@chainsafe/as-sha256 - npm Package Compare versions

Comparing version 0.2.2 to 0.2.3

CHANGELOG.md

@@ -1,3 +0,8 @@
-## 0.2.1 (2021-05-06)
+## 0.2.3 (2021-08-10)
 
+- Add digestObjects method ([da5d82](https://github.com/ChainSafe/as-sha256/commit/da5d82))
+- Optimised w+k for digest64 ([359555](https://github.com/ChainSafe/as-sha256/commit/359555))
+
+## 0.2.2 (2021-05-06)
+
 ### Bug Fixes
@@ -4,0 +9,0 @@

lib/index.d.ts

@@ -0,1 +1,17 @@
+
+/**
+ * This is a hash representation with 8 numbers, each 4 bytes.
+ * That makes it 32 bytes, the same to Uint8Array(32).
+ */
+export interface HashObject {
+  h0: number;
+  h1: number;
+  h2: number;
+  h3: number;
+  h4: number;
+  h5: number;
+  h6: number;
+  h7: number;
+}
+
 export default class SHA256 {
@@ -9,2 +25,6 @@ constructor();
   static digest64(data: Uint8Array): Uint8Array;
+  static digestTwoHashObjects(obj1: HashObject, obj2: HashObject): HashObject;
 }
+
+export function hashObjectToByteArray(obj: HashObject, byteArr: ArrayLike<number>, offset: number): void;
+export function byteArrayToHashObject(byteArr: ArrayLike<number>): HashObject;

lib/index.js

@@ -6,2 +6,4 @@ "use strict";
 });
+exports.hashObjectToByteArray = hashObjectToByteArray;
+exports.byteArrayToHashObject = byteArrayToHashObject;
 exports.default = void 0;
@@ -14,2 +16,8 @@
     this.ctx = (0, _wasm.newInstance)();
+    this.wasmInputValue = this.ctx.input.value;
+    this.wasmOutputValue = this.ctx.output.value;
+    this.uint8InputArray = new Uint8Array(this.ctx.memory.buffer, this.wasmInputValue, this.ctx.INPUT_LENGTH);
+    this.uint8OutputArray = new Uint8Array(this.ctx.memory.buffer, this.wasmOutputValue, 32);
+    this.uint32InputArray = new Uint32Array(this.ctx.memory.buffer, this.wasmInputValue, this.ctx.INPUT_LENGTH); // extracting numbers from Uint32Array causes more memory
+    // this.uint32OutputArray = new Uint32Array(this.ctx.memory.buffer, this.wasmOutputValue, 32);
   }
@@ -24,3 +32,2 @@
     const INPUT_LENGTH = this.ctx.INPUT_LENGTH;
-    const input = new Uint8Array(this.ctx.memory.buffer, this.ctx.input.value, INPUT_LENGTH);
 
@@ -30,8 +37,8 @@ if (data.length > INPUT_LENGTH) {
         const sliced = data.slice(i, i + INPUT_LENGTH);
-        input.set(sliced);
-        this.ctx.update(this.ctx.input.value, sliced.length);
+        this.uint8InputArray.set(sliced);
+        this.ctx.update(this.wasmInputValue, sliced.length);
       }
     } else {
-      input.set(data);
-      this.ctx.update(this.ctx.input.value, data.length);
+      this.uint8InputArray.set(data);
+      this.ctx.update(this.wasmInputValue, data.length);
     }
@@ -43,5 +50,5 @@
   final() {
-    this.ctx.final(this.ctx.output.value);
+    this.ctx.final(this.wasmOutputValue);
     const output = new Uint8Array(32);
-    output.set(new Uint8Array(this.ctx.memory.buffer, this.ctx.output.value, 32));
+    output.set(this.uint8OutputArray);
     return output;
@@ -65,7 +72,6 @@ }
     if (data.length == 64) {
-      const input = new Uint8Array(staticInstance.ctx.memory.buffer, staticInstance.ctx.input.value, staticInstance.ctx.INPUT_LENGTH);
-      input.set(data);
-      staticInstance.ctx.digest64(staticInstance.ctx.input.value, staticInstance.ctx.output.value);
+      staticInstance.uint8InputArray.set(data);
+      staticInstance.ctx.digest64(staticInstance.wasmInputValue, staticInstance.wasmOutputValue);
       const output = new Uint8Array(32);
-      output.set(new Uint8Array(staticInstance.ctx.memory.buffer, staticInstance.ctx.output.value, 32));
+      output.set(staticInstance.uint8OutputArray);
       return output;
@@ -76,6 +82,200 @@ }
   }
+  /**
+   * Digest 2 objects, each has 8 properties from h0 to h7.
+   * The performance is a little bit better than digest64 due to the use of Uint32Array
+   * and the memory is a little bit better than digest64 due to no temporary Uint8Array.
+   * @returns
+   */
 
+
+  static digestTwoHashObjects(obj1, obj2) {
+    // TODO: expect obj1 and obj2 as HashObject
+    staticInstance.uint32InputArray[0] = obj1.h0;
+    staticInstance.uint32InputArray[1] = obj1.h1;
+    staticInstance.uint32InputArray[2] = obj1.h2;
+    staticInstance.uint32InputArray[3] = obj1.h3;
+    staticInstance.uint32InputArray[4] = obj1.h4;
+    staticInstance.uint32InputArray[5] = obj1.h5;
+    staticInstance.uint32InputArray[6] = obj1.h6;
+    staticInstance.uint32InputArray[7] = obj1.h7;
+    staticInstance.uint32InputArray[8] = obj2.h0;
+    staticInstance.uint32InputArray[9] = obj2.h1;
+    staticInstance.uint32InputArray[10] = obj2.h2;
+    staticInstance.uint32InputArray[11] = obj2.h3;
+    staticInstance.uint32InputArray[12] = obj2.h4;
+    staticInstance.uint32InputArray[13] = obj2.h5;
+    staticInstance.uint32InputArray[14] = obj2.h6;
+    staticInstance.uint32InputArray[15] = obj2.h7;
+    staticInstance.ctx.digest64(staticInstance.wasmInputValue, staticInstance.wasmOutputValue); // extracting numbers from Uint32Array causes more memory
+
+    return byteArrayToHashObject(staticInstance.uint8OutputArray);
+  }
+
 }
 
 exports.default = SHA256;
-const staticInstance = new SHA256();
+const staticInstance = new SHA256();
+/**
+ * Pass 8 numbers in an object and set that to inputArray.
+ * This function contains multiple same procedures but we intentionally
+ * do it step by step to improve performance a bit.
+ **/
+
+function hashObjectToByteArray(obj, byteArr, offset) {
+  let tmp = obj.h0;
+  byteArr[0 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[1 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[2 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[3 + offset] = tmp & 0xff;
+  tmp = obj.h1;
+  byteArr[4 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[5 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[6 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[7 + offset] = tmp & 0xff;
+  tmp = obj.h2;
+  byteArr[8 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[9 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[10 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[11 + offset] = tmp & 0xff;
+  tmp = obj.h3;
+  byteArr[12 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[13 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[14 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[15 + offset] = tmp & 0xff;
+  tmp = obj.h4;
+  byteArr[16 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[17 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[18 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[19 + offset] = tmp & 0xff;
+  tmp = obj.h5;
+  byteArr[20 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[21 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[22 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[23 + offset] = tmp & 0xff;
+  tmp = obj.h6;
+  byteArr[24 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[25 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[26 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[27 + offset] = tmp & 0xff;
+  tmp = obj.h7;
+  byteArr[28 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[29 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[30 + offset] = tmp & 0xff;
+  tmp = tmp >> 8;
+  byteArr[31 + offset] = tmp & 0xff;
+}
+/**
+ * Parse outputArray into an object of 8 numbers.
+ * This is the order that makes Uint32Array the same to Uint8Array
+ * This function contains multiple same procedures but we intentionally
+ * do it step by step to improve performance a bit.
+ **/
+
+
+function byteArrayToHashObject(byteArr) {
+  let tmp = 0;
+  tmp |= byteArr[3] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[2] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[1] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[0] & 0xff;
+  const h0 = tmp;
+  tmp = 0;
+  tmp |= byteArr[7] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[6] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[5] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[4] & 0xff;
+  const h1 = tmp;
+  tmp = 0;
+  tmp |= byteArr[11] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[10] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[9] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[8] & 0xff;
+  const h2 = tmp;
+  tmp = 0;
+  tmp |= byteArr[15] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[14] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[13] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[12] & 0xff;
+  const h3 = tmp;
+  tmp = 0;
+  tmp |= byteArr[19] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[18] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[17] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[16] & 0xff;
+  const h4 = tmp;
+  tmp = 0;
+  tmp |= byteArr[23] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[22] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[21] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[20] & 0xff;
+  const h5 = tmp;
+  tmp = 0;
+  tmp |= byteArr[27] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[26] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[25] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[24] & 0xff;
+  const h6 = tmp;
+  tmp = 0;
+  tmp |= byteArr[31] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[30] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[29] & 0xff;
+  tmp = tmp << 8;
+  tmp |= byteArr[28] & 0xff;
+  const h7 = tmp;
+  return {
+    h0,
+    h1,
+    h2,
+    h3,
+    h4,
+    h5,
+    h6,
+    h7
+  };
+}

lib/wasm.js

@@ -15,3 +15,3 @@ "use strict";
 /* babel-plugin-inline-binary-import '../build/optimized.wasm' */
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+const wasmCode = "\0asm\x01\0\0\0\x01\x1F\x06`\x01\x7F\0`\x02\x7F\x7F\0`\0\0`\x01\x7F\x01\x7F`\x03\x7F\x7F\x7F\0`\x04\x7F\x7F\x7F\x7F\0\x02\r\x01\x03env\x05abort\0\x05\x03\x10\x0F\0\x03\x01\x03\x02\x02\x04\x01\x01\x03\0\0\0\x01\x02\x05\x03\x01\0\x01\x06\xAC\x01\"\x7F\0A\x80\x04\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x7F\x01A\0\x0B\x07V\t\x06memory\x02\0\fINPUT_LENGTH\x03\0\x05input\x03\x1C\x06output\x03\x1E\x04init\0\x06\x06update\0\t\x05final\0\x0B\x06digest\0\f\bdigest64\0\x0E\b\x01\x0F\n\xCA\x0E\x0FF\x01\x02\x7F \0?\0\"\x02A\x10t\"\x01K\x04@ 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@@ -18,0 +18,0 @@ const _module = new WebAssembly.Module(_buffer.Buffer.from(wasmCode, 'binary'));

package.json

 {
     "name": "@chainsafe/as-sha256",
-    "version": "0.2.2",
+    "version": "0.2.3",
     "description": "An AssemblyScript implementation of SHA256",
@@ -32,3 +32,4 @@ "author": "ChainSafe Systems",
         "test:unit:node": "mocha -r .babel-register test/*.spec.js",
-        "test:perf": "mocha -r .babel-register test/perf.test.js",
+        "benchmark": "node ./node_modules/.bin/benchmark 'test/benchmark.test.js'",
+        "benchmark:local": "yarn benchmark --local",
         "test:unit:browser": "karma start --single-run --browsers ChromeHeadless,FirefoxHeadless karma.config.js",
@@ -63,3 +64,4 @@ "test:ci": "yarn test:as-ci",
         "karma-webpack": "^4.0.2",
-        "mocha": "^6.2.2",
+        "@dapplion/benchmark": "^0.1.6",
+        "mocha": "^8.3.0",
         "webpack": "^4.39.3",
@@ -66,0 +68,0 @@ "webpack-cli": "^3.3.7"

README.md

@@ -24,2 +24,5 @@ # as-sha256
 hash = SHA256.digest(Buffer.from("Hello world"));
+
+// or use a faster one-pass interface for hashing (only) 64 bytes
+hash = SHA256.digest64(Buffer.from("abcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefgh"));
 ```
@@ -26,0 +29,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Major refactor

Supply chain risk

Package has recently undergone a major refactor. It may be unstable or indicate significant internal changes. Use caution when updating to versions that include significant changes.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

111233

increased by15.54%

Lines of code

318

increased by205.77%

Number of lines in readme file

32

increased by10.34%

Worsened metrics

Dev dependency count

23

increased by4.55%

Number of medium supply chain risk alerts

1

increased byInfinity%

No dependency changes