Wed, 10 Mar 2010 12:01:15 +0000
Add js/strophe/ directory containing Strophe
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1 | /* |
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2 | * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message |
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3 | * Digest Algorithm, as defined in RFC 1321. |
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4 | * Version 2.1 Copyright (C) Paul Johnston 1999 - 2002. |
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5 | * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet |
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6 | * Distributed under the BSD License |
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7 | * See http://pajhome.org.uk/crypt/md5 for more info. |
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8 | */ |
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9 | |
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10 | /* |
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11 | * Configurable variables. You may need to tweak these to be compatible with |
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12 | * the server-side, but the defaults work in most cases. |
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13 | */ |
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14 | var hexcase = 0; /* hex output format. 0 - lowercase; 1 - uppercase */ |
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15 | var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance */ |
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16 | var chrsz = 8; /* bits per input character. 8 - ASCII; 16 - Unicode */ |
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17 | |
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18 | /* |
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19 | * These are the functions you'll usually want to call |
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20 | * They take string arguments and return either hex or base-64 encoded strings |
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21 | */ |
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22 | function hex_md5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));} |
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23 | function b64_md5(s){ return binl2b64(core_md5(str2binl(s), s.length * chrsz));} |
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24 | function str_md5(s){ return binl2str(core_md5(str2binl(s), s.length * chrsz));} |
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25 | function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); } |
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26 | function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); } |
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27 | function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); } |
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28 | |
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29 | /* |
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30 | * Perform a simple self-test to see if the VM is working |
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31 | */ |
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32 | function md5_vm_test() |
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33 | { |
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34 | return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; |
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35 | } |
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36 | |
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37 | /* |
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38 | * Calculate the MD5 of an array of little-endian words, and a bit length |
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39 | */ |
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40 | function core_md5(x, len) |
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41 | { |
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42 | /* append padding */ |
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43 | x[len >> 5] |= 0x80 << ((len) % 32); |
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44 | x[(((len + 64) >>> 9) << 4) + 14] = len; |
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45 | |
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46 | var a = 1732584193; |
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47 | var b = -271733879; |
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48 | var c = -1732584194; |
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49 | var d = 271733878; |
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50 | |
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51 | var olda, oldb, oldc, oldd; |
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52 | for(var i = 0; i < x.length; i += 16) |
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53 | { |
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54 | olda = a; |
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55 | oldb = b; |
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56 | oldc = c; |
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57 | oldd = d; |
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58 | |
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59 | a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936); |
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60 | d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586); |
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61 | c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819); |
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62 | b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330); |
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63 | a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897); |
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64 | d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426); |
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65 | c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341); |
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66 | b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983); |
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67 | a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416); |
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68 | d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417); |
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69 | c = md5_ff(c, d, a, b, x[i+10], 17, -42063); |
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70 | b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162); |
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71 | a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682); |
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72 | d = md5_ff(d, a, b, c, x[i+13], 12, -40341101); |
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73 | c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290); |
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74 | b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329); |
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75 | |
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76 | a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510); |
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77 | d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632); |
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78 | c = md5_gg(c, d, a, b, x[i+11], 14, 643717713); |
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79 | b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302); |
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80 | a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691); |
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81 | d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083); |
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82 | c = md5_gg(c, d, a, b, x[i+15], 14, -660478335); |
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83 | b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848); |
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84 | a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438); |
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85 | d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690); |
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86 | c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961); |
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87 | b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501); |
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88 | a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467); |
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89 | d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784); |
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90 | c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473); |
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91 | b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734); |
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92 | |
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93 | a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558); |
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94 | d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463); |
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95 | c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562); |
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96 | b = md5_hh(b, c, d, a, x[i+14], 23, -35309556); |
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97 | a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060); |
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98 | d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353); |
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99 | c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632); |
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100 | b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640); |
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101 | a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174); |
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102 | d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222); |
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103 | c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979); |
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104 | b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189); |
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105 | a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487); |
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106 | d = md5_hh(d, a, b, c, x[i+12], 11, -421815835); |
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107 | c = md5_hh(c, d, a, b, x[i+15], 16, 530742520); |
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108 | b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651); |
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109 | |
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110 | a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844); |
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111 | d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415); |
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112 | c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905); |
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113 | b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055); |
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114 | a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571); |
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115 | d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606); |
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116 | c = md5_ii(c, d, a, b, x[i+10], 15, -1051523); |
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117 | b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799); |
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118 | a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359); |
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119 | d = md5_ii(d, a, b, c, x[i+15], 10, -30611744); |
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120 | c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380); |
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121 | b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649); |
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122 | a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070); |
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123 | d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379); |
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124 | c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259); |
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125 | b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551); |
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126 | |
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127 | a = safe_add(a, olda); |
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128 | b = safe_add(b, oldb); |
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129 | c = safe_add(c, oldc); |
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130 | d = safe_add(d, oldd); |
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131 | } |
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132 | return [a, b, c, d]; |
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133 | } |
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134 | |
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135 | /* |
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136 | * These functions implement the four basic operations the algorithm uses. |
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137 | */ |
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138 | function md5_cmn(q, a, b, x, s, t) |
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139 | { |
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140 | return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b); |
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141 | } |
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142 | function md5_ff(a, b, c, d, x, s, t) |
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143 | { |
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144 | return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); |
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145 | } |
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146 | function md5_gg(a, b, c, d, x, s, t) |
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147 | { |
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148 | return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); |
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149 | } |
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150 | function md5_hh(a, b, c, d, x, s, t) |
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151 | { |
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152 | return md5_cmn(b ^ c ^ d, a, b, x, s, t); |
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153 | } |
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154 | function md5_ii(a, b, c, d, x, s, t) |
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155 | { |
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156 | return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); |
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157 | } |
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158 | |
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159 | /* |
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160 | * Calculate the HMAC-MD5, of a key and some data |
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161 | */ |
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162 | function core_hmac_md5(key, data) |
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163 | { |
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164 | var bkey = str2binl(key); |
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165 | if(bkey.length > 16) { bkey = core_md5(bkey, key.length * chrsz); } |
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166 | |
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167 | var ipad = new Array(16), opad = new Array(16); |
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168 | for(var i = 0; i < 16; i++) |
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169 | { |
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170 | ipad[i] = bkey[i] ^ 0x36363636; |
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171 | opad[i] = bkey[i] ^ 0x5C5C5C5C; |
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172 | } |
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173 | |
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174 | var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz); |
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175 | return core_md5(opad.concat(hash), 512 + 128); |
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176 | } |
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177 | |
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178 | /* |
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179 | * Add integers, wrapping at 2^32. This uses 16-bit operations internally |
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180 | * to work around bugs in some JS interpreters. |
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181 | */ |
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182 | function safe_add(x, y) |
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183 | { |
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184 | var lsw = (x & 0xFFFF) + (y & 0xFFFF); |
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185 | var msw = (x >> 16) + (y >> 16) + (lsw >> 16); |
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186 | return (msw << 16) | (lsw & 0xFFFF); |
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187 | } |
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188 | |
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189 | /* |
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190 | * Bitwise rotate a 32-bit number to the left. |
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191 | */ |
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192 | function bit_rol(num, cnt) |
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193 | { |
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194 | return (num << cnt) | (num >>> (32 - cnt)); |
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195 | } |
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196 | |
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197 | /* |
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198 | * Convert a string to an array of little-endian words |
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199 | * If chrsz is ASCII, characters >255 have their hi-byte silently ignored. |
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200 | */ |
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201 | function str2binl(str) |
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202 | { |
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203 | var bin = []; |
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204 | var mask = (1 << chrsz) - 1; |
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205 | for(var i = 0; i < str.length * chrsz; i += chrsz) |
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206 | { |
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207 | bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32); |
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208 | } |
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209 | return bin; |
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210 | } |
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211 | |
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212 | /* |
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213 | * Convert an array of little-endian words to a string |
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214 | */ |
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215 | function binl2str(bin) |
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216 | { |
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217 | var str = ""; |
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218 | var mask = (1 << chrsz) - 1; |
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219 | for(var i = 0; i < bin.length * 32; i += chrsz) |
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220 | { |
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221 | str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask); |
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222 | } |
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223 | return str; |
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224 | } |
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225 | |
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226 | /* |
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227 | * Convert an array of little-endian words to a hex string. |
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228 | */ |
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229 | function binl2hex(binarray) |
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230 | { |
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231 | var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef"; |
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232 | var str = ""; |
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233 | for(var i = 0; i < binarray.length * 4; i++) |
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234 | { |
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235 | str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) + |
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236 | hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF); |
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237 | } |
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238 | return str; |
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239 | } |
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240 | |
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241 | /* |
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242 | * Convert an array of little-endian words to a base-64 string |
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243 | */ |
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244 | function binl2b64(binarray) |
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245 | { |
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246 | var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; |
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247 | var str = ""; |
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248 | var triplet, j; |
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249 | for(var i = 0; i < binarray.length * 4; i += 3) |
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250 | { |
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251 | triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16) | |
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252 | (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 ) | |
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253 | ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF); |
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254 | for(j = 0; j < 4; j++) |
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255 | { |
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256 | if(i * 8 + j * 6 > binarray.length * 32) { str += b64pad; } |
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257 | else { str += tab.charAt((triplet >> 6*(3-j)) & 0x3F); } |
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258 | } |
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259 | } |
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260 | return str; |
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261 | } |