1/** 2 * [js-sha256]{@link https://github.com/emn178/js-sha256} 3 * 4 * @version 0.9.0 5 * @author Chen, Yi-Cyuan [[email protected]] 6 * @copyright Chen, Yi-Cyuan 2014-2017 7 * @license MIT 8 */ 9/*jslint bitwise: true */ 10(function () { 11 'use strict'; 12 13 var ERROR = 'input is invalid type'; 14 var WINDOW = typeof window === 'object'; 15 var root = WINDOW ? window : {}; 16 if (root.JS_SHA256_NO_WINDOW) { 17 WINDOW = false; 18 } 19 var WEB_WORKER = !WINDOW && typeof self === 'object'; 20 var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node; 21 if (NODE_JS) { 22 root = global; 23 } else if (WEB_WORKER) { 24 root = self; 25 } 26 var COMMON_JS = !root.JS_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports; 27 var AMD = typeof define === 'function' && define.amd; 28 var ARRAY_BUFFER = !root.JS_SHA256_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined'; 29 var HEX_CHARS = '0123456789abcdef'.split(''); 30 var EXTRA = [-2147483648, 8388608, 32768, 128]; 31 var SHIFT = [24, 16, 8, 0]; 32 var K = [ 33 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 34 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 35 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 36 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 37 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 38 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 39 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3, 40 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 41 ]; 42 var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer']; 43 44 var blocks = []; 45 46 if (root.JS_SHA256_NO_NODE_JS || !Array.isArray) { 47 Array.isArray = function (obj) { 48 return Object.prototype.toString.call(obj) === '[object Array]'; 49 }; 50 } 51 52 if (ARRAY_BUFFER && (root.JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW || !ArrayBuffer.isView)) { 53 ArrayBuffer.isView = function (obj) { 54 return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer; 55 }; 56 } 57 58 var createOutputMethod = function (outputType, is224) { 59 return function (message) { 60 return new Sha256(is224, true).update(message)[outputType](); 61 }; 62 }; 63 64 var createMethod = function (is224) { 65 var method = createOutputMethod('hex', is224); 66 if (NODE_JS) { 67 method = nodeWrap(method, is224); 68 } 69 method.create = function () { 70 return new Sha256(is224); 71 }; 72 method.update = function (message) { 73 return method.create().update(message); 74 }; 75 for (var i = 0; i < OUTPUT_TYPES.length; ++i) { 76 var type = OUTPUT_TYPES[i]; 77 method[type] = createOutputMethod(type, is224); 78 } 79 return method; 80 }; 81 82 var nodeWrap = function (method, is224) { 83 var crypto = eval("require('crypto')"); 84 var Buffer = eval("require('buffer').Buffer"); 85 var algorithm = is224 ? 'sha224' : 'sha256'; 86 var nodeMethod = function (message) { 87 if (typeof message === 'string') { 88 return crypto.createHash(algorithm).update(message, 'utf8').digest('hex'); 89 } else { 90 if (message === null || message === undefined) { 91 throw new Error(ERROR); 92 } else if (message.constructor === ArrayBuffer) { 93 message = new Uint8Array(message); 94 } 95 } 96 if (Array.isArray(message) || ArrayBuffer.isView(message) || 97 message.constructor === Buffer) { 98 return crypto.createHash(algorithm).update(new Buffer(message)).digest('hex'); 99 } else { 100 return method(message); 101 } 102 }; 103 return nodeMethod; 104 }; 105 106 var createHmacOutputMethod = function (outputType, is224) { 107 return function (key, message) { 108 return new HmacSha256(key, is224, true).update(message)[outputType](); 109 }; 110 }; 111 112 var createHmacMethod = function (is224) { 113 var method = createHmacOutputMethod('hex', is224); 114 method.create = function (key) { 115 return new HmacSha256(key, is224); 116 }; 117 method.update = function (key, message) { 118 return method.create(key).update(message); 119 }; 120 for (var i = 0; i < OUTPUT_TYPES.length; ++i) { 121 var type = OUTPUT_TYPES[i]; 122 method[type] = createHmacOutputMethod(type, is224); 123 } 124 return method; 125 }; 126 127 function Sha256(is224, sharedMemory) { 128 if (sharedMemory) { 129 blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3]
129= 130 blocks[4] = blocks[5] = blocks[6] = blocks[7] = 131 blocks[8] = blocks[9] = blocks[10] = blocks[11] = 132 blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0; 133 this.blocks = blocks; 134 } else { 135 this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]; 136 } 137 138 if (is224) { 139 this.h0 = 0xc1059ed8; 140 this.h1 = 0x367cd507; 141 this.h2 = 0x3070dd17; 142 this.h3 = 0xf70e5939; 143 this.h4 = 0xffc00b31; 144 this.h5 = 0x68581511; 145 this.h6 = 0x64f98fa7; 146 this.h7 = 0xbefa4fa4; 147 } else { // 256 148 this.h0 = 0x6a09e667; 149 this.h1 = 0xbb67ae85; 150 this.h2 = 0x3c6ef372; 151 this.h3 = 0xa54ff53a; 152 this.h4 = 0x510e527f; 153 this.h5 = 0x9b05688c; 154 this.h6 = 0x1f83d9ab; 155 this.h7 = 0x5be0cd19; 156 } 157 158 this.block = this.start = this.bytes = this.hBytes = 0; 159 this.finalized = this.hashed = false; 160 this.first = true; 161 this.is224 = is224; 162 } 163 164 Sha256.prototype.update = function (message) { 165 if (this.finalized) { 166 return; 167 } 168 var notString, type = typeof message; 169 if (type !== 'string') { 170 if (type === 'object') { 171 if (message === null) { 172 throw new Error(ERROR); 173 } else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) { 174 message = new Uint8Array(message); 175 } else if (!Array.isArray(message)) { 176 if (!ARRAY_BUFFER || !ArrayBuffer.isView(message)) { 177 throw new Error(ERROR); 178 } 179 } 180 } else { 181 throw new Error(ERROR); 182 } 183 notString = true; 184 } 185 var code, index = 0, i, length = message.length, blocks = this.blocks; 186 187 while (index < length) { 188 if (this.hashed) { 189 this.hashed = false; 190 blocks[0] = this.block; 191 blocks[16] = blocks[1] = blocks[2] = blocks[3] = 192 blocks[4] = blocks[5] = blocks[6] = blocks[7] = 193 blocks[8] = blocks[9] = blocks[10] = blocks[11] = 194 blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0; 195 } 196 197 if (notString) { 198 for (i = this.start; index < length && i < 64; ++index) { 199 blocks[i >> 2] |= message[index] << SHIFT[i++ & 3]; 200 } 201 } else { 202 for (i = this.start; index < length && i < 64; ++index) { 203 code = message.charCodeAt(index); 204 if (code < 0x80) { 205 blocks[i >> 2] |= code << SHIFT[i++ & 3]; 206 } else if (code < 0x800) { 207 blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3]; 208 blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; 209 } else if (code < 0xd800 || code >= 0xe000) { 210 blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3]; 211 blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3]; 212 blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; 213 } else { 214 code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff)); 215 blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3]; 216 blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3]; 217 blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3]; 218 blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3]; 219 } 220 } 221 } 222 223 this.lastByteIndex = i; 224 this.bytes += i - this.start; 225 if (i >= 64) { 226 this.block = blocks[16]; 227 this.start = i - 64; 228 this.hash(); 229 this.hashed = true; 230 } else { 231 this.start = i; 232 } 233 } 234 if (this.bytes > 4294967295) { 235 this.hBytes += this.bytes / 4294967296 << 0; 236 this.bytes = this.bytes % 4294967296; 237 } 238 return this; 239 }; 240 241 Sha256.prototype.finalize = function () { 242 if (this.finalized) { 243 return; 244 } 245 this.finalized = true; 246 var blocks = this.blocks, i = this.lastByteIndex; 247 blocks[16] = this.block; 248 blocks[i >> 2] |= EXTRA[i & 3]; 249 this.block = blocks[16]; 250 if (i >= 56) { 251 if (!this.hashed) { 252 this.hash(); 253 } 254 blocks[0] = this.block;
255 blocks[16] = blocks[1] = blocks[2] = blocks[3] = 256 blocks[4] = blocks[5] = blocks[6] = blocks[7] = 257 blocks[8] = blocks[9] = blocks[10] = blocks[11] = 258 blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0; 259 } 260 blocks[14] = this.hBytes << 3 | this.bytes >>> 29; 261 blocks[15] = this.bytes << 3; 262 this.hash(); 263 }; 264 265 Sha256.prototype.hash = function () { 266 var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6, 267 h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc; 268 269 for (j = 16; j < 64; ++j) { 270 // rightrotate 271 t1 = blocks[j - 15]; 272 s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3); 273 t1 = blocks[j - 2]; 274 s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10); 275 blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0; 276 } 277 278 bc = b & c; 279 for (j = 0; j < 64; j += 4) { 280 if (this.first) { 281 if (this.is224) { 282 ab = 300032; 283 t1 = blocks[0] - 1413257819; 284 h = t1 - 150054599 << 0; 285 d = t1 + 24177077 << 0; 286 } else { 287 ab = 704751109; 288 t1 = blocks[0] - 210244248; 289 h = t1 - 1521486534 << 0; 290 d = t1 + 143694565 << 0; 291 } 292 this.first = false; 293 } else { 294 s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10)); 295 s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7)); 296 ab = a & b; 297 maj = ab ^ (a & c) ^ bc; 298 ch = (e & f) ^ (~e & g); 299 t1 = h + s1 + ch + K[j] + blocks[j]; 300 t2 = s0 + maj; 301 h = d + t1 << 0; 302 d = t1 + t2 << 0; 303 } 304 s0 = ((d >>> 2) | (d << 30)) ^ ((d >>> 13) | (d << 19)) ^ ((d >>> 22) | (d << 10)); 305 s1 = ((h >>> 6) | (h << 26)) ^ ((h >>> 11) | (h << 21)) ^ ((h >>> 25) | (h << 7)); 306 da = d & a; 307 maj = da ^ (d & b) ^ ab; 308 ch = (h & e) ^ (~h & f); 309 t1 = g + s1 + ch + K[j + 1] + blocks[j + 1]; 310 t2 = s0 + maj; 311 g = c + t1 << 0; 312 c = t1 + t2 << 0; 313 s0 = ((c >>> 2) | (c << 30)) ^ ((c >>> 13) | (c << 19)) ^ ((c >>> 22) | (c << 10)); 314 s1 = ((g >>> 6) | (g << 26)) ^ ((g >>> 11) | (g << 21)) ^ ((g >>> 25) | (g << 7)); 315 cd = c & d; 316 maj = cd ^ (c & a) ^ da; 317 ch = (g & h) ^ (~g & e); 318 t1 = f + s1 + ch + K[j + 2] + blocks[j + 2]; 319 t2 = s0 + maj; 320 f = b + t1 << 0; 321 b = t1 + t2 << 0; 322 s0 = ((b >>> 2) | (b << 30)) ^ ((b >>> 13) | (b << 19)) ^ ((b >>> 22) | (b << 10)); 323 s1 = ((f >>> 6) | (f << 26)) ^ ((f >>> 11) | (f << 21)) ^ ((f >>> 25) | (f << 7)); 324 bc = b & c; 325 maj = bc ^ (b & d) ^ cd; 326 ch = (f & g) ^ (~f & h); 327 t1 = e + s1 + ch + K[j + 3] + blocks[j + 3]; 328 t2 = s0 + maj; 329 e = a + t1 << 0; 330 a = t1 + t2 << 0; 331 } 332 333 this.h0 = this.h0 + a << 0; 334 this.h1 = this.h1 + b << 0; 335 this.h2 = this.h2 + c << 0; 336 this.h3 = this.h3 + d << 0; 337 this.h4 = this.h4 + e << 0; 338 this.h5 = this.h5 + f << 0; 339 this.h6 = this.h6 + g << 0; 340 this.h7 = this.h7 + h << 0; 341 }; 342 343 Sha256.prototype.hex = function () { 344 this.finalize(); 345 346 var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5, 347 h6 = this.h6, h7 = this.h7; 348 349 var hex = HEX_CHARS[(h0 >> 28) & 0x0F] + HEX_CHARS[(h0 >> 24) & 0x0F] + 350 HEX_CHARS[(h0 >> 20) & 0x0F] + HEX_CHARS[(h0 >> 16) & 0x0F] + 351 HEX_CHARS[(h0 >> 12) & 0x0F] + HEX_CHARS[(h0 >> 8) & 0x0F] + 352 HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] + 353 HEX_CHARS[(h1 >> 28) & 0x0F] + HEX_CHARS[(h1 >> 24) & 0x0F] + 354 HEX_CHARS[(h1 >> 20) & 0x0F] + HEX_CHARS[(h1 >> 16) & 0x0F] + 355 HEX_CHARS[(h1 >> 12) & 0x0F] + HEX_CHARS[(h1 >> 8) & 0x0F] + 356 HEX_CHARS[(h1 >> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] + 357 HEX_CHARS[(h2 >> 28) & 0x0F] + HEX_CHARS[(h2 >> 24) & 0x0F] + 358 HEX_CHARS[(h2 >> 20) & 0x0F] + HEX_CHARS[(h2 >> 16) & 0x0F] + 359 HEX_CHARS[(h2 >> 12) & 0x0F] + HEX_CHARS[(h2 >> 8) & 0x0F] + 360 HEX_CHARS[(h2 >> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] + 361 HEX_CHARS[(h3 >> 28) & 0x0F] + HEX_CHARS[(h3 >> 24) & 0x0F] + 362 HEX_CHARS[(h3 >> 20) & 0x0F] + HEX_CHARS[(h3 >> 16) & 0x0F] + 363 HEX_CHARS[(h3 >> 12) & 0x0F] + HEX_CHARS[(h3 >> 8) & 0x0F] + 364 HEX_CHARS[(h3 >> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] + 365 HEX_CHARS[(h4 >> 28) & 0x0F] + HEX_CHARS[(h4 >> 24) & 0x0F] + 366 HEX_CHARS[(h4 >> 20) & 0x0F] + HEX_CHARS[(h4 >> 16) & 0x0F] + 367 HEX_CHARS[(h4 >> 12) & 0x0F] + HEX_CHARS[(h4 >> 8) & 0x0F] + 368 HEX_CHARS[(h4 >> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] + 369 HEX_CHARS[(h5 >> 28) & 0x0F] + HEX_CHARS[(h5 >> 24) & 0x0F] + 370 HEX_CHARS[(h5 >> 20) & 0x0F] + HEX_CHARS[(h5 >> 16) & 0x0F] + 371 HEX_CHARS[(h5 >> 12) & 0x0F] + HEX_CHARS[(h5 >> 8) & 0x0F] + 372 HEX_CHARS[(h5 >> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] + 373 HEX_CHARS[(h6 >> 28) & 0x0F] + HEX_CHARS[(h6 >> 24) & 0x0F] + 374 HEX_CHARS[(h6 >> 20) & 0x0F] + HEX_CHARS[(h6 >> 16) & 0x0F] + 375 HEX_CHARS[(h6 >> 12) & 0x0F] + HEX_CHARS[(h6 >> 8) & 0x0F] + 376 HEX_CHARS[(h6 >> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F]; 377 if (!this.is224) { 378 hex += HEX_CHARS[(h7 >> 28) & 0x0F] + HEX_CHARS[(h7 >> 24) & 0x0F] + 379 HEX_CHARS[(h7 >> 20) & 0x0F] + HEX_CHARS[(h7 >> 16) & 0x0F] + 380 HEX_CHARS[(h7 >> 12) & 0x0F] + HEX_CHARS[(h7 >> 8) & 0x0F] + 381 HEX_CHARS[(h7 >> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F]; 382 } 383 return hex; 384 }; 385 386 Sha256.prototype.toString = Sha256.prototype.hex; 387 388 Sha256.prototype.digest = function () { 389 this.finalize(); 390 391 var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5, 392 h6 = this.h6, h7 = this.h7; 393 394 var arr = [ 395 (h0 >> 24) & 0xFF, (h0 >> 16) & 0xFF, (h0 >> 8) & 0xFF, h0 & 0xFF, 396 (h1 >> 24) & 0xFF, (h1 >> 16) & 0xFF, (h1 >> 8) & 0xFF, h1 & 0xFF, 397 (h2 >> 24) & 0xFF, (h2 >> 16) & 0xFF, (h2 >> 8) & 0xFF, h2 & 0xFF, 398 (h3 >> 24) & 0xFF, (h3 >> 16) & 0xFF, (h3 >> 8) & 0xFF, h3 & 0xFF, 399 (h4 >> 24) & 0xFF, (h4 >> 16) & 0xFF, (h4 >> 8) & 0xFF, h4 & 0xFF, 400 (h5 >> 24) & 0xFF, (h5 >> 16) & 0xFF, (h5 >> 8) & 0xFF, h5 & 0xFF, 401 (h6 >> 24) & 0xFF, (h6 >> 16) & 0xFF, (h6 >> 8) & 0xFF, h6 & 0xFF 402 ]; 403 if (!this.is224) { 404 arr.push((h7 >> 24) & 0xFF, (h7 >> 16) & 0xFF, (h7 >> 8) & 0xFF, h7 & 0xFF); 405 } 406 return arr; 407 }; 408 409 Sha256.prototype.array = Sha256.prototype.digest; 410 411 Sha256.prototype.arrayBuffer = function () { 412 this.finalize(); 413 414 var buffer = new ArrayBuffer(this.is224 ? 28 : 32); 415 var dataView = new DataView(buffer); 416 dataView.setUint32(0, this.h0); 417 dataView.setUint32(4, this.h1); 418 dataView.setUint32(8, this.h2); 419 dataView.setUint32(12, this.h3); 420 dataView.setUint32(16, this.h4); 421 dataView.setUint32(20, this.h5); 422 dataView.setUint32(24, this.h6); 423 if (!this.is224) { 424 dataView.setUint32(28, this.h7); 425 } 426 return buffer; 427 }; 428 429 function HmacSha256(key, is224, sharedMemory) { 430 var i, type = typeof key; 431 if (type === 'string') { 432 var bytes = [], length = key.length, index = 0, code; 433 for (i = 0; i < length; ++i) {
434 code = key.charCodeAt(i); 435 if (code < 0x80) { 436 bytes[index++] = code; 437 } else if (code < 0x800) { 438 bytes[index++] = (0xc0 | (code >> 6)); 439 bytes[index++] = (0x80 | (code & 0x3f)); 440 } else if (code < 0xd800 || code >= 0xe000) { 441 bytes[index++] = (0xe0 | (code >> 12)); 442 bytes[index++] = (0x80 | ((code >> 6) & 0x3f)); 443 bytes[index++] = (0x80 | (code & 0x3f)); 444 } else { 445 code = 0x10000 + (((code & 0x3ff) << 10) | (key.charCodeAt(++i) & 0x3ff)); 446 bytes[index++] = (0xf0 | (code >> 18)); 447 bytes[index++] = (0x80 | ((code >> 12) & 0x3f)); 448 bytes[index++] = (0x80 | ((code >> 6) & 0x3f)); 449 bytes[index++] = (0x80 | (code & 0x3f)); 450 } 451 } 452 key = bytes; 453 } else { 454 if (type === 'object') { 455 if (key === null) { 456 throw new Error(ERROR); 457 } else if (ARRAY_BUFFER && key.constructor === ArrayBuffer) { 458 key = new Uint8Array(key); 459 } else if (!Array.isArray(key)) { 460 if (!ARRAY_BUFFER || !ArrayBuffer.isView(key)) { 461 throw new Error(ERROR); 462 } 463 } 464 } else { 465 throw new Error(ERROR); 466 } 467 } 468 469 if (key.length > 64) { 470 key = (new Sha256(is224, true)).update(key).array(); 471 } 472 473 var oKeyPad = [], iKeyPad = []; 474 for (i = 0; i < 64; ++i) { 475 var b = key[i] || 0; 476 oKeyPad[i] = 0x5c ^ b; 477 iKeyPad[i] = 0x36 ^ b; 478 } 479 480 Sha256.call(this, is224, sharedMemory); 481 482 this.update(iKeyPad); 483 this.oKeyPad = oKeyPad; 484 this.inner = true; 485 this.sharedMemory = sharedMemory; 486 } 487 HmacSha256.prototype = new Sha256(); 488 489 HmacSha256.prototype.finalize = function () { 490 Sha256.prototype.finalize.call(this); 491 if (this.inner) { 492 this.inner = false; 493 var innerHash = this.array(); 494 Sha256.call(this, this.is224, this.sharedMemory); 495 this.update(this.oKeyPad); 496 this.update(innerHash); 497 Sha256.prototype.finalize.call(this); 498 } 499 }; 500 501 var exports = createMethod(); 502 exports.sha256 = exports; 503 exports.sha224 = createMethod(true); 504 exports.sha256.hmac = createHmacMethod(); 505 exports.sha224.hmac = createHmacMethod(true); 506 507 if (COMMON_JS) { 508 module.exports = exports; 509 } else { 510 root.sha256 = exports.sha256; 511 root.sha224 = exports.sha224; 512 if (AMD) { 513 define(function () { 514 return exports; 515 }); 516 } 517 } 518})();
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.