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| 1 <html> |
| 2 <head> |
| 3 <script src="../htmlrunner.js"></script> |
| 4 <script> |
| 5 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - */ |
| 6 |
| 7 /* |
| 8 * AES Cipher function: encrypt 'input' with Rijndael algorithm |
| 9 * |
| 10 * takes byte-array 'input' (16 bytes) |
| 11 * 2D byte-array key schedule 'w' (Nr+1 x Nb bytes) |
| 12 * |
| 13 * applies Nr rounds (10/12/14) using key schedule w for 'add round key' stage |
| 14 * |
| 15 * returns byte-array encrypted value (16 bytes) |
| 16 */ |
| 17 function Cipher(input, w) { // main Cipher function [§5.1] |
| 18 var Nb = 4; // block size (in words): no of columns in state (fi
xed at 4 for AES) |
| 19 var Nr = w.length/Nb - 1; // no of rounds: 10/12/14 for 128/192/256-bit keys |
| 20 |
| 21 var state = [[],[],[],[]]; // initialise 4xNb byte-array 'state' with input [
§3.4] |
| 22 for (var i=0; i<4*Nb; i++) state[i%4][Math.floor(i/4)] = input[i]; |
| 23 |
| 24 state = AddRoundKey(state, w, 0, Nb); |
| 25 |
| 26 for (var round=1; round<Nr; round++) { |
| 27 state = SubBytes(state, Nb); |
| 28 state = ShiftRows(state, Nb); |
| 29 state = MixColumns(state, Nb); |
| 30 state = AddRoundKey(state, w, round, Nb); |
| 31 } |
| 32 |
| 33 state = SubBytes(state, Nb); |
| 34 state = ShiftRows(state, Nb); |
| 35 state = AddRoundKey(state, w, Nr, Nb); |
| 36 |
| 37 var output = new Array(4*Nb); // convert state to 1-d array before returning
[§3.4] |
| 38 for (var i=0; i<4*Nb; i++) output[i] = state[i%4][Math.floor(i/4)]; |
| 39 return output; |
| 40 } |
| 41 |
| 42 |
| 43 function SubBytes(s, Nb) { // apply SBox to state S [§5.1.1] |
| 44 for (var r=0; r<4; r++) { |
| 45 for (var c=0; c<Nb; c++) s[r][c] = Sbox[s[r][c]]; |
| 46 } |
| 47 return s; |
| 48 } |
| 49 |
| 50 |
| 51 function ShiftRows(s, Nb) { // shift row r of state S left by r bytes [§5.1.2
] |
| 52 var t = new Array(4); |
| 53 for (var r=1; r<4; r++) { |
| 54 for (var c=0; c<4; c++) t[c] = s[r][(c+r)%Nb]; // shift into temp copy |
| 55 for (var c=0; c<4; c++) s[r][c] = t[c]; // and copy back |
| 56 } // note that this will work for Nb=4,5,6, but not 7,8 (always 4 for
AES): |
| 57 return s; // see fp.gladman.plus.com/cryptography_technology/rijndael/aes.spe
c.311.pdf |
| 58 } |
| 59 |
| 60 |
| 61 function MixColumns(s, Nb) { // combine bytes of each col of state S [§5.1.3] |
| 62 for (var c=0; c<4; c++) { |
| 63 var a = new Array(4); // 'a' is a copy of the current column from 's' |
| 64 var b = new Array(4); // 'b' is a•{02} in GF(2^8) |
| 65 for (var i=0; i<4; i++) { |
| 66 a[i] = s[i][c]; |
| 67 b[i] = s[i][c]&0x80 ? s[i][c]<<1 ^ 0x011b : s[i][c]<<1; |
| 68 } |
| 69 // a[n] ^ b[n] is a•{03} in GF(2^8) |
| 70 s[0][c] = b[0] ^ a[1] ^ b[1] ^ a[2] ^ a[3]; // 2*a0 + 3*a1 + a2 + a3 |
| 71 s[1][c] = a[0] ^ b[1] ^ a[2] ^ b[2] ^ a[3]; // a0 * 2*a1 + 3*a2 + a3 |
| 72 s[2][c] = a[0] ^ a[1] ^ b[2] ^ a[3] ^ b[3]; // a0 + a1 + 2*a2 + 3*a3 |
| 73 s[3][c] = a[0] ^ b[0] ^ a[1] ^ a[2] ^ b[3]; // 3*a0 + a1 + a2 + 2*a3 |
| 74 } |
| 75 return s; |
| 76 } |
| 77 |
| 78 |
| 79 function AddRoundKey(state, w, rnd, Nb) { // xor Round Key into state S [§5.1.4
] |
| 80 for (var r=0; r<4; r++) { |
| 81 for (var c=0; c<Nb; c++) state[r][c] ^= w[rnd*4+c][r]; |
| 82 } |
| 83 return state; |
| 84 } |
| 85 |
| 86 |
| 87 function KeyExpansion(key) { // generate Key Schedule (byte-array Nr+1 x Nb) fr
om Key [§5.2] |
| 88 var Nb = 4; // block size (in words): no of columns in state (fixed
at 4 for AES) |
| 89 var Nk = key.length/4 // key length (in words): 4/6/8 for 128/192/256-bit key
s |
| 90 var Nr = Nk + 6; // no of rounds: 10/12/14 for 128/192/256-bit keys |
| 91 |
| 92 var w = new Array(Nb*(Nr+1)); |
| 93 var temp = new Array(4); |
| 94 |
| 95 for (var i=0; i<Nk; i++) { |
| 96 var r = [key[4*i], key[4*i+1], key[4*i+2], key[4*i+3]]; |
| 97 w[i] = r; |
| 98 } |
| 99 |
| 100 for (var i=Nk; i<(Nb*(Nr+1)); i++) { |
| 101 w[i] = new Array(4); |
| 102 for (var t=0; t<4; t++) temp[t] = w[i-1][t]; |
| 103 if (i % Nk == 0) { |
| 104 temp = SubWord(RotWord(temp)); |
| 105 for (var t=0; t<4; t++) temp[t] ^= Rcon[i/Nk][t]; |
| 106 } else if (Nk > 6 && i%Nk == 4) { |
| 107 temp = SubWord(temp); |
| 108 } |
| 109 for (var t=0; t<4; t++) w[i][t] = w[i-Nk][t] ^ temp[t]; |
| 110 } |
| 111 |
| 112 return w; |
| 113 } |
| 114 |
| 115 function SubWord(w) { // apply SBox to 4-byte word w |
| 116 for (var i=0; i<4; i++) w[i] = Sbox[w[i]]; |
| 117 return w; |
| 118 } |
| 119 |
| 120 function RotWord(w) { // rotate 4-byte word w left by one byte |
| 121 w[4] = w[0]; |
| 122 for (var i=0; i<4; i++) w[i] = w[i+1]; |
| 123 return w; |
| 124 } |
| 125 |
| 126 |
| 127 // Sbox is pre-computed multiplicative inverse in GF(2^8) used in SubBytes and K
eyExpansion [§5.1.1] |
| 128 var Sbox = [0x63,0x7c,0x77,0x7b,0xf2,0x6b,0x6f,0xc5,0x30,0x01,0x67,0x2b,0xfe,0x
d7,0xab,0x76, |
| 129 0xca,0x82,0xc9,0x7d,0xfa,0x59,0x47,0xf0,0xad,0xd4,0xa2,0xaf,0x9c,0x
a4,0x72,0xc0, |
| 130 0xb7,0xfd,0x93,0x26,0x36,0x3f,0xf7,0xcc,0x34,0xa5,0xe5,0xf1,0x71,0x
d8,0x31,0x15, |
| 131 0x04,0xc7,0x23,0xc3,0x18,0x96,0x05,0x9a,0x07,0x12,0x80,0xe2,0xeb,0x
27,0xb2,0x75, |
| 132 0x09,0x83,0x2c,0x1a,0x1b,0x6e,0x5a,0xa0,0x52,0x3b,0xd6,0xb3,0x29,0x
e3,0x2f,0x84, |
| 133 0x53,0xd1,0x00,0xed,0x20,0xfc,0xb1,0x5b,0x6a,0xcb,0xbe,0x39,0x4a,0x
4c,0x58,0xcf, |
| 134 0xd0,0xef,0xaa,0xfb,0x43,0x4d,0x33,0x85,0x45,0xf9,0x02,0x7f,0x50,0x
3c,0x9f,0xa8, |
| 135 0x51,0xa3,0x40,0x8f,0x92,0x9d,0x38,0xf5,0xbc,0xb6,0xda,0x21,0x10,0x
ff,0xf3,0xd2, |
| 136 0xcd,0x0c,0x13,0xec,0x5f,0x97,0x44,0x17,0xc4,0xa7,0x7e,0x3d,0x64,0x
5d,0x19,0x73, |
| 137 0x60,0x81,0x4f,0xdc,0x22,0x2a,0x90,0x88,0x46,0xee,0xb8,0x14,0xde,0x
5e,0x0b,0xdb, |
| 138 0xe0,0x32,0x3a,0x0a,0x49,0x06,0x24,0x5c,0xc2,0xd3,0xac,0x62,0x91,0x
95,0xe4,0x79, |
| 139 0xe7,0xc8,0x37,0x6d,0x8d,0xd5,0x4e,0xa9,0x6c,0x56,0xf4,0xea,0x65,0x
7a,0xae,0x08, |
| 140 0xba,0x78,0x25,0x2e,0x1c,0xa6,0xb4,0xc6,0xe8,0xdd,0x74,0x1f,0x4b,0x
bd,0x8b,0x8a, |
| 141 0x70,0x3e,0xb5,0x66,0x48,0x03,0xf6,0x0e,0x61,0x35,0x57,0xb9,0x86,0x
c1,0x1d,0x9e, |
| 142 0xe1,0xf8,0x98,0x11,0x69,0xd9,0x8e,0x94,0x9b,0x1e,0x87,0xe9,0xce,0x
55,0x28,0xdf, |
| 143 0x8c,0xa1,0x89,0x0d,0xbf,0xe6,0x42,0x68,0x41,0x99,0x2d,0x0f,0xb0,0x
54,0xbb,0x16]; |
| 144 |
| 145 // Rcon is Round Constant used for the Key Expansion [1st col is 2^(r-1) in GF(2
^8)] [§5.2] |
| 146 var Rcon = [ [0x00, 0x00, 0x00, 0x00], |
| 147 [0x01, 0x00, 0x00, 0x00], |
| 148 [0x02, 0x00, 0x00, 0x00], |
| 149 [0x04, 0x00, 0x00, 0x00], |
| 150 [0x08, 0x00, 0x00, 0x00], |
| 151 [0x10, 0x00, 0x00, 0x00], |
| 152 [0x20, 0x00, 0x00, 0x00], |
| 153 [0x40, 0x00, 0x00, 0x00], |
| 154 [0x80, 0x00, 0x00, 0x00], |
| 155 [0x1b, 0x00, 0x00, 0x00], |
| 156 [0x36, 0x00, 0x00, 0x00] ]; |
| 157 |
| 158 |
| 159 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - */ |
| 160 |
| 161 /* |
| 162 * Use AES to encrypt 'plaintext' with 'password' using 'nBits' key, in 'Counter
' mode of operation |
| 163 * - see http://csrc.nist.gov/publications/nistpubs/80
0-38a/sp800-38a.pdf |
| 164 * for each block |
| 165 * - outputblock = cipher(counter, key) |
| 166 * - cipherblock = plaintext xor outputblock |
| 167 */ |
| 168 function AESEncryptCtr(plaintext, password, nBits) { |
| 169 if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows
128/192/256 bit keys |
| 170 |
| 171 // for this example script, generate the key by applying Cipher to 1st 16/24/3
2 chars of password; |
| 172 // for real-world applications, a more secure approach would be to hash the pa
ssword e.g. with SHA-1 |
| 173 var nBytes = nBits/8; // no bytes in key |
| 174 var pwBytes = new Array(nBytes); |
| 175 for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; |
| 176 var key = Cipher(pwBytes, KeyExpansion(pwBytes)); |
| 177 key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long |
| 178 |
| 179 // initialise counter block (NIST SP800-38A §B.2): millisecond time-stamp for
nonce in 1st 8 bytes, |
| 180 // block counter in 2nd 8 bytes |
| 181 var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES |
| 182 var counterBlock = new Array(blockSize); // block size fixed at 16 bytes / 12
8 bits (Nb=4) for AES |
| 183 var nonce = (new Date()).getTime(); // milliseconds since 1-Jan-1970 |
| 184 |
| 185 // encode nonce in two stages to cater for JavaScript 32-bit limit on bitwise
ops |
| 186 for (var i=0; i<4; i++) counterBlock[i] = (nonce >>> i*8) & 0xff; |
| 187 for (var i=0; i<4; i++) counterBlock[i+4] = (nonce/0x100000000 >>> i*8) & 0xff
; |
| 188 |
| 189 // generate key schedule - an expansion of the key into distinct Key Rounds fo
r each round |
| 190 var keySchedule = KeyExpansion(key); |
| 191 |
| 192 var blockCount = Math.ceil(plaintext.length/blockSize); |
| 193 var ciphertext = new Array(blockCount); // ciphertext as array of strings |
| 194 |
| 195 for (var b=0; b<blockCount; b++) { |
| 196 // set counter (block #) in last 8 bytes of counter block (leaving nonce in
1st 8 bytes) |
| 197 // again done in two stages for 32-bit ops |
| 198 for (var c=0; c<4; c++) counterBlock[15-c] = (b >>> c*8) & 0xff; |
| 199 for (var c=0; c<4; c++) counterBlock[15-c-4] = (b/0x100000000 >>> c*8) |
| 200 |
| 201 var cipherCntr = Cipher(counterBlock, keySchedule); // -- encrypt counter b
lock -- |
| 202 |
| 203 // calculate length of final block: |
| 204 var blockLength = b<blockCount-1 ? blockSize : (plaintext.length-1)%blockSiz
e+1; |
| 205 |
| 206 var ct = ''; |
| 207 for (var i=0; i<blockLength; i++) { // -- xor plaintext with ciphered count
er byte-by-byte -- |
| 208 var plaintextByte = plaintext.charCodeAt(b*blockSize+i); |
| 209 var cipherByte = plaintextByte ^ cipherCntr[i]; |
| 210 ct += String.fromCharCode(cipherByte); |
| 211 } |
| 212 // ct is now ciphertext for this block |
| 213 |
| 214 ciphertext[b] = escCtrlChars(ct); // escape troublesome characters in ciphe
rtext |
| 215 } |
| 216 |
| 217 // convert the nonce to a string to go on the front of the ciphertext |
| 218 var ctrTxt = ''; |
| 219 for (var i=0; i<8; i++) ctrTxt += String.fromCharCode(counterBlock[i]); |
| 220 ctrTxt = escCtrlChars(ctrTxt); |
| 221 |
| 222 // use '-' to separate blocks, use Array.join to concatenate arrays of strings
for efficiency |
| 223 return ctrTxt + '-' + ciphertext.join('-'); |
| 224 } |
| 225 |
| 226 |
| 227 /* |
| 228 * Use AES to decrypt 'ciphertext' with 'password' using 'nBits' key, in Counter
mode of operation |
| 229 * |
| 230 * for each block |
| 231 * - outputblock = cipher(counter, key) |
| 232 * - cipherblock = plaintext xor outputblock |
| 233 */ |
| 234 function AESDecryptCtr(ciphertext, password, nBits) { |
| 235 if (!(nBits==128 || nBits==192 || nBits==256)) return ''; // standard allows
128/192/256 bit keys |
| 236 |
| 237 var nBytes = nBits/8; // no bytes in key |
| 238 var pwBytes = new Array(nBytes); |
| 239 for (var i=0; i<nBytes; i++) pwBytes[i] = password.charCodeAt(i) & 0xff; |
| 240 var pwKeySchedule = KeyExpansion(pwBytes); |
| 241 var key = Cipher(pwBytes, pwKeySchedule); |
| 242 key = key.concat(key.slice(0, nBytes-16)); // key is now 16/24/32 bytes long |
| 243 |
| 244 var keySchedule = KeyExpansion(key); |
| 245 |
| 246 ciphertext = ciphertext.split('-'); // split ciphertext into array of block-l
ength strings |
| 247 |
| 248 // recover nonce from 1st element of ciphertext |
| 249 var blockSize = 16; // block size fixed at 16 bytes / 128 bits (Nb=4) for AES |
| 250 var counterBlock = new Array(blockSize); |
| 251 var ctrTxt = unescCtrlChars(ciphertext[0]); |
| 252 for (var i=0; i<8; i++) counterBlock[i] = ctrTxt.charCodeAt(i); |
| 253 |
| 254 var plaintext = new Array(ciphertext.length-1); |
| 255 |
| 256 for (var b=1; b<ciphertext.length; b++) { |
| 257 // set counter (block #) in last 8 bytes of counter block (leaving nonce in
1st 8 bytes) |
| 258 for (var c=0; c<4; c++) counterBlock[15-c] = ((b-1) >>> c*8) & 0xff; |
| 259 for (var c=0; c<4; c++) counterBlock[15-c-4] = ((b/0x100000000-1) >>> c*8) &
0xff; |
| 260 |
| 261 var cipherCntr = Cipher(counterBlock, keySchedule); // encrypt counter bloc
k |
| 262 |
| 263 ciphertext[b] = unescCtrlChars(ciphertext[b]); |
| 264 |
| 265 var pt = ''; |
| 266 for (var i=0; i<ciphertext[b].length; i++) { |
| 267 // -- xor plaintext with ciphered counter byte-by-byte -- |
| 268 var ciphertextByte = ciphertext[b].charCodeAt(i); |
| 269 var plaintextByte = ciphertextByte ^ cipherCntr[i]; |
| 270 pt += String.fromCharCode(plaintextByte); |
| 271 } |
| 272 // pt is now plaintext for this block |
| 273 |
| 274 plaintext[b-1] = pt; // b-1 'cos no initial nonce block in plaintext |
| 275 } |
| 276 |
| 277 return plaintext.join(''); |
| 278 } |
| 279 |
| 280 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - */ |
| 281 |
| 282 function escCtrlChars(str) { // escape control chars which might cause problems
handling ciphertext |
| 283 return str.replace(/[\0\t\n\v\f\r\xa0'"!-]/g, function(c) { return '!' + c.cha
rCodeAt(0) + '!'; }); |
| 284 } // \xa0 to cater for bug in Firefox; include '-' to leave it free for use as
a block marker |
| 285 |
| 286 function unescCtrlChars(str) { // unescape potentially problematic control char
acters |
| 287 return str.replace(/!\d\d?\d?!/g, function(c) { return String.fromCharCode(c.s
lice(1,-1)); }); |
| 288 } |
| 289 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - */ |
| 290 |
| 291 /* |
| 292 * if escCtrlChars()/unescCtrlChars() still gives problems, use encodeBase64()/d
ecodeBase64() instead |
| 293 */ |
| 294 var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; |
| 295 |
| 296 function encodeBase64(str) { // http://tools.ietf.org/html/rfc4648 |
| 297 var o1, o2, o3, h1, h2, h3, h4, bits, i=0, enc=''; |
| 298 |
| 299 str = encodeUTF8(str); // encode multi-byte chars into UTF-8 for byte-array |
| 300 |
| 301 do { // pack three octets into four hexets |
| 302 o1 = str.charCodeAt(i++); |
| 303 o2 = str.charCodeAt(i++); |
| 304 o3 = str.charCodeAt(i++); |
| 305 |
| 306 bits = o1<<16 | o2<<8 | o3; |
| 307 |
| 308 h1 = bits>>18 & 0x3f; |
| 309 h2 = bits>>12 & 0x3f; |
| 310 h3 = bits>>6 & 0x3f; |
| 311 h4 = bits & 0x3f; |
| 312 |
| 313 // end of string? index to '=' in b64 |
| 314 if (isNaN(o3)) h4 = 64; |
| 315 if (isNaN(o2)) h3 = 64; |
| 316 |
| 317 // use hexets to index into b64, and append result to encoded string |
| 318 enc += b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4); |
| 319 } while (i < str.length); |
| 320 |
| 321 return enc; |
| 322 } |
| 323 |
| 324 function decodeBase64(str) { |
| 325 var o1, o2, o3, h1, h2, h3, h4, bits, i=0, enc=''; |
| 326 |
| 327 do { // unpack four hexets into three octets using index points in b64 |
| 328 h1 = b64.indexOf(str.charAt(i++)); |
| 329 h2 = b64.indexOf(str.charAt(i++)); |
| 330 h3 = b64.indexOf(str.charAt(i++)); |
| 331 h4 = b64.indexOf(str.charAt(i++)); |
| 332 |
| 333 bits = h1<<18 | h2<<12 | h3<<6 | h4; |
| 334 |
| 335 o1 = bits>>16 & 0xff; |
| 336 o2 = bits>>8 & 0xff; |
| 337 o3 = bits & 0xff; |
| 338 |
| 339 if (h3 == 64) enc += String.fromCharCode(o1); |
| 340 else if (h4 == 64) enc += String.fromCharCode(o1, o2); |
| 341 else enc += String.fromCharCode(o1, o2, o3); |
| 342 } while (i < str.length); |
| 343 |
| 344 return decodeUTF8(enc); // decode UTF-8 byte-array back to Unicode |
| 345 } |
| 346 |
| 347 function encodeUTF8(str) { // encode multi-byte string into utf-8 multiple sing
le-byte characters |
| 348 str = str.replace( |
| 349 /[\u0080-\u07ff]/g, // U+0080 - U+07FF = 2-byte chars |
| 350 function(c) { |
| 351 var cc = c.charCodeAt(0); |
| 352 return String.fromCharCode(0xc0 | cc>>6, 0x80 | cc&0x3f); } |
| 353 ); |
| 354 str = str.replace( |
| 355 /[\u0800-\uffff]/g, // U+0800 - U+FFFF = 3-byte chars |
| 356 function(c) { |
| 357 var cc = c.charCodeAt(0); |
| 358 return String.fromCharCode(0xe0 | cc>>12, 0x80 | cc>>6&0x3F, 0x80 | cc&0
x3f); } |
| 359 ); |
| 360 return str; |
| 361 } |
| 362 |
| 363 function decodeUTF8(str) { // decode utf-8 encoded string back into multi-byte
characters |
| 364 str = str.replace( |
| 365 /[\u00c0-\u00df][\u0080-\u00bf]/g, // 2-byte chars |
| 366 function(c) { |
| 367 var cc = (c.charCodeAt(0)&0x1f)<<6 | c.charCodeAt(1)&0x3f; |
| 368 return String.fromCharCode(cc); } |
| 369 ); |
| 370 str = str.replace( |
| 371 /[\u00e0-\u00ef][\u0080-\u00bf][\u0080-\u00bf]/g, // 3-byte chars |
| 372 function(c) { |
| 373 var cc = (c.charCodeAt(0)&0x0f)<<12 | (c.charCodeAt(1)&0x3f<<6) | c.char
CodeAt(2)&0x3f; |
| 374 return String.fromCharCode(cc); } |
| 375 ); |
| 376 return str; |
| 377 } |
| 378 |
| 379 |
| 380 function byteArrayToHexStr(b) { // convert byte array to hex string for display
ing test vectors |
| 381 var s = ''; |
| 382 for (var i=0; i<b.length; i++) s += b[i].toString(16) + ' '; |
| 383 return s; |
| 384 } |
| 385 |
| 386 /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - */ |
| 387 |
| 388 |
| 389 var plainText = "ROMEO: But, soft! what light through yonder window breaks?\n\ |
| 390 It is the east, and Juliet is the sun.\n\ |
| 391 Arise, fair sun, and kill the envious moon,\n\ |
| 392 Who is already sick and pale with grief,\n\ |
| 393 That thou her maid art far more fair than she:\n\ |
| 394 Be not her maid, since she is envious;\n\ |
| 395 Her vestal livery is but sick and green\n\ |
| 396 And none but fools do wear it; cast it off.\n\ |
| 397 It is my lady, O, it is my love!\n\ |
| 398 O, that she knew she were!\n\ |
| 399 She speaks yet she says nothing: what of that?\n\ |
| 400 Her eye discourses; I will answer it.\n\ |
| 401 I am too bold, 'tis not to me she speaks:\n\ |
| 402 Two of the fairest stars in all the heaven,\n\ |
| 403 Having some business, do entreat her eyes\n\ |
| 404 To twinkle in their spheres till they return.\n\ |
| 405 What if her eyes were there, they in her head?\n\ |
| 406 The brightness of her cheek would shame those stars,\n\ |
| 407 As daylight doth a lamp; her eyes in heaven\n\ |
| 408 Would through the airy region stream so bright\n\ |
| 409 That birds would sing and think it were not night.\n\ |
| 410 See, how she leans her cheek upon her hand!\n\ |
| 411 O, that I were a glove upon that hand,\n\ |
| 412 That I might touch that cheek!\n\ |
| 413 JULIET: Ay me!\n\ |
| 414 ROMEO: She speaks:\n\ |
| 415 O, speak again, bright angel! for thou art\n\ |
| 416 As glorious to this night, being o'er my head\n\ |
| 417 As is a winged messenger of heaven\n\ |
| 418 Unto the white-upturned wondering eyes\n\ |
| 419 Of mortals that fall back to gaze on him\n\ |
| 420 When he bestrides the lazy-pacing clouds\n\ |
| 421 And sails upon the bosom of the air."; |
| 422 |
| 423 var password = "O Romeo, Romeo! wherefore art thou Romeo?"; |
| 424 var cipherText, decryptedText; |
| 425 |
| 426 window.onload = function(){ startTest("sunspider-crypto-aes", ''); |
| 427 |
| 428 test("AES Encrypt", function(){ |
| 429 cipherText = AESEncryptCtr(plainText, password, 256); |
| 430 }); |
| 431 |
| 432 test("AES Decrypt", function(){ |
| 433 decryptedText = AESDecryptCtr(cipherText, password, 256); |
| 434 |
| 435 if ( decryptedText !== plainText ) |
| 436 throw "Decryption failed."; |
| 437 }); |
| 438 |
| 439 endTest(); }; |
| 440 </script> |
| 441 </head> |
| 442 <body></body> |
| 443 </html> |
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