mirror of
https://github.com/emn178/js-sha256.git
synced 2026-08-12 20:32:16 +08:00
### Added
- Add dedicated ESM, CommonJS, Node.js, and browser distribution entry points. - Add streaming support to the native Node.js SHA-256, SHA-224, and HMAC implementations. - Add distribution contract tests and real browser Web Worker tests with Playwright. - Add Node.js 16, 18, 20, 22, and 24 runtime tests against the packed npm artifact. ### Changed - Refactor the implementation into environment-independent core and Node.js modules. - Use the native Node.js `crypto` implementation for hashing and HMAC. - Load the package version automatically when generating distribution banners. - Export unminified ESM source directly and build only CommonJS and browser/minified distributions. - Replace `expect.js`, NYC, Tiny Worker, and UglifyJS with Node.js assert, c8, Playwright, and Rollup/Terser. - Build automatically before `npm pack` and `npm publish`. - Throw error if update after finalize ### Removed - Remove runtime CommonJS, AMD, Node.js, Web Worker, and ArrayBuffer environment switches from the core implementation. - Remove legacy environment flags and obsolete compatibility polyfills. - Remove the old generated `sha256.mjs` and `sha256.node.mjs` entry points.
This commit is contained in:
Yi-Cyuan Chen
@@ -0,0 +1,447 @@
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/**
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* [js-sha256]{@link https://github.com/emn178/js-sha256}
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*
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* @version 1.0.0
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* @author Chen, Yi-Cyuan [emn178@gmail.com]
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* @copyright Chen, Yi-Cyuan 2014-2026
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* @license MIT
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*/
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'use strict';
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var INPUT_ERROR = 'input is invalid type';
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var FINALIZE_ERROR = 'finalize already called';
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var ARRAY_BUFFER = typeof ArrayBuffer !== 'undefined';
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var formatMessage = function (message) {
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var type = typeof message;
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if (type === 'string') {
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return [message, true];
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}
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if (Array.isArray(message)) {
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return [message, false];
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}
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if (ARRAY_BUFFER && message) {
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if (message.constructor === ArrayBuffer) {
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return [new Uint8Array(message), false];
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} else if (ArrayBuffer.isView(message)) {
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return [message, false];
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}
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}
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throw new Error(INPUT_ERROR);
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};
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var HEX_CHARS = '0123456789abcdef'.split('');
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var EXTRA = [-2147483648, 8388608, 32768, 128];
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var SHIFT = [24, 16, 8, 0];
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var K = [
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
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0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
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0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
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0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
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0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
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0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
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];
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var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer'];
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var blocks = [];
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var createOutputMethod = function (outputType, is224) {
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return function (message) {
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return new Sha256(is224, true).update(message)[outputType]();
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};
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};
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var createMethod = function (is224) {
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var method = createOutputMethod('hex', is224);
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method.create = function () {
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return new Sha256(is224);
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};
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method.update = function (message) {
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return method.create().update(message);
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};
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for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
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var type = OUTPUT_TYPES[i];
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method[type] = createOutputMethod(type, is224);
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}
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return method;
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};
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var createHmacOutputMethod = function (outputType, is224) {
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return function (key, message) {
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return new HmacSha256(key, is224, true).update(message)[outputType]();
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};
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};
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var createHmacMethod = function (is224) {
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var method = createHmacOutputMethod('hex', is224);
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method.create = function (key) {
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return new HmacSha256(key, is224);
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};
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method.update = function (key, message) {
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return method.create(key).update(message);
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};
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for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
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var type = OUTPUT_TYPES[i];
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method[type] = createHmacOutputMethod(type, is224);
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}
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return method;
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};
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function Sha256(is224, sharedMemory) {
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if (sharedMemory) {
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blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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this.blocks = blocks;
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} else {
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this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
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}
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if (is224) {
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this.h0 = 0xc1059ed8;
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this.h1 = 0x367cd507;
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this.h2 = 0x3070dd17;
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this.h3 = 0xf70e5939;
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this.h4 = 0xffc00b31;
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this.h5 = 0x68581511;
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this.h6 = 0x64f98fa7;
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this.h7 = 0xbefa4fa4;
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} else { // 256
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this.h0 = 0x6a09e667;
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this.h1 = 0xbb67ae85;
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this.h2 = 0x3c6ef372;
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this.h3 = 0xa54ff53a;
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this.h4 = 0x510e527f;
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this.h5 = 0x9b05688c;
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this.h6 = 0x1f83d9ab;
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this.h7 = 0x5be0cd19;
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}
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this.block = this.start = this.bytes = this.hBytes = 0;
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this.finalized = this.hashed = false;
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this.first = true;
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this.is224 = is224;
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}
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Sha256.prototype.update = function (message) {
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if (this.finalized) {
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throw new Error(FINALIZE_ERROR);
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}
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var result = formatMessage(message);
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message = result[0];
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var isString = result[1];
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var code, index = 0, i, length = message.length, blocks = this.blocks;
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while (index < length) {
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if (this.hashed) {
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this.hashed = false;
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blocks[0] = this.block;
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this.block = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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}
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if (isString) {
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for (i = this.start; index < length && i < 64; ++index) {
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code = message.charCodeAt(index);
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if (code < 0x80) {
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blocks[i >>> 2] |= code << SHIFT[i++ & 3];
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} else if (code < 0x800) {
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blocks[i >>> 2] |= (0xc0 | (code >>> 6)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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} else if (code < 0xd800 || code >= 0xe000) {
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blocks[i >>> 2] |= (0xe0 | (code >>> 12)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | ((code >>> 6) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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} else {
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code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
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blocks[i >>> 2] |= (0xf0 | (code >>> 18)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | ((code >>> 12) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | ((code >>> 6) & 0x3f)) << SHIFT[i++ & 3];
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blocks[i >>> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
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}
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}
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} else {
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for (i = this.start; index < length && i < 64; ++index) {
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blocks[i >>> 2] |= message[index] << SHIFT[i++ & 3];
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}
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}
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this.lastByteIndex = i;
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this.bytes += i - this.start;
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if (i >= 64) {
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this.block = blocks[16];
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this.start = i - 64;
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this.hash();
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this.hashed = true;
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} else {
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this.start = i;
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}
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}
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if (this.bytes > 4294967295) {
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this.hBytes += this.bytes / 4294967296 << 0;
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this.bytes = this.bytes % 4294967296;
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}
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return this;
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};
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Sha256.prototype.finalize = function () {
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if (this.finalized) {
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return;
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}
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this.finalized = true;
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var blocks = this.blocks, i = this.lastByteIndex;
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blocks[16] = this.block;
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blocks[i >>> 2] |= EXTRA[i & 3];
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this.block = blocks[16];
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if (i >= 56) {
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if (!this.hashed) {
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this.hash();
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}
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blocks[0] = this.block;
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blocks[16] = blocks[1] = blocks[2] = blocks[3] =
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blocks[4] = blocks[5] = blocks[6] = blocks[7] =
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blocks[8] = blocks[9] = blocks[10] = blocks[11] =
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blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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}
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blocks[14] = this.hBytes << 3 | this.bytes >>> 29;
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blocks[15] = this.bytes << 3;
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this.hash();
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};
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Sha256.prototype.hash = function () {
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var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6,
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h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc;
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for (j = 16; j < 64; ++j) {
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// rightrotate
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t1 = blocks[j - 15];
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s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3);
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t1 = blocks[j - 2];
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s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10);
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blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0;
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}
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bc = b & c;
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for (j = 0; j < 64; j += 4) {
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if (this.first) {
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if (this.is224) {
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ab = 300032;
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t1 = blocks[0] - 1413257819;
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h = t1 - 150054599 << 0;
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d = t1 + 24177077 << 0;
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} else {
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ab = 704751109;
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t1 = blocks[0] - 210244248;
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h = t1 - 1521486534 << 0;
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d = t1 + 143694565 << 0;
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}
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this.first = false;
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} else {
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s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10));
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s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7));
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ab = a & b;
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maj = ab ^ (a & c) ^ bc;
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ch = (e & f) ^ (~e & g);
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t1 = h + s1 + ch + K[j] + blocks[j];
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t2 = s0 + maj;
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h = d + t1 << 0;
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d = t1 + t2 << 0;
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}
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s0 = ((d >>> 2) | (d << 30)) ^ ((d >>> 13) | (d << 19)) ^ ((d >>> 22) | (d << 10));
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s1 = ((h >>> 6) | (h << 26)) ^ ((h >>> 11) | (h << 21)) ^ ((h >>> 25) | (h << 7));
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da = d & a;
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maj = da ^ (d & b) ^ ab;
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ch = (h & e) ^ (~h & f);
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t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
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t2 = s0 + maj;
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g = c + t1 << 0;
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c = t1 + t2 << 0;
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s0 = ((c >>> 2) | (c << 30)) ^ ((c >>> 13) | (c << 19)) ^ ((c >>> 22) | (c << 10));
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s1 = ((g >>> 6) | (g << 26)) ^ ((g >>> 11) | (g << 21)) ^ ((g >>> 25) | (g << 7));
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cd = c & d;
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maj = cd ^ (c & a) ^ da;
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ch = (g & h) ^ (~g & e);
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t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
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t2 = s0 + maj;
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f = b + t1 << 0;
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b = t1 + t2 << 0;
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s0 = ((b >>> 2) | (b << 30)) ^ ((b >>> 13) | (b << 19)) ^ ((b >>> 22) | (b << 10));
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s1 = ((f >>> 6) | (f << 26)) ^ ((f >>> 11) | (f << 21)) ^ ((f >>> 25) | (f << 7));
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bc = b & c;
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maj = bc ^ (b & d) ^ cd;
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ch = (f & g) ^ (~f & h);
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t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
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t2 = s0 + maj;
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e = a + t1 << 0;
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a = t1 + t2 << 0;
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this.chromeBugWorkAround = true;
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}
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this.h0 = this.h0 + a << 0;
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this.h1 = this.h1 + b << 0;
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this.h2 = this.h2 + c << 0;
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this.h3 = this.h3 + d << 0;
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this.h4 = this.h4 + e << 0;
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this.h5 = this.h5 + f << 0;
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this.h6 = this.h6 + g << 0;
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this.h7 = this.h7 + h << 0;
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};
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Sha256.prototype.hex = function () {
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this.finalize();
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var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
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h6 = this.h6, h7 = this.h7;
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var hex = HEX_CHARS[(h0 >>> 28) & 0x0F] + HEX_CHARS[(h0 >>> 24) & 0x0F] +
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HEX_CHARS[(h0 >>> 20) & 0x0F] + HEX_CHARS[(h0 >>> 16) & 0x0F] +
|
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HEX_CHARS[(h0 >>> 12) & 0x0F] + HEX_CHARS[(h0 >>> 8) & 0x0F] +
|
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HEX_CHARS[(h0 >>> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
|
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HEX_CHARS[(h1 >>> 28) & 0x0F] + HEX_CHARS[(h1 >>> 24) & 0x0F] +
|
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HEX_CHARS[(h1 >>> 20) & 0x0F] + HEX_CHARS[(h1 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h1 >>> 12) & 0x0F] + HEX_CHARS[(h1 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h1 >>> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
|
||||
HEX_CHARS[(h2 >>> 28) & 0x0F] + HEX_CHARS[(h2 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h2 >>> 20) & 0x0F] + HEX_CHARS[(h2 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h2 >>> 12) & 0x0F] + HEX_CHARS[(h2 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h2 >>> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
|
||||
HEX_CHARS[(h3 >>> 28) & 0x0F] + HEX_CHARS[(h3 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h3 >>> 20) & 0x0F] + HEX_CHARS[(h3 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h3 >>> 12) & 0x0F] + HEX_CHARS[(h3 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h3 >>> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
|
||||
HEX_CHARS[(h4 >>> 28) & 0x0F] + HEX_CHARS[(h4 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h4 >>> 20) & 0x0F] + HEX_CHARS[(h4 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h4 >>> 12) & 0x0F] + HEX_CHARS[(h4 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h4 >>> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
|
||||
HEX_CHARS[(h5 >>> 28) & 0x0F] + HEX_CHARS[(h5 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h5 >>> 20) & 0x0F] + HEX_CHARS[(h5 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h5 >>> 12) & 0x0F] + HEX_CHARS[(h5 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h5 >>> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
|
||||
HEX_CHARS[(h6 >>> 28) & 0x0F] + HEX_CHARS[(h6 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h6 >>> 20) & 0x0F] + HEX_CHARS[(h6 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h6 >>> 12) & 0x0F] + HEX_CHARS[(h6 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h6 >>> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
|
||||
if (!this.is224) {
|
||||
hex += HEX_CHARS[(h7 >>> 28) & 0x0F] + HEX_CHARS[(h7 >>> 24) & 0x0F] +
|
||||
HEX_CHARS[(h7 >>> 20) & 0x0F] + HEX_CHARS[(h7 >>> 16) & 0x0F] +
|
||||
HEX_CHARS[(h7 >>> 12) & 0x0F] + HEX_CHARS[(h7 >>> 8) & 0x0F] +
|
||||
HEX_CHARS[(h7 >>> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
|
||||
}
|
||||
return hex;
|
||||
};
|
||||
|
||||
Sha256.prototype.toString = Sha256.prototype.hex;
|
||||
|
||||
Sha256.prototype.digest = function () {
|
||||
this.finalize();
|
||||
|
||||
var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
|
||||
h6 = this.h6, h7 = this.h7;
|
||||
|
||||
var arr = [
|
||||
(h0 >>> 24) & 0xFF, (h0 >>> 16) & 0xFF, (h0 >>> 8) & 0xFF, h0 & 0xFF,
|
||||
(h1 >>> 24) & 0xFF, (h1 >>> 16) & 0xFF, (h1 >>> 8) & 0xFF, h1 & 0xFF,
|
||||
(h2 >>> 24) & 0xFF, (h2 >>> 16) & 0xFF, (h2 >>> 8) & 0xFF, h2 & 0xFF,
|
||||
(h3 >>> 24) & 0xFF, (h3 >>> 16) & 0xFF, (h3 >>> 8) & 0xFF, h3 & 0xFF,
|
||||
(h4 >>> 24) & 0xFF, (h4 >>> 16) & 0xFF, (h4 >>> 8) & 0xFF, h4 & 0xFF,
|
||||
(h5 >>> 24) & 0xFF, (h5 >>> 16) & 0xFF, (h5 >>> 8) & 0xFF, h5 & 0xFF,
|
||||
(h6 >>> 24) & 0xFF, (h6 >>> 16) & 0xFF, (h6 >>> 8) & 0xFF, h6 & 0xFF
|
||||
];
|
||||
if (!this.is224) {
|
||||
arr.push((h7 >>> 24) & 0xFF, (h7 >>> 16) & 0xFF, (h7 >>> 8) & 0xFF, h7 & 0xFF);
|
||||
}
|
||||
return arr;
|
||||
};
|
||||
|
||||
Sha256.prototype.array = Sha256.prototype.digest;
|
||||
|
||||
Sha256.prototype.arrayBuffer = function () {
|
||||
this.finalize();
|
||||
|
||||
var buffer = new ArrayBuffer(this.is224 ? 28 : 32);
|
||||
var dataView = new DataView(buffer);
|
||||
dataView.setUint32(0, this.h0);
|
||||
dataView.setUint32(4, this.h1);
|
||||
dataView.setUint32(8, this.h2);
|
||||
dataView.setUint32(12, this.h3);
|
||||
dataView.setUint32(16, this.h4);
|
||||
dataView.setUint32(20, this.h5);
|
||||
dataView.setUint32(24, this.h6);
|
||||
if (!this.is224) {
|
||||
dataView.setUint32(28, this.h7);
|
||||
}
|
||||
return buffer;
|
||||
};
|
||||
|
||||
function HmacSha256(key, is224, sharedMemory) {
|
||||
var i, result = formatMessage(key);
|
||||
key = result[0];
|
||||
if (result[1]) {
|
||||
var bytes = [], length = key.length, index = 0, code;
|
||||
for (i = 0; i < length; ++i) {
|
||||
code = key.charCodeAt(i);
|
||||
if (code < 0x80) {
|
||||
bytes[index++] = code;
|
||||
} else if (code < 0x800) {
|
||||
bytes[index++] = (0xc0 | (code >>> 6));
|
||||
bytes[index++] = (0x80 | (code & 0x3f));
|
||||
} else if (code < 0xd800 || code >= 0xe000) {
|
||||
bytes[index++] = (0xe0 | (code >>> 12));
|
||||
bytes[index++] = (0x80 | ((code >>> 6) & 0x3f));
|
||||
bytes[index++] = (0x80 | (code & 0x3f));
|
||||
} else {
|
||||
code = 0x10000 + (((code & 0x3ff) << 10) | (key.charCodeAt(++i) & 0x3ff));
|
||||
bytes[index++] = (0xf0 | (code >>> 18));
|
||||
bytes[index++] = (0x80 | ((code >>> 12) & 0x3f));
|
||||
bytes[index++] = (0x80 | ((code >>> 6) & 0x3f));
|
||||
bytes[index++] = (0x80 | (code & 0x3f));
|
||||
}
|
||||
}
|
||||
key = bytes;
|
||||
}
|
||||
|
||||
if (key.length > 64) {
|
||||
key = (new Sha256(is224, true)).update(key).array();
|
||||
}
|
||||
|
||||
var oKeyPad = [], iKeyPad = [];
|
||||
for (i = 0; i < 64; ++i) {
|
||||
var b = key[i] || 0;
|
||||
oKeyPad[i] = 0x5c ^ b;
|
||||
iKeyPad[i] = 0x36 ^ b;
|
||||
}
|
||||
|
||||
Sha256.call(this, is224, sharedMemory);
|
||||
|
||||
this.update(iKeyPad);
|
||||
this.oKeyPad = oKeyPad;
|
||||
this.inner = true;
|
||||
this.sharedMemory = sharedMemory;
|
||||
}
|
||||
HmacSha256.prototype = new Sha256();
|
||||
|
||||
HmacSha256.prototype.finalize = function () {
|
||||
Sha256.prototype.finalize.call(this);
|
||||
if (this.inner) {
|
||||
this.inner = false;
|
||||
var innerHash = this.array();
|
||||
Sha256.call(this, this.is224, this.sharedMemory);
|
||||
this.update(this.oKeyPad);
|
||||
this.update(innerHash);
|
||||
Sha256.prototype.finalize.call(this);
|
||||
}
|
||||
};
|
||||
|
||||
var sha256 = createMethod();
|
||||
var sha224 = createMethod(true);
|
||||
sha256.sha256 = sha256;
|
||||
sha256.sha224 = sha224;
|
||||
sha256.hmac = createHmacMethod();
|
||||
sha224.hmac = createHmacMethod(true);
|
||||
|
||||
module.exports = sha256;
|
||||
Reference in New Issue
Block a user