| // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license. |
| /* |
| * Adapted to deno from: |
| * |
| * [js-sha256]{@link https://github.com/emn178/js-sha256} |
| * |
| * @version 0.9.0 |
| * @author Chen, Yi-Cyuan [emn178@gmail.com] |
| * @copyright Chen, Yi-Cyuan 2014-2017 |
| * @license MIT |
| */ |
| |
| export type Message = string | number[] | ArrayBuffer; |
| |
| const HEX_CHARS = "0123456789abcdef".split(""); |
| const EXTRA = [-2147483648, 8388608, 32768, 128] as const; |
| const SHIFT = [24, 16, 8, 0] as const; |
| // deno-fmt-ignore |
| const K = [ |
| 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, |
| ] as const; |
| |
| const blocks: number[] = []; |
| |
| export class Sha256 { |
| #block!: number; |
| #blocks!: number[]; |
| #bytes!: number; |
| #finalized!: boolean; |
| #first!: boolean; |
| #h0!: number; |
| #h1!: number; |
| #h2!: number; |
| #h3!: number; |
| #h4!: number; |
| #h5!: number; |
| #h6!: number; |
| #h7!: number; |
| #hashed!: boolean; |
| #hBytes!: number; |
| #is224!: boolean; |
| #lastByteIndex = 0; |
| #start!: number; |
| |
| constructor(is224 = false, sharedMemory = false) { |
| this.init(is224, sharedMemory); |
| } |
| |
| protected init(is224: boolean, sharedMemory: boolean): void { |
| if (sharedMemory) { |
| // deno-fmt-ignore |
| 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; |
| this.#blocks = blocks; |
| } else { |
| this.#blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; |
| } |
| |
| if (is224) { |
| this.#h0 = 0xc1059ed8; |
| this.#h1 = 0x367cd507; |
| this.#h2 = 0x3070dd17; |
| this.#h3 = 0xf70e5939; |
| this.#h4 = 0xffc00b31; |
| this.#h5 = 0x68581511; |
| this.#h6 = 0x64f98fa7; |
| this.#h7 = 0xbefa4fa4; |
| } else { |
| // 256 |
| this.#h0 = 0x6a09e667; |
| this.#h1 = 0xbb67ae85; |
| this.#h2 = 0x3c6ef372; |
| this.#h3 = 0xa54ff53a; |
| this.#h4 = 0x510e527f; |
| this.#h5 = 0x9b05688c; |
| this.#h6 = 0x1f83d9ab; |
| this.#h7 = 0x5be0cd19; |
| } |
| |
| this.#block = this.#start = this.#bytes = this.#hBytes = 0; |
| this.#finalized = this.#hashed = false; |
| this.#first = true; |
| this.#is224 = is224; |
| } |
| |
| /** Update hash |
| * |
| * @param message The message you want to hash. |
| */ |
| update(message: Message): this { |
| if (this.#finalized) { |
| return this; |
| } |
| |
| let msg: string | number[] | Uint8Array | undefined; |
| if (message instanceof ArrayBuffer) { |
| msg = new Uint8Array(message); |
| } else { |
| msg = message; |
| } |
| |
| let index = 0; |
| const length = msg.length; |
| const blocks = this.#blocks; |
| |
| while (index < length) { |
| let i: number; |
| if (this.#hashed) { |
| this.#hashed = false; |
| blocks[0] = this.#block; |
| // deno-fmt-ignore |
| 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; |
| } |
| |
| if (typeof msg !== "string") { |
| for (i = this.#start; index < length && i < 64; ++index) { |
| blocks[i >> 2] |= msg[index] << SHIFT[i++ & 3]; |
| } |
| } else { |
| for (i = this.#start; index < length && i < 64; ++index) { |
| let code = msg.charCodeAt(index); |
| if (code < 0x80) { |
| blocks[i >> 2] |= code << SHIFT[i++ & 3]; |
| } else if (code < 0x800) { |
| blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; |
| } else if (code < 0xd800 || code >= 0xe000) { |
| blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; |
| } else { |
| code = 0x10000 + |
| (((code & 0x3ff) << 10) | (msg.charCodeAt(++index) & 0x3ff)); |
| blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3]; |
| blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; |
| } |
| } |
| } |
| |
| this.#lastByteIndex = i; |
| this.#bytes += i - this.#start; |
| if (i >= 64) { |
| this.#block = blocks[16]; |
| this.#start = i - 64; |
| this.hash(); |
| this.#hashed = true; |
| } else { |
| this.#start = i; |
| } |
| } |
| if (this.#bytes > 4294967295) { |
| this.#hBytes += (this.#bytes / 4294967296) << 0; |
| this.#bytes = this.#bytes % 4294967296; |
| } |
| return this; |
| } |
| |
| protected finalize(): void { |
| if (this.#finalized) { |
| return; |
| } |
| this.#finalized = true; |
| const blocks = this.#blocks; |
| const i = this.#lastByteIndex; |
| blocks[16] = this.#block; |
| blocks[i >> 2] |= EXTRA[i & 3]; |
| this.#block = blocks[16]; |
| if (i >= 56) { |
| if (!this.#hashed) { |
| this.hash(); |
| } |
| blocks[0] = this.#block; |
| // deno-fmt-ignore |
| 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; |
| } |
| blocks[14] = (this.#hBytes << 3) | (this.#bytes >>> 29); |
| blocks[15] = this.#bytes << 3; |
| this.hash(); |
| } |
| |
| protected hash(): void { |
| let a = this.#h0; |
| let b = this.#h1; |
| let c = this.#h2; |
| let d = this.#h3; |
| let e = this.#h4; |
| let f = this.#h5; |
| let g = this.#h6; |
| let h = this.#h7; |
| const blocks = this.#blocks; |
| let s0: number; |
| let s1: number; |
| let maj: number; |
| let t1: number; |
| let t2: number; |
| let ch: number; |
| let ab: number; |
| let da: number; |
| let cd: number; |
| let bc: number; |
| |
| for (let j = 16; j < 64; ++j) { |
| // rightrotate |
| t1 = blocks[j - 15]; |
| s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3); |
| t1 = blocks[j - 2]; |
| s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ |
| (t1 >>> 10); |
| blocks[j] = (blocks[j - 16] + s0 + blocks[j - 7] + s1) << 0; |
| } |
| |
| bc = b & c; |
| for (let j = 0; j < 64; j += 4) { |
| if (this.#first) { |
| if (this.#is224) { |
| ab = 300032; |
| t1 = blocks[0] - 1413257819; |
| h = (t1 - 150054599) << 0; |
| d = (t1 + 24177077) << 0; |
| } else { |
| ab = 704751109; |
| t1 = blocks[0] - 210244248; |
| h = (t1 - 1521486534) << 0; |
| d = (t1 + 143694565) << 0; |
| } |
| this.#first = false; |
| } else { |
| s0 = ((a >>> 2) | (a << 30)) ^ |
| ((a >>> 13) | (a << 19)) ^ |
| ((a >>> 22) | (a << 10)); |
| s1 = ((e >>> 6) | (e << 26)) ^ |
| ((e >>> 11) | (e << 21)) ^ |
| ((e >>> 25) | (e << 7)); |
| ab = a & b; |
| maj = ab ^ (a & c) ^ bc; |
| ch = (e & f) ^ (~e & g); |
| t1 = h + s1 + ch + K[j] + blocks[j]; |
| t2 = s0 + maj; |
| h = (d + t1) << 0; |
| d = (t1 + t2) << 0; |
| } |
| s0 = ((d >>> 2) | (d << 30)) ^ |
| ((d >>> 13) | (d << 19)) ^ |
| ((d >>> 22) | (d << 10)); |
| s1 = ((h >>> 6) | (h << 26)) ^ |
| ((h >>> 11) | (h << 21)) ^ |
| ((h >>> 25) | (h << 7)); |
| da = d & a; |
| maj = da ^ (d & b) ^ ab; |
| ch = (h & e) ^ (~h & f); |
| t1 = g + s1 + ch + K[j + 1] + blocks[j + 1]; |
| t2 = s0 + maj; |
| g = (c + t1) << 0; |
| c = (t1 + t2) << 0; |
| s0 = ((c >>> 2) | (c << 30)) ^ |
| ((c >>> 13) | (c << 19)) ^ |
| ((c >>> 22) | (c << 10)); |
| s1 = ((g >>> 6) | (g << 26)) ^ |
| ((g >>> 11) | (g << 21)) ^ |
| ((g >>> 25) | (g << 7)); |
| cd = c & d; |
| maj = cd ^ (c & a) ^ da; |
| ch = (g & h) ^ (~g & e); |
| t1 = f + s1 + ch + K[j + 2] + blocks[j + 2]; |
| t2 = s0 + maj; |
| f = (b + t1) << 0; |
| b = (t1 + t2) << 0; |
| s0 = ((b >>> 2) | (b << 30)) ^ |
| ((b >>> 13) | (b << 19)) ^ |
| ((b >>> 22) | (b << 10)); |
| s1 = ((f >>> 6) | (f << 26)) ^ |
| ((f >>> 11) | (f << 21)) ^ |
| ((f >>> 25) | (f << 7)); |
| bc = b & c; |
| maj = bc ^ (b & d) ^ cd; |
| ch = (f & g) ^ (~f & h); |
| t1 = e + s1 + ch + K[j + 3] + blocks[j + 3]; |
| t2 = s0 + maj; |
| e = (a + t1) << 0; |
| a = (t1 + t2) << 0; |
| } |
| |
| this.#h0 = (this.#h0 + a) << 0; |
| this.#h1 = (this.#h1 + b) << 0; |
| this.#h2 = (this.#h2 + c) << 0; |
| this.#h3 = (this.#h3 + d) << 0; |
| this.#h4 = (this.#h4 + e) << 0; |
| this.#h5 = (this.#h5 + f) << 0; |
| this.#h6 = (this.#h6 + g) << 0; |
| this.#h7 = (this.#h7 + h) << 0; |
| } |
| |
| /** Return hash in hex string. */ |
| hex(): string { |
| this.finalize(); |
| |
| const h0 = this.#h0; |
| const h1 = this.#h1; |
| const h2 = this.#h2; |
| const h3 = this.#h3; |
| const h4 = this.#h4; |
| const h5 = this.#h5; |
| const h6 = this.#h6; |
| const h7 = this.#h7; |
| |
| let hex = HEX_CHARS[(h0 >> 28) & 0x0f] + |
| HEX_CHARS[(h0 >> 24) & 0x0f] + |
| HEX_CHARS[(h0 >> 20) & 0x0f] + |
| HEX_CHARS[(h0 >> 16) & 0x0f] + |
| HEX_CHARS[(h0 >> 12) & 0x0f] + |
| HEX_CHARS[(h0 >> 8) & 0x0f] + |
| HEX_CHARS[(h0 >> 4) & 0x0f] + |
| HEX_CHARS[h0 & 0x0f] + |
| HEX_CHARS[(h1 >> 28) & 0x0f] + |
| HEX_CHARS[(h1 >> 24) & 0x0f] + |
| 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; |
| } |
| |
| /** Return hash in hex string. */ |
| toString(): string { |
| return this.hex(); |
| } |
| |
| /** Return hash in integer array. */ |
| digest(): number[] { |
| this.finalize(); |
| |
| const h0 = this.#h0; |
| const h1 = this.#h1; |
| const h2 = this.#h2; |
| const h3 = this.#h3; |
| const h4 = this.#h4; |
| const h5 = this.#h5; |
| const h6 = this.#h6; |
| const h7 = this.#h7; |
| |
| const 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; |
| } |
| |
| /** 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(); |
| } |
| } |
| } |