crypto-aes.html (18687B)
1 <!DOCTYPE html> 2 <head> 3 <!-- 4 Copyright (C) 2007 Apple Inc. All rights reserved. 5 6 Redistribution and use in source and binary forms, with or without 7 modification, are permitted provided that the following conditions 8 are met: 9 1. Redistributions of source code must retain the above copyright 10 notice, this list of conditions and the following disclaimer. 11 2. Redistributions in binary form must reproduce the above copyright 12 notice, this list of conditions and the following disclaimer in the 13 documentation and/or other materials provided with the distribution. 14 15 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 16 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 19 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 23 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 --> 27 28 <title>SunSpider crypto-aes</title> 29 30 </head> 31 32 <body> 33 <h3>crypto-aes</h3> 34 <div id="console"> 35 </div> 36 37 <script> 38 39 var _sunSpiderStartDate = new Date(); 40 41 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 42 43 /* 44 * AES Cipher function: encrypt 'input' with Rijndael algorithm 45 * 46 * takes byte-array 'input' (16 bytes) 47 * 2D byte-array key schedule 'w' (Nr+1 x Nb bytes) 48 * 49 * applies Nr rounds (10/12/14) using key schedule w for 'add round key' stage 50 * 51 * returns byte-array encrypted value (16 bytes) 52 */ 53 function Cipher(input, w) { // main Cipher function [§5.1] 54 var Nb = 4; // block size (in words): no of columns in state (fixed at 4 for AES) 55 var Nr = w.length/Nb - 1; // no of rounds: 10/12/14 for 128/192/256-bit keys 56 57 var state = [[],[],[],[]]; // initialise 4xNb byte-array 'state' with input [§3.4] 58 for (var i=0; i<4*Nb; i++) state[i%4][Math.floor(i/4)] = input[i]; 59 60 state = AddRoundKey(state, w, 0, Nb); 61 62 for (var round=1; round<Nr; round++) { 63 state = SubBytes(state, Nb); 64 state = ShiftRows(state, Nb); 65 state = MixColumns(state, Nb); 66 state = AddRoundKey(state, w, round, Nb); 67 } 68 69 state = SubBytes(state, Nb); 70 state = ShiftRows(state, Nb); 71 state = AddRoundKey(state, w, Nr, Nb); 72 73 var output = new Array(4*Nb); // convert state to 1-d array before returning [§3.4] 74 for (var i=0; i<4*Nb; i++) output[i] = state[i%4][Math.floor(i/4)]; 75 return output; 76 } 77 78 79 function SubBytes(s, Nb) { // apply SBox to state S [§5.1.1] 80 for (var r=0; r<4; r++) { 81 for (var c=0; c<Nb; c++) s[r][c] = Sbox[s[r][c]]; 82 } 83 return s; 84 } 85 86 87 function ShiftRows(s, Nb) { // shift row r of state S left by r bytes [§5.1.2] 88 var t = new Array(4); 89 for (var r=1; r<4; r++) { 90 for (var c=0; c<4; c++) t[c] = s[r][(c+r)%Nb]; // shift into temp copy 91 for (var c=0; c<4; c++) s[r][c] = t[c]; // and copy back 92 } // note that this will work for Nb=4,5,6, but not 7,8 (always 4 for AES): 93 return s; // see fp.gladman.plus.com/cryptography_technology/rijndael/aes.spec.311.pdf 94 } 95 96 97 function MixColumns(s, Nb) { // combine bytes of each col of state S [§5.1.3] 98 for (var c=0; c<4; c++) { 99 var a = new Array(4); // 'a' is a copy of the current column from 's' 100 var b = new Array(4); // 'b' is a•{02} in GF(2^8) 101 for (var i=0; i<4; i++) { 102 a[i] = s[i][c]; 103 b[i] = s[i][c]&0x80 ? s[i][c]<<1 ^ 0x011b : s[i][c]<<1; 104 } 105 // a[n] ^ b[n] is a•{03} in GF(2^8) 106 s[0][c] = b[0] ^ a[1] ^ b[1] ^ a[2] ^ a[3]; // 2*a0 + 3*a1 + a2 + a3 107 s[1][c] = a[0] ^ b[1] ^ a[2] ^ b[2] ^ a[3]; // a0 * 2*a1 + 3*a2 + a3 108 s[2][c] = a[0] ^ a[1] ^ b[2] ^ a[3] ^ b[3]; // a0 + a1 + 2*a2 + 3*a3 109 s[3][c] = a[0] ^ b[0] ^ a[1] ^ a[2] ^ b[3]; // 3*a0 + a1 + a2 + 2*a3 110 } 111 return s; 112 } 113 114 115 function AddRoundKey(state, w, rnd, Nb) { // xor Round Key into state S [§5.1.4] 116 for (var r=0; r<4; r++) { 117 for (var c=0; c<Nb; c++) state[r][c] ^= w[rnd*4+c][r]; 118 } 119 return state; 120 } 121 122 123 function KeyExpansion(key) { // generate Key Schedule (byte-array Nr+1 x Nb) from Key [§5.2] 124 var Nb = 4; // block size (in words): no of columns in state (fixed at 4 for AES) 125 var Nk = key.length/4 // key length (in words): 4/6/8 for 128/192/256-bit keys 126 var Nr = Nk + 6; // no of rounds: 10/12/14 for 128/192/256-bit keys 127 128 var w = new Array(Nb*(Nr+1)); 129 var temp = new Array(4); 130 131 for (var i=0; i<Nk; i++) { 132 var r = [key[4*i], key[4*i+1], key[4*i+2], key[4*i+3]]; 133 w[i] = r; 134 } 135 136 for (var i=Nk; i<(Nb*(Nr+1)); i++) { 137 w[i] = new Array(4); 138 for (var t=0; t<4; t++) temp[t] = w[i-1][t]; 139 if (i % Nk == 0) { 140 temp = SubWord(RotWord(temp)); 141 for (var t=0; t<4; t++) temp[t] ^= Rcon[i/Nk][t]; 142 } else if (Nk > 6 && i%Nk == 4) { 143 temp = SubWord(temp); 144 } 145 for (var t=0; t<4; t++) w[i][t] = w[i-Nk][t] ^ temp[t]; 146 } 147 148 return w; 149 } 150 151 function SubWord(w) { // apply SBox to 4-byte word w 152 for (var i=0; i<4; i++) w[i] = Sbox[w[i]]; 153 return w; 154 } 155 156 function RotWord(w) { // rotate 4-byte word w left by one byte 157 w[4] = w[0]; 158 for (var i=0; i<4; i++) w[i] = w[i+1]; 159 return w; 160 } 161 162 163 // Sbox is pre-computed multiplicative inverse in GF(2^8) used in SubBytes and KeyExpansion [§5.1.1] 164 var Sbox = [0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0xd7,0xab,0x76, 165 0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0xa4,0x72,0xc0, 166 0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0xd8,0x31,0x15, 167 0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x27,0xb2,0x75, 168 0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0xe3,0x2f,0x84, 169 0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x4c,0x58,0xcf, 170 0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x3c,0x9f,0xa8, 171 0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0xff,0xf3,0xd2, 172 0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x5d,0x19,0x73, 173 0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x5e,0x0b,0xdb, 174 0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x95,0xe4,0x79, 175 0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x7a,0xae,0x08, 176 0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0xbd,0x8b,0x8a, 177 0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0xc1,0x1d,0x9e, 178 0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x55,0x28,0xdf, 179 0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x54,0xbb,0x16]; 180 181 // Rcon is Round Constant used for the Key Expansion [1st col is 2^(r-1) in GF(2^8)] [§5.2] 182 var Rcon = [ [0x00, 0x00, 0x00, 0x00], 183 [0x01, 0x00, 0x00, 0x00], 184 [0x02, 0x00, 0x00, 0x00], 185 [0x04, 0x00, 0x00, 0x00], 186 [0x08, 0x00, 0x00, 0x00], 187 [0x10, 0x00, 0x00, 0x00], 188 [0x20, 0x00, 0x00, 0x00], 189 [0x40, 0x00, 0x00, 0x00], 190 [0x80, 0x00, 0x00, 0x00], 191 [0x1b, 0x00, 0x00, 0x00], 192 [0x36, 0x00, 0x00, 0x00] ]; 193 194 195 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 196 197 /* 198 * Use AES to encrypt 'plaintext' with 'password' using 'nBits' key, in 'Counter' mode of operation 199 * - see http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf 200 * for each block 201 * - outputblock = cipher(counter, key) 202 * - cipherblock = plaintext xor outputblock 203 */ 204 function AESEncryptCtr(plaintext, password, nBits) { 205 if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows 128/192/256 bit keys 206 207 // for this example script, generate the key by applying Cipher to 1st 16/24/32 chars of password; 208 // for real-world applications, a more secure approach would be to hash the password e.g. with SHA-1 209 var nBytes = nBits/8; // no bytes in key 210 var pwBytes = new Array(nBytes); 211 for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; 212 var key = Cipher(pwBytes, KeyExpansion(pwBytes)); 213 key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long 214 215 // initialise counter block (NIST SP800-38A §B.2): millisecond time-stamp for nonce in 1st 8 bytes, 216 // block counter in 2nd 8 bytes 217 var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES 218 var counterBlock = new Array(blockSize); // block size fixed at 16 bytes / 128 bits (Nb=4) for AES 219 var nonce = (new Date()).getTime(); // milliseconds since 1-Jan-1970 220 221 // encode nonce in two stages to cater for JavaScript 32-bit limit on bitwise ops 222 for (var i=0; i<4; i++) counterBlock[i] = (nonce >>> i*8) & 0xff; 223 for (var i=0; i<4; i++) counterBlock[i+4] = (nonce/0x100000000 >>> i*8) & 0xff; 224 225 // generate key schedule - an expansion of the key into distinct Key Rounds for each round 226 var keySchedule = KeyExpansion(key); 227 228 var blockCount = Math.ceil(plaintext.length/blockSize); 229 var ciphertext = new Array(blockCount); // ciphertext as array of strings 230 231 for (var b=0; b<blockCount; b++) { 232 // set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes) 233 // again done in two stages for 32-bit ops 234 for (var c=0; c<4; c++) counterBlock[15-c] = (b >>> c*8) & 0xff; 235 for (var c=0; c<4; c++) counterBlock[15-c-4] = (b/0x100000000 >>> c*8) 236 237 var cipherCntr = Cipher(counterBlock, keySchedule); // -- encrypt counter block -- 238 239 // calculate length of final block: 240 var blockLength = b<blockCount-1 ? blockSize : (plaintext.length-1)%blockSize+1; 241 242 var ct = ''; 243 for (var i=0; i<blockLength; i++) { // -- xor plaintext with ciphered counter byte-by-byte -- 244 var plaintextByte = plaintext.charCodeAt(b*blockSize+i); 245 var cipherByte = plaintextByte ^ cipherCntr[i]; 246 ct += String.fromCharCode(cipherByte); 247 } 248 // ct is now ciphertext for this block 249 250 ciphertext[b] = escCtrlChars(ct); // escape troublesome characters in ciphertext 251 } 252 253 // convert the nonce to a string to go on the front of the ciphertext 254 var ctrTxt = ''; 255 for (var i=0; i<8; i++) ctrTxt += String.fromCharCode(counterBlock[i]); 256 ctrTxt = escCtrlChars(ctrTxt); 257 258 // use '-' to separate blocks, use Array.join to concatenate arrays of strings for efficiency 259 return ctrTxt + '-' + ciphertext.join('-'); 260 } 261 262 263 /* 264 * Use AES to decrypt 'ciphertext' with 'password' using 'nBits' key, in Counter mode of operation 265 * 266 * for each block 267 * - outputblock = cipher(counter, key) 268 * - cipherblock = plaintext xor outputblock 269 */ 270 function AESDecryptCtr(ciphertext, password, nBits) { 271 if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows 128/192/256 bit keys 272 273 var nBytes = nBits/8; // no bytes in key 274 var pwBytes = new Array(nBytes); 275 for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; 276 var pwKeySchedule = KeyExpansion(pwBytes); 277 var key = Cipher(pwBytes, pwKeySchedule); 278 key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long 279 280 var keySchedule = KeyExpansion(key); 281 282 ciphertext = ciphertext.split('-'); // split ciphertext into array of block-length strings 283 284 // recover nonce from 1st element of ciphertext 285 var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES 286 var counterBlock = new Array(blockSize); 287 var ctrTxt = unescCtrlChars(ciphertext[0]); 288 for (var i=0; i<8; i++) counterBlock[i] = ctrTxt.charCodeAt(i); 289 290 var plaintext = new Array(ciphertext.length-1); 291 292 for (var b=1; b<ciphertext.length; b++) { 293 // set counter (block #) in last 8 bytes of counter block (leaving nonce in 1st 8 bytes) 294 for (var c=0; c<4; c++) counterBlock[15-c] = ((b-1) >>> c*8) & 0xff; 295 for (var c=0; c<4; c++) counterBlock[15-c-4] = ((b/0x100000000-1) >>> c*8) & 0xff; 296 297 var cipherCntr = Cipher(counterBlock, keySchedule); // encrypt counter block 298 299 ciphertext[b] = unescCtrlChars(ciphertext[b]); 300 301 var pt = ''; 302 for (var i=0; i<ciphertext[b].length; i++) { 303 // -- xor plaintext with ciphered counter byte-by-byte -- 304 var ciphertextByte = ciphertext[b].charCodeAt(i); 305 var plaintextByte = ciphertextByte ^ cipherCntr[i]; 306 pt += String.fromCharCode(plaintextByte); 307 } 308 // pt is now plaintext for this block 309 310 plaintext[b-1] = pt; // b-1 'cos no initial nonce block in plaintext 311 } 312 313 return plaintext.join(''); 314 } 315 316 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 317 318 function escCtrlChars(str) { // escape control chars which might cause problems handling ciphertext 319 return str.replace(/[\0\t\n\v\f\r\xa0'"!-]/g, function(c) { return '!' + c.charCodeAt(0) + '!'; }); 320 } // \xa0 to cater for bug in Firefox; include '-' to leave it free for use as a block marker 321 322 function unescCtrlChars(str) { // unescape potentially problematic control characters 323 return str.replace(/!\d\d?\d?!/g, function(c) { return String.fromCharCode(c.slice(1,-1)); }); 324 } 325 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 326 327 /* 328 * if escCtrlChars()/unescCtrlChars() still gives problems, use encodeBase64()/decodeBase64() instead 329 */ 330 var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; 331 332 function encodeBase64(str) { // http://tools.ietf.org/html/rfc4648 333 var o1, o2, o3, h1, h2, h3, h4, bits, i=0, enc=''; 334 335 str = encodeUTF8(str); // encode multi-byte chars into UTF-8 for byte-array 336 337 do { // pack three octets into four hexets 338 o1 = str.charCodeAt(i++); 339 o2 = str.charCodeAt(i++); 340 o3 = str.charCodeAt(i++); 341 342 bits = o1<<16 | o2<<8 | o3; 343 344 h1 = bits>>18 & 0x3f; 345 h2 = bits>>12 & 0x3f; 346 h3 = bits>>6 & 0x3f; 347 h4 = bits & 0x3f; 348 349 // end of string? index to '=' in b64 350 if (isNaN(o3)) h4 = 64; 351 if (isNaN(o2)) h3 = 64; 352 353 // use hexets to index into b64, and append result to encoded string 354 enc += b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4); 355 } while (i < str.length); 356 357 return enc; 358 } 359 360 function decodeBase64(str) { 361 var o1, o2, o3, h1, h2, h3, h4, bits, i=0, enc=''; 362 363 do { // unpack four hexets into three octets using index points in b64 364 h1 = b64.indexOf(str.charAt(i++)); 365 h2 = b64.indexOf(str.charAt(i++)); 366 h3 = b64.indexOf(str.charAt(i++)); 367 h4 = b64.indexOf(str.charAt(i++)); 368 369 bits = h1<<18 | h2<<12 | h3<<6 | h4; 370 371 o1 = bits>>16 & 0xff; 372 o2 = bits>>8 & 0xff; 373 o3 = bits & 0xff; 374 375 if (h3 == 64) enc += String.fromCharCode(o1); 376 else if (h4 == 64) enc += String.fromCharCode(o1, o2); 377 else enc += String.fromCharCode(o1, o2, o3); 378 } while (i < str.length); 379 380 return decodeUTF8(enc); // decode UTF-8 byte-array back to Unicode 381 } 382 383 function encodeUTF8(str) { // encode multi-byte string into utf-8 multiple single-byte characters 384 str = str.replace( 385 /[\u0080-\u07ff]/g, // U+0080 - U+07FF = 2-byte chars 386 function(c) { 387 var cc = c.charCodeAt(0); 388 return String.fromCharCode(0xc0 | cc>>6, 0x80 | cc&0x3f); } 389 ); 390 str = str.replace( 391 /[\u0800-\uffff]/g, // U+0800 - U+FFFF = 3-byte chars 392 function(c) { 393 var cc = c.charCodeAt(0); 394 return String.fromCharCode(0xe0 | cc>>12, 0x80 | cc>>6&0x3F, 0x80 | cc&0x3f); } 395 ); 396 return str; 397 } 398 399 function decodeUTF8(str) { // decode utf-8 encoded string back into multi-byte characters 400 str = str.replace( 401 /[\u00c0-\u00df][\u0080-\u00bf]/g, // 2-byte chars 402 function(c) { 403 var cc = (c.charCodeAt(0)&0x1f)<<6 | c.charCodeAt(1)&0x3f; 404 return String.fromCharCode(cc); } 405 ); 406 str = str.replace( 407 /[\u00e0-\u00ef][\u0080-\u00bf][\u0080-\u00bf]/g, // 3-byte chars 408 function(c) { 409 var cc = (c.charCodeAt(0)&0x0f)<<12 | (c.charCodeAt(1)&0x3f<<6) | c.charCodeAt(2)&0x3f; 410 return String.fromCharCode(cc); } 411 ); 412 return str; 413 } 414 415 416 function byteArrayToHexStr(b) { // convert byte array to hex string for displaying test vectors 417 var s = ''; 418 for (var i=0; i<b.length; i++) s += b[i].toString(16) + ' '; 419 return s; 420 } 421 422 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ 423 424 425 var plainText = "ROMEO: But, soft! what light through yonder window breaks?\n\ 426 It is the east, and Juliet is the sun.\n\ 427 Arise, fair sun, and kill the envious moon,\n\ 428 Who is already sick and pale with grief,\n\ 429 That thou her maid art far more fair than she:\n\ 430 Be not her maid, since she is envious;\n\ 431 Her vestal livery is but sick and green\n\ 432 And none but fools do wear it; cast it off.\n\ 433 It is my lady, O, it is my love!\n\ 434 O, that she knew she were!\n\ 435 She speaks yet she says nothing: what of that?\n\ 436 Her eye discourses; I will answer it.\n\ 437 I am too bold, 'tis not to me she speaks:\n\ 438 Two of the fairest stars in all the heaven,\n\ 439 Having some business, do entreat her eyes\n\ 440 To twinkle in their spheres till they return.\n\ 441 What if her eyes were there, they in her head?\n\ 442 The brightness of her cheek would shame those stars,\n\ 443 As daylight doth a lamp; her eyes in heaven\n\ 444 Would through the airy region stream so bright\n\ 445 That birds would sing and think it were not night.\n\ 446 See, how she leans her cheek upon her hand!\n\ 447 O, that I were a glove upon that hand,\n\ 448 That I might touch that cheek!\n\ 449 JULIET: Ay me!\n\ 450 ROMEO: She speaks:\n\ 451 O, speak again, bright angel! for thou art\n\ 452 As glorious to this night, being o'er my head\n\ 453 As is a winged messenger of heaven\n\ 454 Unto the white-upturned wondering eyes\n\ 455 Of mortals that fall back to gaze on him\n\ 456 When he bestrides the lazy-pacing clouds\n\ 457 And sails upon the bosom of the air."; 458 459 var password = "O Romeo, Romeo! wherefore art thou Romeo?"; 460 461 var cipherText = AESEncryptCtr(plainText, password, 256); 462 var decryptedText = AESDecryptCtr(cipherText, password, 256); 463 464 465 var _sunSpiderInterval = new Date() - _sunSpiderStartDate; 466 467 document.getElementById("console").innerHTML = _sunSpiderInterval; 468 </script> 469 470 471 </body> 472 </html>