mirror of
https://github.com/denoland/deno.git
synced 2024-11-23 15:16:54 -05:00
552 lines
16 KiB
TypeScript
552 lines
16 KiB
TypeScript
/*
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* Adapted to deno from:
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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 0.9.0
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* @author Chen, Yi-Cyuan [emn178@gmail.com]
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* @copyright Chen, Yi-Cyuan 2014-2017
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* @license MIT
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*/
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export type Message = string | number[] | ArrayBuffer;
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const HEX_CHARS = "0123456789abcdef".split("");
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const EXTRA = [-2147483648, 8388608, 32768, 128] as const;
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const SHIFT = [24, 16, 8, 0] as const;
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// prettier-ignore
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// deno-fmt-ignore
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const K = [
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0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
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0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
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0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
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0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
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0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
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0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
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0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
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0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
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0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
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0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
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0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2,
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] as const;
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const blocks: number[] = [];
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export class Sha256 {
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#block!: number;
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#blocks!: number[];
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#bytes!: number;
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#finalized!: boolean;
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#first!: boolean;
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#h0!: number;
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#h1!: number;
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#h2!: number;
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#h3!: number;
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#h4!: number;
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#h5!: number;
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#h6!: number;
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#h7!: number;
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#hashed!: boolean;
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#hBytes!: number;
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#is224!: boolean;
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#lastByteIndex = 0;
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#start!: number;
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constructor(is224 = false, sharedMemory = false) {
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this.init(is224, sharedMemory);
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}
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protected init(is224: boolean, sharedMemory: boolean): void {
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if (sharedMemory) {
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blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = 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 {
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// 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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/** Update hash
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*
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* @param message The message you want to hash.
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*/
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update(message: Message): this {
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if (this.#finalized) {
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return this;
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}
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let msg: string | number[] | Uint8Array | undefined;
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if (message instanceof ArrayBuffer) {
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msg = new Uint8Array(message);
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} else {
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msg = message;
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}
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let index = 0;
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const length = msg.length;
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const blocks = this.#blocks;
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while (index < length) {
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let i: number;
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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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blocks[16] = blocks[1] = blocks[2] = blocks[3] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
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}
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if (typeof msg !== "string") {
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for (i = this.#start; index < length && i < 64; ++index) {
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blocks[i >> 2] |= msg[index] << SHIFT[i++ & 3];
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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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let code = msg.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 =
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0x10000 +
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(((code & 0x3ff) << 10) | (msg.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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}
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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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protected finalize(): void {
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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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const blocks = this.#blocks;
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const 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] = blocks[4] = blocks[5] = blocks[6] = blocks[7] = blocks[8] = blocks[9] = blocks[10] = blocks[11] = 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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protected hash(): void {
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let a = this.#h0;
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let b = this.#h1;
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let c = this.#h2;
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let d = this.#h3;
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let e = this.#h4;
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let f = this.#h5;
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let g = this.#h6;
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let h = this.#h7;
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const blocks = this.#blocks;
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let s0: number;
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let s1: number;
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let maj: number;
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let t1: number;
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let t2: number;
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let ch: number;
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let ab: number;
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let da: number;
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let cd: number;
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let bc: number;
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for (let 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 =
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((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 (let 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 =
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((a >>> 2) | (a << 30)) ^
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((a >>> 13) | (a << 19)) ^
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((a >>> 22) | (a << 10));
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s1 =
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((e >>> 6) | (e << 26)) ^
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((e >>> 11) | (e << 21)) ^
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((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 =
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((d >>> 2) | (d << 30)) ^
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((d >>> 13) | (d << 19)) ^
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((d >>> 22) | (d << 10));
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s1 =
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((h >>> 6) | (h << 26)) ^
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((h >>> 11) | (h << 21)) ^
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((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 =
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((c >>> 2) | (c << 30)) ^
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((c >>> 13) | (c << 19)) ^
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((c >>> 22) | (c << 10));
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s1 =
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((g >>> 6) | (g << 26)) ^
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((g >>> 11) | (g << 21)) ^
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((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 =
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((b >>> 2) | (b << 30)) ^
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((b >>> 13) | (b << 19)) ^
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((b >>> 22) | (b << 10));
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s1 =
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((f >>> 6) | (f << 26)) ^
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((f >>> 11) | (f << 21)) ^
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((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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}
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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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/** Return hash in hex string. */
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hex(): string {
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this.finalize();
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const h0 = this.#h0;
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const h1 = this.#h1;
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const h2 = this.#h2;
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const h3 = this.#h3;
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const h4 = this.#h4;
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const h5 = this.#h5;
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const h6 = this.#h6;
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const h7 = this.#h7;
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let hex =
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HEX_CHARS[(h0 >> 28) & 0x0f] +
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HEX_CHARS[(h0 >> 24) & 0x0f] +
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HEX_CHARS[(h0 >> 20) & 0x0f] +
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HEX_CHARS[(h0 >> 16) & 0x0f] +
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HEX_CHARS[(h0 >> 12) & 0x0f] +
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HEX_CHARS[(h0 >> 8) & 0x0f] +
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HEX_CHARS[(h0 >> 4) & 0x0f] +
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HEX_CHARS[h0 & 0x0f] +
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HEX_CHARS[(h1 >> 28) & 0x0f] +
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HEX_CHARS[(h1 >> 24) & 0x0f] +
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HEX_CHARS[(h1 >> 20) & 0x0f] +
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HEX_CHARS[(h1 >> 16) & 0x0f] +
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HEX_CHARS[(h1 >> 12) & 0x0f] +
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HEX_CHARS[(h1 >> 8) & 0x0f] +
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HEX_CHARS[(h1 >> 4) & 0x0f] +
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HEX_CHARS[h1 & 0x0f] +
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HEX_CHARS[(h2 >> 28) & 0x0f] +
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HEX_CHARS[(h2 >> 24) & 0x0f] +
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HEX_CHARS[(h2 >> 20) & 0x0f] +
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HEX_CHARS[(h2 >> 16) & 0x0f] +
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HEX_CHARS[(h2 >> 12) & 0x0f] +
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HEX_CHARS[(h2 >> 8) & 0x0f] +
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HEX_CHARS[(h2 >> 4) & 0x0f] +
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HEX_CHARS[h2 & 0x0f] +
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HEX_CHARS[(h3 >> 28) & 0x0f] +
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HEX_CHARS[(h3 >> 24) & 0x0f] +
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HEX_CHARS[(h3 >> 20) & 0x0f] +
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HEX_CHARS[(h3 >> 16) & 0x0f] +
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HEX_CHARS[(h3 >> 12) & 0x0f] +
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HEX_CHARS[(h3 >> 8) & 0x0f] +
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HEX_CHARS[(h3 >> 4) & 0x0f] +
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HEX_CHARS[h3 & 0x0f] +
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HEX_CHARS[(h4 >> 28) & 0x0f] +
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HEX_CHARS[(h4 >> 24) & 0x0f] +
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HEX_CHARS[(h4 >> 20) & 0x0f] +
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HEX_CHARS[(h4 >> 16) & 0x0f] +
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HEX_CHARS[(h4 >> 12) & 0x0f] +
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HEX_CHARS[(h4 >> 8) & 0x0f] +
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HEX_CHARS[(h4 >> 4) & 0x0f] +
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HEX_CHARS[h4 & 0x0f] +
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HEX_CHARS[(h5 >> 28) & 0x0f] +
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HEX_CHARS[(h5 >> 24) & 0x0f] +
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HEX_CHARS[(h5 >> 20) & 0x0f] +
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HEX_CHARS[(h5 >> 16) & 0x0f] +
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HEX_CHARS[(h5 >> 12) & 0x0f] +
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HEX_CHARS[(h5 >> 8) & 0x0f] +
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HEX_CHARS[(h5 >> 4) & 0x0f] +
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HEX_CHARS[h5 & 0x0f] +
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HEX_CHARS[(h6 >> 28) & 0x0f] +
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HEX_CHARS[(h6 >> 24) & 0x0f] +
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HEX_CHARS[(h6 >> 20) & 0x0f] +
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HEX_CHARS[(h6 >> 16) & 0x0f] +
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HEX_CHARS[(h6 >> 12) & 0x0f] +
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HEX_CHARS[(h6 >> 8) & 0x0f] +
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HEX_CHARS[(h6 >> 4) & 0x0f] +
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HEX_CHARS[h6 & 0x0f];
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if (!this.#is224) {
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hex +=
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HEX_CHARS[(h7 >> 28) & 0x0f] +
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HEX_CHARS[(h7 >> 24) & 0x0f] +
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HEX_CHARS[(h7 >> 20) & 0x0f] +
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HEX_CHARS[(h7 >> 16) & 0x0f] +
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HEX_CHARS[(h7 >> 12) & 0x0f] +
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HEX_CHARS[(h7 >> 8) & 0x0f] +
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HEX_CHARS[(h7 >> 4) & 0x0f] +
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HEX_CHARS[h7 & 0x0f];
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}
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return hex;
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}
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/** Return hash in hex string. */
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toString(): string {
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return this.hex();
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}
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/** Return hash in integer array. */
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digest(): number[] {
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this.finalize();
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const h0 = this.#h0;
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const h1 = this.#h1;
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const h2 = this.#h2;
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const h3 = this.#h3;
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const h4 = this.#h4;
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const h5 = this.#h5;
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const h6 = this.#h6;
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const h7 = this.#h7;
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const arr = [
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(h0 >> 24) & 0xff,
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(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;
|
|
}
|
|
|
|
/** Return hash in integer array. */
|
|
array(): number[] {
|
|
return this.digest();
|
|
}
|
|
|
|
/** Return hash in ArrayBuffer. */
|
|
arrayBuffer(): ArrayBuffer {
|
|
this.finalize();
|
|
|
|
const buffer = new ArrayBuffer(this.#is224 ? 28 : 32);
|
|
const 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;
|
|
}
|
|
}
|
|
|
|
export class HmacSha256 extends Sha256 {
|
|
#inner: boolean;
|
|
#is224: boolean;
|
|
#oKeyPad: number[];
|
|
#sharedMemory: boolean;
|
|
|
|
constructor(secretKey: Message, is224 = false, sharedMemory = false) {
|
|
super(is224, sharedMemory);
|
|
|
|
let key: number[] | Uint8Array | undefined;
|
|
if (typeof secretKey === "string") {
|
|
const bytes: number[] = [];
|
|
const length = secretKey.length;
|
|
let index = 0;
|
|
for (let i = 0; i < length; ++i) {
|
|
let code = secretKey.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) | (secretKey.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;
|
|
} else {
|
|
if (secretKey instanceof ArrayBuffer) {
|
|
key = new Uint8Array(secretKey);
|
|
} else {
|
|
key = secretKey;
|
|
}
|
|
}
|
|
|
|
if (key.length > 64) {
|
|
key = new Sha256(is224, true).update(key).array();
|
|
}
|
|
|
|
const oKeyPad: number[] = [];
|
|
const iKeyPad: number[] = [];
|
|
for (let i = 0; i < 64; ++i) {
|
|
const b = key[i] || 0;
|
|
oKeyPad[i] = 0x5c ^ b;
|
|
iKeyPad[i] = 0x36 ^ b;
|
|
}
|
|
|
|
this.update(iKeyPad);
|
|
this.#oKeyPad = oKeyPad;
|
|
this.#inner = true;
|
|
this.#is224 = is224;
|
|
this.#sharedMemory = sharedMemory;
|
|
}
|
|
|
|
protected finalize(): void {
|
|
super.finalize();
|
|
if (this.#inner) {
|
|
this.#inner = false;
|
|
const innerHash = this.array();
|
|
super.init(this.#is224, this.#sharedMemory);
|
|
this.update(this.#oKeyPad);
|
|
this.update(innerHash);
|
|
super.finalize();
|
|
}
|
|
}
|
|
}
|