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+++ b/static/js/jsSHA.js @@ -0,0 +1,1164 @@ +/* A JavaScript implementation of the SHA family of hashes, as defined in FIPS + * PUB 180-2 as well as the corresponding HMAC implementation as defined in + * FIPS PUB 198a + * + * Version 1.3 Copyright Brian Turek 2008-2010 + * Distributed under the BSD License + * See http://jssha.sourceforge.net/ for more information + * + * Several functions taken from Paul Johnson + */ +(function () +{ + /* + * Configurable variables. Defaults typically work + */ + /* Number of Bits Per character (8 for ASCII, 16 for Unicode) */ + var charSize = 8, + /* base-64 pad character. "=" for strict RFC compliance */ + b64pad = "", + /* hex output format. 0 - lowercase; 1 - uppercase */ + hexCase = 0, + + /* + * Int_64 is a object for 2 32-bit numbers emulating a 64-bit number + * + * @constructor + * @param {Number} msint_32 The most significant 32-bits of a 64-bit number + * @param {Number} lsint_32 The least significant 32-bits of a 64-bit number + */ + Int_64 = function (msint_32, lsint_32) + { + this.highOrder = msint_32; + this.lowOrder = lsint_32; + }, + + /* + * Convert a string to an array of big-endian words + * If charSize is ASCII, characters >255 have their hi-byte silently + * ignored. + * + * @param {String} str String to be converted to binary representation + * @return Integer array representation of the parameter + */ + str2binb = function (str) + { + var bin = [], mask = (1 << charSize) - 1, + length = str.length * charSize, i; + + for (i = 0; i < length; i += charSize) + { + bin[i >> 5] |= (str.charCodeAt(i / charSize) & mask) << + (32 - charSize - (i % 32)); + } + + return bin; + }, + + /* + * Convert a hex string to an array of big-endian words + * + * @param {String} str String to be converted to binary representation + * @return Integer array representation of the parameter + */ + hex2binb = function (str) + { + var bin = [], length = str.length, i, num; + + for (i = 0; i < length; i += 2) + { + num = parseInt(str.substr(i, 2), 16); + if (!isNaN(num)) + { + bin[i >> 3] |= num << (24 - (4 * (i % 8))); + } + else + { + return "INVALID HEX STRING"; + } + } + + return bin; + }, + + /* + * Convert an array of big-endian words to a hex string. + * + * @private + * @param {Array} binarray Array of integers to be converted to hexidecimal + * representation + * @return Hexidecimal representation of the parameter in String form + */ + binb2hex = function (binarray) + { + var hex_tab = (hexCase) ? "0123456789ABCDEF" : "0123456789abcdef", + str = "", length = binarray.length * 4, i, srcByte; + + for (i = 0; i < length; i += 1) + { + srcByte = binarray[i >> 2] >> ((3 - (i % 4)) * 8); + str += hex_tab.charAt((srcByte >> 4) & 0xF) + + hex_tab.charAt(srcByte & 0xF); + } + + return str; + }, + + /* + * Convert an array of big-endian words to a base-64 string + * + * @private + * @param {Array} binarray Array of integers to be converted to base-64 + * representation + * @return Base-64 encoded representation of the parameter in String form + */ + binb2b64 = function (binarray) + { + var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + + "0123456789+/", str = "", length = binarray.length * 4, i, j, + triplet; + + for (i = 0; i < length; i += 3) + { + triplet = (((binarray[i >> 2] >> 8 * (3 - i % 4)) & 0xFF) << 16) | + (((binarray[i + 1 >> 2] >> 8 * (3 - (i + 1) % 4)) & 0xFF) << 8) | + ((binarray[i + 2 >> 2] >> 8 * (3 - (i + 2) % 4)) & 0xFF); + for (j = 0; j < 4; j += 1) + { + if (i * 8 + j * 6 <= binarray.length * 32) + { + str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F); + } + else + { + str += b64pad; + } + } + } + return str; + }, + + /* + * The 32-bit implementation of circular rotate left + * + * @private + * @param {Number} x The 32-bit integer argument + * @param {Number} n The number of bits to shift + * @return The x shifted circularly by n bits + */ + rotl_32 = function (x, n) + { + return (x << n) | (x >>> (32 - n)); + }, + + /* + * The 32-bit implementation of circular rotate right + * + * @private + * @param {Number} x The 32-bit integer argument + * @param {Number} n The number of bits to shift + * @return The x shifted circularly by n bits + */ + rotr_32 = function (x, n) + { + return (x >>> n) | (x << (32 - n)); + }, + + /* + * The 64-bit implementation of circular rotate right + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @param {Number} n The number of bits to shift + * @return The x shifted circularly by n bits + */ + rotr_64 = function (x, n) + { + if (n <= 32) + { + return new Int_64( + (x.highOrder >>> n) | (x.lowOrder << (32 - n)), + (x.lowOrder >>> n) | (x.highOrder << (32 - n)) + ); + } + else + { + return new Int_64( + (x.lowOrder >>> n) | (x.highOrder << (32 - n)), + (x.highOrder >>> n) | (x.lowOrder << (32 - n)) + ); + } + }, + + /* + * The 32-bit implementation of shift right + * + * @private + * @param {Number} x The 32-bit integer argument + * @param {Number} n The number of bits to shift + * @return The x shifted by n bits + */ + shr_32 = function (x, n) + { + return x >>> n; + }, + + /* + * The 64-bit implementation of shift right + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @param {Number} n The number of bits to shift + * @return The x shifted by n bits + */ + shr_64 = function (x, n) + { + if (n <= 32) + { + return new Int_64( + x.highOrder >>> n, + x.lowOrder >>> n | (x.highOrder << (32 - n)) + ); + } + else + { + return new Int_64( + 0, + x.highOrder << (32 - n) + ); + } + }, + + /* + * The 32-bit implementation of the NIST specified Parity function + * + * @private + * @param {Number} x The first 32-bit integer argument + * @param {Number} y The second 32-bit integer argument + * @param {Number} z The third 32-bit integer argument + * @return The NIST specified output of the function + */ + parity_32 = function (x, y, z) + { + return x ^ y ^ z; + }, + + /* + * The 32-bit implementation of the NIST specified Ch function + * + * @private + * @param {Number} x The first 32-bit integer argument + * @param {Number} y The second 32-bit integer argument + * @param {Number} z The third 32-bit integer argument + * @return The NIST specified output of the function + */ + ch_32 = function (x, y, z) + { + return (x & y) ^ (~x & z); + }, + + /* + * The 64-bit implementation of the NIST specified Ch function + * + * @private + * @param {Int_64} x The first 64-bit integer argument + * @param {Int_64} y The second 64-bit integer argument + * @param {Int_64} z The third 64-bit integer argument + * @return The NIST specified output of the function + */ + ch_64 = function (x, y, z) + { + return new Int_64( + (x.highOrder & y.highOrder) ^ (~x.highOrder & z.highOrder), + (x.lowOrder & y.lowOrder) ^ (~x.lowOrder & z.lowOrder) + ); + }, + + /* + * The 32-bit implementation of the NIST specified Maj function + * + * @private + * @param {Number} x The first 32-bit integer argument + * @param {Number} y The second 32-bit integer argument + * @param {Number} z The third 32-bit integer argument + * @return The NIST specified output of the function + */ + maj_32 = function (x, y, z) + { + return (x & y) ^ (x & z) ^ (y & z); + }, + + /* + * The 64-bit implementation of the NIST specified Maj function + * + * @private + * @param {Int_64} x The first 64-bit integer argument + * @param {Int_64} y The second 64-bit integer argument + * @param {Int_64} z The third 64-bit integer argument + * @return The NIST specified output of the function + */ + maj_64 = function (x, y, z) + { + return new Int_64( + (x.highOrder & y.highOrder) ^ + (x.highOrder & z.highOrder) ^ + (y.highOrder & z.highOrder), + (x.lowOrder & y.lowOrder) ^ + (x.lowOrder & z.lowOrder) ^ + (y.lowOrder & z.lowOrder) + ); + }, + + /* + * The 32-bit implementation of the NIST specified Sigma0 function + * + * @private + * @param {Number} x The 32-bit integer argument + * @return The NIST specified output of the function + */ + sigma0_32 = function (x) + { + return rotr_32(x, 2) ^ rotr_32(x, 13) ^ rotr_32(x, 22); + }, + + /* + * The 64-bit implementation of the NIST specified Sigma0 function + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @return The NIST specified output of the function + */ + sigma0_64 = function (x) + { + var rotr28 = rotr_64(x, 28), rotr34 = rotr_64(x, 34), + rotr39 = rotr_64(x, 39); + + return new Int_64( + rotr28.highOrder ^ rotr34.highOrder ^ rotr39.highOrder, + rotr28.lowOrder ^ rotr34.lowOrder ^ rotr39.lowOrder); + }, + + /* + * The 32-bit implementation of the NIST specified Sigma1 function + * + * @private + * @param {Number} x The 32-bit integer argument + * @return The NIST specified output of the function + */ + sigma1_32 = function (x) + { + return rotr_32(x, 6) ^ rotr_32(x, 11) ^ rotr_32(x, 25); + }, + + /* + * The 64-bit implementation of the NIST specified Sigma1 function + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @return The NIST specified output of the function + */ + sigma1_64 = function (x) + { + var rotr14 = rotr_64(x, 14), rotr18 = rotr_64(x, 18), + rotr41 = rotr_64(x, 41); + + return new Int_64( + rotr14.highOrder ^ rotr18.highOrder ^ rotr41.highOrder, + rotr14.lowOrder ^ rotr18.lowOrder ^ rotr41.lowOrder); + }, + + /* + * The 32-bit implementation of the NIST specified Gamma0 function + * + * @private + * @param {Number} x The 32-bit integer argument + * @return The NIST specified output of the function + */ + gamma0_32 = function (x) + { + return rotr_32(x, 7) ^ rotr_32(x, 18) ^ shr_32(x, 3); + }, + + /* + * The 64-bit implementation of the NIST specified Gamma0 function + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @return The NIST specified output of the function + */ + gamma0_64 = function (x) + { + var rotr1 = rotr_64(x, 1), rotr8 = rotr_64(x, 8), shr7 = shr_64(x, 7); + + return new Int_64( + rotr1.highOrder ^ rotr8.highOrder ^ shr7.highOrder, + rotr1.lowOrder ^ rotr8.lowOrder ^ shr7.lowOrder + ); + }, + + /* + * The 32-bit implementation of the NIST specified Gamma1 function + * + * @private + * @param {Number} x The 32-bit integer argument + * @return The NIST specified output of the function + */ + gamma1_32 = function (x) + { + return rotr_32(x, 17) ^ rotr_32(x, 19) ^ shr_32(x, 10); + }, + + /* + * The 64-bit implementation of the NIST specified Gamma1 function + * + * @private + * @param {Int_64} x The 64-bit integer argument + * @return The NIST specified output of the function + */ + gamma1_64 = function (x) + { + var rotr19 = rotr_64(x, 19), rotr61 = rotr_64(x, 61), + shr6 = shr_64(x, 6); + + return new Int_64( + rotr19.highOrder ^ rotr61.highOrder ^ shr6.highOrder, + rotr19.lowOrder ^ rotr61.lowOrder ^ shr6.lowOrder + ); + }, + + /* + * Add two 32-bit integers, wrapping at 2^32. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Number} x The first 32-bit integer argument to be added + * @param {Number} y The second 32-bit integer argument to be added + * @return The sum of x + y + */ + safeAdd_32_2 = function (x, y) + { + var lsw = (x & 0xFFFF) + (y & 0xFFFF), + msw = (x >>> 16) + (y >>> 16) + (lsw >>> 16); + + return ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + }, + + /* + * Add four 32-bit integers, wrapping at 2^32. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Number} a The first 32-bit integer argument to be added + * @param {Number} b The second 32-bit integer argument to be added + * @param {Number} c The third 32-bit integer argument to be added + * @param {Number} d The fourth 32-bit integer argument to be added + * @return The sum of a + b + c + d + */ + safeAdd_32_4 = function (a, b, c, d) + { + var lsw = (a & 0xFFFF) + (b & 0xFFFF) + (c & 0xFFFF) + (d & 0xFFFF), + msw = (a >>> 16) + (b >>> 16) + (c >>> 16) + (d >>> 16) + + (lsw >>> 16); + + return ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + }, + + /* + * Add five 32-bit integers, wrapping at 2^32. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Number} a The first 32-bit integer argument to be added + * @param {Number} b The second 32-bit integer argument to be added + * @param {Number} c The third 32-bit integer argument to be added + * @param {Number} d The fourth 32-bit integer argument to be added + * @param {Number} e The fifth 32-bit integer argument to be added + * @return The sum of a + b + c + d + e + */ + safeAdd_32_5 = function (a, b, c, d, e) + { + var lsw = (a & 0xFFFF) + (b & 0xFFFF) + (c & 0xFFFF) + (d & 0xFFFF) + + (e & 0xFFFF), + msw = (a >>> 16) + (b >>> 16) + (c >>> 16) + (d >>> 16) + + (e >>> 16) + (lsw >>> 16); + + return ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + }, + + /* + * Add two 64-bit integers, wrapping at 2^64. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Int_64} x The first 64-bit integer argument to be added + * @param {Int_64} y The second 64-bit integer argument to be added + * @return The sum of x + y + */ + safeAdd_64_2 = function (x, y) + { + var lsw, msw, lowOrder, highOrder; + + lsw = (x.lowOrder & 0xFFFF) + (y.lowOrder & 0xFFFF); + msw = (x.lowOrder >>> 16) + (y.lowOrder >>> 16) + (lsw >>> 16); + lowOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + lsw = (x.highOrder & 0xFFFF) + (y.highOrder & 0xFFFF) + (msw >>> 16); + msw = (x.highOrder >>> 16) + (y.highOrder >>> 16) + (lsw >>> 16); + highOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + return new Int_64(highOrder, lowOrder); + }, + + /* + * Add four 64-bit integers, wrapping at 2^64. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Int_64} a The first 64-bit integer argument to be added + * @param {Int_64} b The second 64-bit integer argument to be added + * @param {Int_64} c The third 64-bit integer argument to be added + * @param {Int_64} d The fouth 64-bit integer argument to be added + * @return The sum of a + b + c + d + */ + safeAdd_64_4 = function (a, b, c, d) + { + var lsw, msw, lowOrder, highOrder; + + lsw = (a.lowOrder & 0xFFFF) + (b.lowOrder & 0xFFFF) + + (c.lowOrder & 0xFFFF) + (d.lowOrder & 0xFFFF); + msw = (a.lowOrder >>> 16) + (b.lowOrder >>> 16) + + (c.lowOrder >>> 16) + (d.lowOrder >>> 16) + (lsw >>> 16); + lowOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + lsw = (a.highOrder & 0xFFFF) + (b.highOrder & 0xFFFF) + + (c.highOrder & 0xFFFF) + (d.highOrder & 0xFFFF) + (msw >>> 16); + msw = (a.highOrder >>> 16) + (b.highOrder >>> 16) + + (c.highOrder >>> 16) + (d.highOrder >>> 16) + (lsw >>> 16); + highOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + return new Int_64(highOrder, lowOrder); + }, + + /* + * Add five 64-bit integers, wrapping at 2^64. This uses 16-bit operations + * internally to work around bugs in some JS interpreters. + * + * @private + * @param {Int_64} a The first 64-bit integer argument to be added + * @param {Int_64} b The second 64-bit integer argument to be added + * @param {Int_64} c The third 64-bit integer argument to be added + * @param {Int_64} d The fouth 64-bit integer argument to be added + * @param {Int_64} e The fouth 64-bit integer argument to be added + * @return The sum of a + b + c + d + e + */ + safeAdd_64_5 = function (a, b, c, d, e) + { + var lsw, msw, lowOrder, highOrder; + + lsw = (a.lowOrder & 0xFFFF) + (b.lowOrder & 0xFFFF) + + (c.lowOrder & 0xFFFF) + (d.lowOrder & 0xFFFF) + + (e.lowOrder & 0xFFFF); + msw = (a.lowOrder >>> 16) + (b.lowOrder >>> 16) + + (c.lowOrder >>> 16) + (d.lowOrder >>> 16) + (e.lowOrder >>> 16) + + (lsw >>> 16); + lowOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + lsw = (a.highOrder & 0xFFFF) + (b.highOrder & 0xFFFF) + + (c.highOrder & 0xFFFF) + (d.highOrder & 0xFFFF) + + (e.highOrder & 0xFFFF) + (msw >>> 16); + msw = (a.highOrder >>> 16) + (b.highOrder >>> 16) + + (c.highOrder >>> 16) + (d.highOrder >>> 16) + + (e.highOrder >>> 16) + (lsw >>> 16); + highOrder = ((msw & 0xFFFF) << 16) | (lsw & 0xFFFF); + + return new Int_64(highOrder, lowOrder); + }, + + /* + * Calculates the SHA-1 hash of the string set at instantiation + * + * @private + * @param {Array} message The binary array representation of the string to + * hash + * @param {Number} messageLen The number of bits in the message + * @return The array of integers representing the SHA-1 hash of message + */ + coreSHA1 = function (message, messageLen) + { + var W = [], a, b, c, d, e, T, ch = ch_32, parity = parity_32, + maj = maj_32, rotl = rotl_32, safeAdd_2 = safeAdd_32_2, i, t, + safeAdd_5 = safeAdd_32_5, appendedMessageLength, + H = [ + 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0 + ], + K = [ + 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999, + 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999, + 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999, + 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999, + 0x5a827999, 0x5a827999, 0x5a827999, 0x5a827999, + 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, + 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, + 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, + 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, + 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, 0x6ed9eba1, + 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, + 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, + 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, + 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, + 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, 0x8f1bbcdc, + 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, + 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, + 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, + 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, + 0xca62c1d6, 0xca62c1d6, 0xca62c1d6, 0xca62c1d6 + ]; + + /* Append '1' at the end of the binary string */ + message[messageLen >> 5] |= 0x80 << (24 - (messageLen % 32)); + /* Append length of binary string in the position such that the new + length is a multiple of 512. Logic does not work for even multiples + of 512 but there can never be even multiples of 512 */ + message[(((messageLen + 65) >> 9) << 4) + 15] = messageLen; + + appendedMessageLength = message.length; + + for (i = 0; i < appendedMessageLength; i += 16) + { + a = H[0]; + b = H[1]; + c = H[2]; + d = H[3]; + e = H[4]; + + for (t = 0; t < 80; t += 1) + { + if (t < 16) + { + W[t] = message[t + i]; + } + else + { + W[t] = rotl(W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16], 1); + } + + if (t < 20) + { + T = safeAdd_5(rotl(a, 5), ch(b, c, d), e, K[t], W[t]); + } + else if (t < 40) + { + T = safeAdd_5(rotl(a, 5), parity(b, c, d), e, K[t], W[t]); + } + else if (t < 60) + { + T = safeAdd_5(rotl(a, 5), maj(b, c, d), e, K[t], W[t]); + } else { + T = safeAdd_5(rotl(a, 5), parity(b, c, d), e, K[t], W[t]); + } + + e = d; + d = c; + c = rotl(b, 30); + b = a; + a = T; + } + + H[0] = safeAdd_2(a, H[0]); + H[1] = safeAdd_2(b, H[1]); + H[2] = safeAdd_2(c, H[2]); + H[3] = safeAdd_2(d, H[3]); + H[4] = safeAdd_2(e, H[4]); + } + + return H; + }, + + /* + * Calculates the desired SHA-2 hash of the string set at instantiation + * + * @private + * @param {Array} The binary array representation of the string to hash + * @param {Number} The number of bits in message + * @param {String} variant The desired SHA-2 variant + * @return The array of integers representing the SHA-2 hash of message + */ + coreSHA2 = function (message, messageLen, variant) + { + var a, b, c, d, e, f, g, h, T1, T2, H, numRounds, lengthPosition, i, t, + binaryStringInc, binaryStringMult, safeAdd_2, safeAdd_4, safeAdd_5, + gamma0, gamma1, sigma0, sigma1, ch, maj, Int, K, W = [], + appendedMessageLength; + + /* Set up the various function handles and variable for the specific + * variant */ + if (variant === "SHA-224" || variant === "SHA-256") + { + /* 32-bit variant */ + numRounds = 64; + lengthPosition = (((messageLen + 65) >> 9) << 4) + 15; + binaryStringInc = 16; + binaryStringMult = 1; + Int = Number; + safeAdd_2 = safeAdd_32_2; + safeAdd_4 = safeAdd_32_4; + safeAdd_5 = safeAdd_32_5; + gamma0 = gamma0_32; + gamma1 = gamma1_32; + sigma0 = sigma0_32; + sigma1 = sigma1_32; + maj = maj_32; + ch = ch_32; + 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 + ]; + + if (variant === "SHA-224") + { + H = [ + 0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, + 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4 + ]; + } + else + { + H = [ + 0x6A09E667, 0xBB67AE85, 0x3C6EF372, 0xA54FF53A, + 0x510E527F, 0x9B05688C, 0x1F83D9AB, 0x5BE0CD19 + ]; + } + } + else if (variant === "SHA-384" || variant === "SHA-512") + { + /* 64-bit variant */ + numRounds = 80; + lengthPosition = (((messageLen + 128) >> 10) << 5) + 31; + binaryStringInc = 32; + binaryStringMult = 2; + Int = Int_64; + safeAdd_2 = safeAdd_64_2; + safeAdd_4 = safeAdd_64_4; + safeAdd_5 = safeAdd_64_5; + gamma0 = gamma0_64; + gamma1 = gamma1_64; + sigma0 = sigma0_64; + sigma1 = sigma1_64; + maj = maj_64; + ch = ch_64; + + K = [ + new Int(0x428a2f98, 0xd728ae22), new Int(0x71374491, 0x23ef65cd), + new Int(0xb5c0fbcf, 0xec4d3b2f), new Int(0xe9b5dba5, 0x8189dbbc), + new Int(0x3956c25b, 0xf348b538), new Int(0x59f111f1, 0xb605d019), + new Int(0x923f82a4, 0xaf194f9b), new Int(0xab1c5ed5, 0xda6d8118), + new Int(0xd807aa98, 0xa3030242), new Int(0x12835b01, 0x45706fbe), + new Int(0x243185be, 0x4ee4b28c), new Int(0x550c7dc3, 0xd5ffb4e2), + new Int(0x72be5d74, 0xf27b896f), new Int(0x80deb1fe, 0x3b1696b1), + new Int(0x9bdc06a7, 0x25c71235), new Int(0xc19bf174, 0xcf692694), + new Int(0xe49b69c1, 0x9ef14ad2), new Int(0xefbe4786, 0x384f25e3), + new Int(0x0fc19dc6, 0x8b8cd5b5), new Int(0x240ca1cc, 0x77ac9c65), + new Int(0x2de92c6f, 0x592b0275), new Int(0x4a7484aa, 0x6ea6e483), + new Int(0x5cb0a9dc, 0xbd41fbd4), new Int(0x76f988da, 0x831153b5), + new Int(0x983e5152, 0xee66dfab), new Int(0xa831c66d, 0x2db43210), + new Int(0xb00327c8, 0x98fb213f), new Int(0xbf597fc7, 0xbeef0ee4), + new Int(0xc6e00bf3, 0x3da88fc2), new Int(0xd5a79147, 0x930aa725), + new Int(0x06ca6351, 0xe003826f), new Int(0x14292967, 0x0a0e6e70), + new Int(0x27b70a85, 0x46d22ffc), new Int(0x2e1b2138, 0x5c26c926), + new Int(0x4d2c6dfc, 0x5ac42aed), new Int(0x53380d13, 0x9d95b3df), + new Int(0x650a7354, 0x8baf63de), new Int(0x766a0abb, 0x3c77b2a8), + new Int(0x81c2c92e, 0x47edaee6), new Int(0x92722c85, 0x1482353b), + new Int(0xa2bfe8a1, 0x4cf10364), new Int(0xa81a664b, 0xbc423001), + new Int(0xc24b8b70, 0xd0f89791), new Int(0xc76c51a3, 0x0654be30), + new Int(0xd192e819, 0xd6ef5218), new Int(0xd6990624, 0x5565a910), + new Int(0xf40e3585, 0x5771202a), new Int(0x106aa070, 0x32bbd1b8), + new Int(0x19a4c116, 0xb8d2d0c8), new Int(0x1e376c08, 0x5141ab53), + new Int(0x2748774c, 0xdf8eeb99), new Int(0x34b0bcb5, 0xe19b48a8), + new Int(0x391c0cb3, 0xc5c95a63), new Int(0x4ed8aa4a, 0xe3418acb), + new Int(0x5b9cca4f, 0x7763e373), new Int(0x682e6ff3, 0xd6b2b8a3), + new Int(0x748f82ee, 0x5defb2fc), new Int(0x78a5636f, 0x43172f60), + new Int(0x84c87814, 0xa1f0ab72), new Int(0x8cc70208, 0x1a6439ec), + new Int(0x90befffa, 0x23631e28), new Int(0xa4506ceb, 0xde82bde9), + new Int(0xbef9a3f7, 0xb2c67915), new Int(0xc67178f2, 0xe372532b), + new Int(0xca273ece, 0xea26619c), new Int(0xd186b8c7, 0x21c0c207), + new Int(0xeada7dd6, 0xcde0eb1e), new Int(0xf57d4f7f, 0xee6ed178), + new Int(0x06f067aa, 0x72176fba), new Int(0x0a637dc5, 0xa2c898a6), + new Int(0x113f9804, 0xbef90dae), new Int(0x1b710b35, 0x131c471b), + new Int(0x28db77f5, 0x23047d84), new Int(0x32caab7b, 0x40c72493), + new Int(0x3c9ebe0a, 0x15c9bebc), new Int(0x431d67c4, 0x9c100d4c), + new Int(0x4cc5d4be, 0xcb3e42b6), new Int(0x597f299c, 0xfc657e2a), + new Int(0x5fcb6fab, 0x3ad6faec), new Int(0x6c44198c, 0x4a475817) + ]; + + if (variant === "SHA-384") + { + H = [ + new Int(0xcbbb9d5d, 0xc1059ed8), new Int(0x0629a292a, 0x367cd507), + new Int(0x9159015a, 0x3070dd17), new Int(0x0152fecd8, 0xf70e5939), + new Int(0x67332667, 0xffc00b31), new Int(0x98eb44a87, 0x68581511), + new Int(0xdb0c2e0d, 0x64f98fa7), new Int(0x047b5481d, 0xbefa4fa4) + ]; + } + else + { + H = [ + new Int(0x6a09e667, 0xf3bcc908), new Int(0xbb67ae85, 0x84caa73b), + new Int(0x3c6ef372, 0xfe94f82b), new Int(0xa54ff53a, 0x5f1d36f1), + new Int(0x510e527f, 0xade682d1), new Int(0x9b05688c, 0x2b3e6c1f), + new Int(0x1f83d9ab, 0xfb41bd6b), new Int(0x5be0cd19, 0x137e2179) + ]; + } + } + + /* Append '1' at the end of the binary string */ + message[messageLen >> 5] |= 0x80 << (24 - messageLen % 32); + /* Append length of binary string in the position such that the new + * length is correct */ + message[lengthPosition] = messageLen; + + appendedMessageLength = message.length; + + for (i = 0; i < appendedMessageLength; i += binaryStringInc) + { + a = H[0]; + b = H[1]; + c = H[2]; + d = H[3]; + e = H[4]; + f = H[5]; + g = H[6]; + h = H[7]; + + for (t = 0; t < numRounds; t += 1) + { + if (t < 16) + { + /* Bit of a hack - for 32-bit, the second term is ignored */ + W[t] = new Int(message[t * binaryStringMult + i], + message[t * binaryStringMult + i + 1]); + } + else + { + W[t] = safeAdd_4( + gamma1(W[t - 2]), W[t - 7], + gamma0(W[t - 15]), W[t - 16] + ); + } + + T1 = safeAdd_5(h, sigma1(e), ch(e, f, g), K[t], W[t]); + T2 = safeAdd_2(sigma0(a), maj(a, b, c)); + h = g; + g = f; + f = e; + e = safeAdd_2(d, T1); + d = c; + c = b; + b = a; + a = safeAdd_2(T1, T2); + } + + H[0] = safeAdd_2(a, H[0]); + H[1] = safeAdd_2(b, H[1]); + H[2] = safeAdd_2(c, H[2]); + H[3] = safeAdd_2(d, H[3]); + H[4] = safeAdd_2(e, H[4]); + H[5] = safeAdd_2(f, H[5]); + H[6] = safeAdd_2(g, H[6]); + H[7] = safeAdd_2(h, H[7]); + } + + switch (variant) + { + case "SHA-224": + return [ + H[0], H[1], H[2], H[3], + H[4], H[5], H[6] + ]; + case "SHA-256": + return H; + case "SHA-384": + return [ + H[0].highOrder, H[0].lowOrder, + H[1].highOrder, H[1].lowOrder, + H[2].highOrder, H[2].lowOrder, + H[3].highOrder, H[3].lowOrder, + H[4].highOrder, H[4].lowOrder, + H[5].highOrder, H[5].lowOrder + ]; + case "SHA-512": + return [ + H[0].highOrder, H[0].lowOrder, + H[1].highOrder, H[1].lowOrder, + H[2].highOrder, H[2].lowOrder, + H[3].highOrder, H[3].lowOrder, + H[4].highOrder, H[4].lowOrder, + H[5].highOrder, H[5].lowOrder, + H[6].highOrder, H[6].lowOrder, + H[7].highOrder, H[7].lowOrder + ]; + default: + /* This should never be reached */ + return []; + } + }, + + /* + * jsSHA is the workhorse of the library. Instantiate it with the string to + * be hashed as the parameter + * + * @constructor + * @param {String} srcString The string to be hashed + * @param {String} inputFormat The format of srcString, ASCII or HEX + */ + jsSHA = function (srcString, inputFormat) + { + + this.sha1 = null; + this.sha224 = null; + this.sha256 = null; + this.sha384 = null; + this.sha512 = null; + + this.strBinLen = null; + this.strToHash = null; + + /* Convert the input string into the correct type */ + if ("HEX" === inputFormat) + { + if (0 !== (srcString.length % 2)) + { + return "TEXT MUST BE IN BYTE INCREMENTS"; + } + this.strBinLen = srcString.length * 4; + this.strToHash = hex2binb(srcString); + } + else if (("ASCII" === inputFormat) || + ('undefined' === typeof(inputFormat))) + { + this.strBinLen = srcString.length * charSize; + this.strToHash = str2binb(srcString); + } + else + { + return "UNKNOWN TEXT INPUT TYPE"; + } + }; + + jsSHA.prototype = { + /* + * Returns the desired SHA hash of the string specified at instantiation + * using the specified parameters + * + * @param {String} variant The desired SHA variant (SHA-1, SHA-224, + * SHA-256, SHA-384, or SHA-512) + * @param {String} format The desired output formatting (B64 or HEX) + * @return The string representation of the hash in the format specified + */ + getHash : function (variant, format) + { + var formatFunc = null, message = this.strToHash.slice(); + + switch (format) + { + case "HEX": + formatFunc = binb2hex; + break; + case "B64": + formatFunc = binb2b64; + break; + default: + return "FORMAT NOT RECOGNIZED"; + } + + switch (variant) + { + case "SHA-1": + if (null === this.sha1) + { + this.sha1 = coreSHA1(message, this.strBinLen); + } + return formatFunc(this.sha1); + case "SHA-224": + if (null === this.sha224) + { + this.sha224 = coreSHA2(message, this.strBinLen, variant); + } + return formatFunc(this.sha224); + case "SHA-256": + if (null === this.sha256) + { + this.sha256 = coreSHA2(message, this.strBinLen, variant); + } + return formatFunc(this.sha256); + case "SHA-384": + if (null === this.sha384) + { + this.sha384 = coreSHA2(message, this.strBinLen, variant); + } + return formatFunc(this.sha384); + case "SHA-512": + if (null === this.sha512) + { + this.sha512 = coreSHA2(message, this.strBinLen, variant); + } + return formatFunc(this.sha512); + default: + return "HASH NOT RECOGNIZED"; + } + }, + + /* + * Returns the desired HMAC of the string specified at instantiation + * using the key and variant param. + * + * @param {String} key The key used to calculate the HMAC + * @param {String} inputFormat The format of key, ASCII or HEX + * @param {String} variant The desired SHA variant (SHA-1, SHA-224, + * SHA-256, SHA-384, or SHA-512) + * @param {String} outputFormat The desired output formatting + * (B64 or HEX) + * @return The string representation of the hash in the format specified + */ + getHMAC : function (key, inputFormat, variant, outputFormat) + { + var formatFunc, keyToUse, blockByteSize, blockBitSize, i, + retVal, lastArrayIndex, keyBinLen, hashBitSize, + keyWithIPad = [], keyWithOPad = []; + + /* Validate the output format selection */ + switch (outputFormat) + { + case "HEX": + formatFunc = binb2hex; + break; + case "B64": + formatFunc = binb2b64; + break; + default: + return "FORMAT NOT RECOGNIZED"; + } + + /* Validate the hash variant selection and set needed variables */ + switch (variant) + { + case "SHA-1": + blockByteSize = 64; + hashBitSize = 160; + break; + case "SHA-224": + blockByteSize = 64; + hashBitSize = 224; + break; + case "SHA-256": + blockByteSize = 64; + hashBitSize = 256; + break; + case "SHA-384": + blockByteSize = 128; + hashBitSize = 384; + break; + case "SHA-512": + blockByteSize = 128; + hashBitSize = 512; + break; + default: + return "HASH NOT RECOGNIZED"; + } + + /* Validate input format selection */ + if ("HEX" === inputFormat) + { + /* Nibbles must come in pairs */ + if (0 !== (key.length % 2)) + { + return "KEY MUST BE IN BYTE INCREMENTS"; + } + keyToUse = hex2binb(key); + keyBinLen = key.length * 4; + } + else if ("ASCII" === inputFormat) + { + keyToUse = str2binb(key); + keyBinLen = key.length * charSize; + } + else + { + return "UNKNOWN KEY INPUT TYPE"; + } + + /* These are used multiple times, calculate and store them */ + blockBitSize = blockByteSize * 8; + lastArrayIndex = (blockByteSize / 4) - 1; + + /* Figure out what to do with the key based on its size relative to + * the hash's block size */ + if (blockByteSize < (keyBinLen / 8)) + { + if ("SHA-1" === variant) + { + keyToUse = coreSHA1(keyToUse, keyBinLen); + } + else + { + keyToUse = coreSHA2(keyToUse, keyBinLen, variant); + } + /* For all variants, the block size is bigger than the output + * size so there will never be a useful byte at the end of the + * string */ + keyToUse[lastArrayIndex] &= 0xFFFFFF00; + } + else if (blockByteSize > (keyBinLen / 8)) + { + /* If the blockByteSize is greater than the key length, there + * will always be at LEAST one "useless" byte at the end of the + * string */ + keyToUse[lastArrayIndex] &= 0xFFFFFF00; + } + + /* Create ipad and opad */ + for (i = 0; i <= lastArrayIndex; i += 1) + { + keyWithIPad[i] = keyToUse[i] ^ 0x36363636; + keyWithOPad[i] = keyToUse[i] ^ 0x5C5C5C5C; + } + + /* Calculate the HMAC */ + if ("SHA-1" === variant) + { + retVal = coreSHA1( + keyWithIPad.concat(this.strToHash), + blockBitSize + this.strBinLen); + retVal = coreSHA1( + keyWithOPad.concat(retVal), + blockBitSize + hashBitSize); + } + else + { + retVal = coreSHA2( + keyWithIPad.concat(this.strToHash), + blockBitSize + this.strBinLen, variant); + retVal = coreSHA2( + keyWithOPad.concat(retVal), + blockBitSize + hashBitSize, variant); + } + + return (formatFunc(retVal)); + } + }; + + window.jsSHA = jsSHA; +}()); diff --git a/static/js/login.js b/static/js/login.js new file mode 100644 index 0000000..cf9ffab --- /dev/null +++ b/static/js/login.js @@ -0,0 +1,62 @@ +$('#login').click(function(ev) { + $('#login').hide(); + $('.login input').prop('disabled', 'disabled'); + ev.preventDefault(); + + var username = $('#username').val(); + var password = $('#password').val(); + + function progress(s) { + $('#progress').text(s); + } + function fail(s) { + progress(s); + $('.login input').prop('disabled', false); + $('#login').show(); + } + /* Request salt+challenge for hashing */ + progress("Obtaining challenge..."); + $.ajax({ type: 'POST', + data: { + username: username + }, + url: '/login', + success: function(challenge) { + if (challenge && challenge.salt && challenge.token) { + progress("HMAC 1"); + var salted = hmac(challenge.salt, password); + progress("HMAC 2"); + var response = hmac(challenge.token, salted); + progress("Sending response"); + $.ajax({ type: 'POST', + data: { + token: challenge.token, + response: response + }, + url: '/login', + success: function(response) { + if (response && response.welcome) { + progress("Welcome to Bitlove!"); + document.location = response.welcome; + } else { + fail((response && response.error) || "Cannot authenticate"); + } + }, + error: function() { + fail("Error sending response"); + } + }); + } else { + fail((challenge && challenge.error) || "Cannot login"); + } + }, + error: function() { + fail("Error obtaining challenge"); + } + }); +}); + +function hmac(key, text) { + var hmac = new jsSHA(text, 'ASCII'); + return hmac.getHMAC(key, 'HEX', 'SHA-1', 'HEX'); +} diff --git a/static/js/signup.js b/static/js/signup.js new file mode 100644 index 0000000..771a761 --- /dev/null +++ b/static/js/signup.js @@ -0,0 +1,18 @@ +var username = $('#username'); +var hint = $('#usernamehint'); +function fixUsername() { + var s = username.val(). + toLowerCase(). + replace(/[^0-9a-z\-_]/g, ""); + + if (s !== username.val()) + username.val(s); + + if (s.length > 0) + hint.text("http://bitlove.org/" + s); + else + hint.text(""); +} +username.bind('change', fixUsername); +username.bind('input', fixUsername); +username.bind('keyup', fixUsername); diff --git a/templates/activate.hamlet b/templates/activate.hamlet new file mode 100644 index 0000000..125b46c --- /dev/null +++ b/templates/activate.hamlet @@ -0,0 +1,16 @@ +$newline always +