@iden3/js-crypto - npm Package Compare versions

Comparing version 1.0.0-beta.0 to 1.0.0-beta.1

dist/cjs/poseidon/poseidon-opt.js

@@ -59,4 +59,9 @@ "use strict";
     }
+    // HashBytes returns a sponge hash of a msg byte slice split into blocks of 31 bytes
     static hashBytes(msg) {
-        const inputs = new Array(SPONGE_INPUTS).fill(BigInt(0));
+        return Poseidon.hashBytesX(msg, SPONGE_INPUTS);
+    }
+    // hashBytesX returns a sponge hash of a msg byte slice split into blocks of 31 bytes
+    static hashBytesX(msg, frameSize) {
+        const inputs = new Array(frameSize).fill(BigInt(0));
         let dirty = false;
@@ -68,8 +73,8 @@ let hash;
             inputs[k] = ff_1.utils.beBuff2int(msg.slice(SPONGE_CHUNK_SIZE * i, SPONGE_CHUNK_SIZE * (i + 1)));
-            if (k === SPONGE_INPUTS - 1) {
+            if (k === frameSize - 1) {
                 hash = Poseidon.hash(inputs);
                 dirty = false;
-                inputs[0] = hash.valueOf();
+                inputs[0] = hash;
                 inputs.fill(BigInt(0), 1, SPONGE_CHUNK_SIZE);
-                for (let j = 1; j < SPONGE_INPUTS; j += 1) {
+                for (let j = 1; j < frameSize; j += 1) {
                     inputs[j] = BigInt(0);
@@ -96,5 +101,37 @@ }
         }
-        // @ts-ignore: if we reach here then hash should be assigned value
-        return hash.valueOf();
+        return hash;
     }
+    // SpongeHashX returns a sponge hash of inputs using Poseidon with configurable frame size
+    static spongeHashX(inputs, frameSize) {
+        if (frameSize < 2 || frameSize > 16) {
+            throw new Error('incorrect frame size');
+        }
+        // not used frame default to zero
+        let frame = new Array(frameSize).fill(BigInt(0));
+        let dirty = false;
+        let hash;
+        let k = 0;
+        for (let i = 0; i < inputs.length; i++) {
+            dirty = true;
+            frame[k] = inputs[i];
+            if (k === frameSize - 1) {
+                hash = this.hash(frame);
+                dirty = false;
+                frame = new Array(frameSize).fill(BigInt(0));
+                frame[0] = hash;
+                k = 1;
+            }
+            else {
+                k++;
+            }
+        }
+        if (dirty) {
+            // we haven't hashed something in the main sponge loop and need to do hash here
+            hash = this.hash(frame);
+        }
+        if (!hash) {
+            throw new Error('hash is undefined');
+        }
+        return hash;
+    }
 }
@@ -101,0 +138,0 @@ exports.Poseidon = Poseidon;

dist/esm/poseidon/poseidon-opt.js

@@ -53,4 +53,9 @@ import { F1Field, Scalar, utils } from '../ff';
     }
+    // HashBytes returns a sponge hash of a msg byte slice split into blocks of 31 bytes
     static hashBytes(msg) {
-        const inputs = new Array(SPONGE_INPUTS).fill(BigInt(0));
+        return Poseidon.hashBytesX(msg, SPONGE_INPUTS);
+    }
+    // hashBytesX returns a sponge hash of a msg byte slice split into blocks of 31 bytes
+    static hashBytesX(msg, frameSize) {
+        const inputs = new Array(frameSize).fill(BigInt(0));
         let dirty = false;
@@ -62,8 +67,8 @@ let hash;
             inputs[k] = utils.beBuff2int(msg.slice(SPONGE_CHUNK_SIZE * i, SPONGE_CHUNK_SIZE * (i + 1)));
-            if (k === SPONGE_INPUTS - 1) {
+            if (k === frameSize - 1) {
                 hash = Poseidon.hash(inputs);
                 dirty = false;
-                inputs[0] = hash.valueOf();
+                inputs[0] = hash;
                 inputs.fill(BigInt(0), 1, SPONGE_CHUNK_SIZE);
-                for (let j = 1; j < SPONGE_INPUTS; j += 1) {
+                for (let j = 1; j < frameSize; j += 1) {
                     inputs[j] = BigInt(0);
@@ -90,5 +95,37 @@ }
         }
-        // @ts-ignore: if we reach here then hash should be assigned value
-        return hash.valueOf();
+        return hash;
     }
+    // SpongeHashX returns a sponge hash of inputs using Poseidon with configurable frame size
+    static spongeHashX(inputs, frameSize) {
+        if (frameSize < 2 || frameSize > 16) {
+            throw new Error('incorrect frame size');
+        }
+        // not used frame default to zero
+        let frame = new Array(frameSize).fill(BigInt(0));
+        let dirty = false;
+        let hash;
+        let k = 0;
+        for (let i = 0; i < inputs.length; i++) {
+            dirty = true;
+            frame[k] = inputs[i];
+            if (k === frameSize - 1) {
+                hash = this.hash(frame);
+                dirty = false;
+                frame = new Array(frameSize).fill(BigInt(0));
+                frame[0] = hash;
+                k = 1;
+            }
+            else {
+                k++;
+            }
+        }
+        if (dirty) {
+            // we haven't hashed something in the main sponge loop and need to do hash here
+            hash = this.hash(frame);
+        }
+        if (!hash) {
+            throw new Error('hash is undefined');
+        }
+        return hash;
+    }
 }
@@ -95,0 +132,0 @@ Poseidon.F = F;

dist/types/poseidon/poseidon-opt.d.ts

@@ -6,3 +6,5 @@ export declare const OPT: any;
     static hashBytes(msg: Uint8Array): bigint;
+    static hashBytesX(msg: Uint8Array, frameSize: number): bigint;
+    static spongeHashX(inputs: bigint[], frameSize: number): bigint;
 }
 export declare const poseidon: typeof Poseidon;

package.json

 {
   "name": "@iden3/js-crypto",
-  "version": "1.0.0-beta.0",
+  "version": "1.0.0-beta.1",
   "description": "",
@@ -5,0 +5,0 @@ "main": "dist/cjs/index.js",

No alert changes

Improved metrics

Total package byte prevSize

11394350

increased by0.08%

Lines of code

102207

increased by0.11%

No dependency changes