(sourceData)) {
-            return;
-        }
-        else if (this.finished) {
-            throw new Error("Attempted to update an already finished hash.");
-        }
-        const data = convertToBuffer(sourceData);
-        let position = 0;
-        let { byteLength } = data;
-        this.bytesHashed += byteLength;
-        while (byteLength > 0) {
-            this.buffer.setUint8(this.bufferLength++, data[position++]);
-            byteLength--;
-            if (this.bufferLength === BLOCK_SIZE) {
-                this.hashBuffer();
-                this.bufferLength = 0;
-            }
-        }
-    }
-    async digest() {
-        if (!this.finished) {
-            const { buffer, bufferLength: undecoratedLength, bytesHashed } = this;
-            const bitsHashed = bytesHashed * 8;
-            buffer.setUint8(this.bufferLength++, 0b10000000);
-            if (undecoratedLength % BLOCK_SIZE >= BLOCK_SIZE - 8) {
-                for (let i = this.bufferLength; i < BLOCK_SIZE; i++) {
-                    buffer.setUint8(i, 0);
-                }
-                this.hashBuffer();
-                this.bufferLength = 0;
-            }
-            for (let i = this.bufferLength; i < BLOCK_SIZE - 8; i++) {
-                buffer.setUint8(i, 0);
-            }
-            buffer.setUint32(BLOCK_SIZE - 8, bitsHashed >>> 0, true);
-            buffer.setUint32(BLOCK_SIZE - 4, Math.floor(bitsHashed / 0x100000000), true);
-            this.hashBuffer();
-            this.finished = true;
-        }
-        const out = new DataView(new ArrayBuffer(DIGEST_LENGTH));
-        for (let i = 0; i < 4; i++) {
-            out.setUint32(i * 4, this.state[i], true);
-        }
-        return new Uint8Array(out.buffer, out.byteOffset, out.byteLength);
-    }
-    hashBuffer() {
-        const { buffer, state } = this;
-        let a = state[0], b = state[1], c = state[2], d = state[3];
-        a = ff(a, b, c, d, buffer.getUint32(0, true), 7, 0xd76aa478);
-        d = ff(d, a, b, c, buffer.getUint32(4, true), 12, 0xe8c7b756);
-        c = ff(c, d, a, b, buffer.getUint32(8, true), 17, 0x242070db);
-        b = ff(b, c, d, a, buffer.getUint32(12, true), 22, 0xc1bdceee);
-        a = ff(a, b, c, d, buffer.getUint32(16, true), 7, 0xf57c0faf);
-        d = ff(d, a, b, c, buffer.getUint32(20, true), 12, 0x4787c62a);
-        c = ff(c, d, a, b, buffer.getUint32(24, true), 17, 0xa8304613);
-        b = ff(b, c, d, a, buffer.getUint32(28, true), 22, 0xfd469501);
-        a = ff(a, b, c, d, buffer.getUint32(32, true), 7, 0x698098d8);
-        d = ff(d, a, b, c, buffer.getUint32(36, true), 12, 0x8b44f7af);
-        c = ff(c, d, a, b, buffer.getUint32(40, true), 17, 0xffff5bb1);
-        b = ff(b, c, d, a, buffer.getUint32(44, true), 22, 0x895cd7be);
-        a = ff(a, b, c, d, buffer.getUint32(48, true), 7, 0x6b901122);
-        d = ff(d, a, b, c, buffer.getUint32(52, true), 12, 0xfd987193);
-        c = ff(c, d, a, b, buffer.getUint32(56, true), 17, 0xa679438e);
-        b = ff(b, c, d, a, buffer.getUint32(60, true), 22, 0x49b40821);
-        a = gg(a, b, c, d, buffer.getUint32(4, true), 5, 0xf61e2562);
-        d = gg(d, a, b, c, buffer.getUint32(24, true), 9, 0xc040b340);
-        c = gg(c, d, a, b, buffer.getUint32(44, true), 14, 0x265e5a51);
-        b = gg(b, c, d, a, buffer.getUint32(0, true), 20, 0xe9b6c7aa);
-        a = gg(a, b, c, d, buffer.getUint32(20, true), 5, 0xd62f105d);
-        d = gg(d, a, b, c, buffer.getUint32(40, true), 9, 0x02441453);
-        c = gg(c, d, a, b, buffer.getUint32(60, true), 14, 0xd8a1e681);
-        b = gg(b, c, d, a, buffer.getUint32(16, true), 20, 0xe7d3fbc8);
-        a = gg(a, b, c, d, buffer.getUint32(36, true), 5, 0x21e1cde6);
-        d = gg(d, a, b, c, buffer.getUint32(56, true), 9, 0xc33707d6);
-        c = gg(c, d, a, b, buffer.getUint32(12, true), 14, 0xf4d50d87);
-        b = gg(b, c, d, a, buffer.getUint32(32, true), 20, 0x455a14ed);
-        a = gg(a, b, c, d, buffer.getUint32(52, true), 5, 0xa9e3e905);
-        d = gg(d, a, b, c, buffer.getUint32(8, true), 9, 0xfcefa3f8);
-        c = gg(c, d, a, b, buffer.getUint32(28, true), 14, 0x676f02d9);
-        b = gg(b, c, d, a, buffer.getUint32(48, true), 20, 0x8d2a4c8a);
-        a = hh(a, b, c, d, buffer.getUint32(20, true), 4, 0xfffa3942);
-        d = hh(d, a, b, c, buffer.getUint32(32, true), 11, 0x8771f681);
-        c = hh(c, d, a, b, buffer.getUint32(44, true), 16, 0x6d9d6122);
-        b = hh(b, c, d, a, buffer.getUint32(56, true), 23, 0xfde5380c);
-        a = hh(a, b, c, d, buffer.getUint32(4, true), 4, 0xa4beea44);
-        d = hh(d, a, b, c, buffer.getUint32(16, true), 11, 0x4bdecfa9);
-        c = hh(c, d, a, b, buffer.getUint32(28, true), 16, 0xf6bb4b60);
-        b = hh(b, c, d, a, buffer.getUint32(40, true), 23, 0xbebfbc70);
-        a = hh(a, b, c, d, buffer.getUint32(52, true), 4, 0x289b7ec6);
-        d = hh(d, a, b, c, buffer.getUint32(0, true), 11, 0xeaa127fa);
-        c = hh(c, d, a, b, buffer.getUint32(12, true), 16, 0xd4ef3085);
-        b = hh(b, c, d, a, buffer.getUint32(24, true), 23, 0x04881d05);
-        a = hh(a, b, c, d, buffer.getUint32(36, true), 4, 0xd9d4d039);
-        d = hh(d, a, b, c, buffer.getUint32(48, true), 11, 0xe6db99e5);
-        c = hh(c, d, a, b, buffer.getUint32(60, true), 16, 0x1fa27cf8);
-        b = hh(b, c, d, a, buffer.getUint32(8, true), 23, 0xc4ac5665);
-        a = ii(a, b, c, d, buffer.getUint32(0, true), 6, 0xf4292244);
-        d = ii(d, a, b, c, buffer.getUint32(28, true), 10, 0x432aff97);
-        c = ii(c, d, a, b, buffer.getUint32(56, true), 15, 0xab9423a7);
-        b = ii(b, c, d, a, buffer.getUint32(20, true), 21, 0xfc93a039);
-        a = ii(a, b, c, d, buffer.getUint32(48, true), 6, 0x655b59c3);
-        d = ii(d, a, b, c, buffer.getUint32(12, true), 10, 0x8f0ccc92);
-        c = ii(c, d, a, b, buffer.getUint32(40, true), 15, 0xffeff47d);
-        b = ii(b, c, d, a, buffer.getUint32(4, true), 21, 0x85845dd1);
-        a = ii(a, b, c, d, buffer.getUint32(32, true), 6, 0x6fa87e4f);
-        d = ii(d, a, b, c, buffer.getUint32(60, true), 10, 0xfe2ce6e0);
-        c = ii(c, d, a, b, buffer.getUint32(24, true), 15, 0xa3014314);
-        b = ii(b, c, d, a, buffer.getUint32(52, true), 21, 0x4e0811a1);
-        a = ii(a, b, c, d, buffer.getUint32(16, true), 6, 0xf7537e82);
-        d = ii(d, a, b, c, buffer.getUint32(44, true), 10, 0xbd3af235);
-        c = ii(c, d, a, b, buffer.getUint32(8, true), 15, 0x2ad7d2bb);
-        b = ii(b, c, d, a, buffer.getUint32(36, true), 21, 0xeb86d391);
-        state[0] = (a + state[0]) & 0xffffffff;
-        state[1] = (b + state[1]) & 0xffffffff;
-        state[2] = (c + state[2]) & 0xffffffff;
-        state[3] = (d + state[3]) & 0xffffffff;
-    }
-    reset() {
-        this.state = Uint32Array.from(INIT);
-        this.buffer = new DataView(new ArrayBuffer(BLOCK_SIZE));
-        this.bufferLength = 0;
-        this.bytesHashed = 0;
-        this.finished = false;
-    }
-}
-function cmn(q, a, b, x, s, t) {
-    a = (((a + q) & 0xffffffff) + ((x + t) & 0xffffffff)) & 0xffffffff;
-    return (((a << s) | (a >>> (32 - s))) + b) & 0xffffffff;
-}
-function ff(a, b, c, d, x, s, t) {
-    return cmn((b & c) | (~b & d), a, b, x, s, t);
-}
-function gg(a, b, c, d, x, s, t) {
-    return cmn((b & d) | (c & ~d), a, b, x, s, t);
-}
-function hh(a, b, c, d, x, s, t) {
-    return cmn(b ^ c ^ d, a, b, x, s, t);
-}
-function ii(a, b, c, d, x, s, t) {
-    return cmn(c ^ (b | ~d), a, b, x, s, t);
-}
-function isEmptyData(data) {
-    if (typeof data === "string") {
-        return data.length === 0;
-    }
-    return data.byteLength === 0;
-}
-function convertToBuffer(data) {
-    if (typeof data === "string") {
-        return fromUtf8(data);
-    }
-    if (ArrayBuffer.isView(data)) {
-        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
-    }
-    return new Uint8Array(data);
-}

dist-types/submodules/checksum/md5-js/constants.d.ts

-/**
- * @internal
- */
-export declare const BLOCK_SIZE = 64;
-/**
- * @internal
- */
-export declare const DIGEST_LENGTH = 16;
-/**
- * @internal
- */
-export declare const INIT: number[];

dist-types/submodules/checksum/md5-js/md5.d.ts

-import type { Checksum, SourceData } from "@smithy/types";
-/**
- * @internal
- */
-export declare class Md5 implements Checksum {
-    private state;
-    private buffer;
-    private bufferLength;
-    private bytesHashed;
-    private finished;
-    constructor();
-    update(sourceData: SourceData): void;
-    digest(): Promise<Uint8Array>;
-    private hashBuffer;
-    reset(): void;
-}

New alerts

AI-detected potential code anomaly

Supply chain risk

AI has identified unusual behaviors that may pose a security risk.

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Fixed alerts

AI-detected potential code anomaly

Supply chain risk

AI has identified unusual behaviors that may pose a security risk.

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Improved metrics

Total package byte prevSize

1352903

2.1%

Number of package files

736

1.66%

Lines of code

34094

3.4%

No dependency changes