zepto.md5.js 9.3 KB

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  1. (function($){
  2. var rotateLeft = function(lValue, iShiftBits) {
  3. return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
  4. }
  5. var addUnsigned = function(lX, lY) {
  6. var lX4, lY4, lX8, lY8, lResult;
  7. lX8 = (lX & 0x80000000);
  8. lY8 = (lY & 0x80000000);
  9. lX4 = (lX & 0x40000000);
  10. lY4 = (lY & 0x40000000);
  11. lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
  12. if (lX4 & lY4) return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
  13. if (lX4 | lY4) {
  14. if (lResult & 0x40000000) return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
  15. else return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
  16. } else {
  17. return (lResult ^ lX8 ^ lY8);
  18. }
  19. }
  20. var F = function(x, y, z) {
  21. return (x & y) | ((~ x) & z);
  22. }
  23. var G = function(x, y, z) {
  24. return (x & z) | (y & (~ z));
  25. }
  26. var H = function(x, y, z) {
  27. return (x ^ y ^ z);
  28. }
  29. var I = function(x, y, z) {
  30. return (y ^ (x | (~ z)));
  31. }
  32. var FF = function(a, b, c, d, x, s, ac) {
  33. a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
  34. return addUnsigned(rotateLeft(a, s), b);
  35. };
  36. var GG = function(a, b, c, d, x, s, ac) {
  37. a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
  38. return addUnsigned(rotateLeft(a, s), b);
  39. };
  40. var HH = function(a, b, c, d, x, s, ac) {
  41. a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
  42. return addUnsigned(rotateLeft(a, s), b);
  43. };
  44. var II = function(a, b, c, d, x, s, ac) {
  45. a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
  46. return addUnsigned(rotateLeft(a, s), b);
  47. };
  48. var convertToWordArray = function(string) {
  49. var lWordCount;
  50. var lMessageLength = string.length;
  51. var lNumberOfWordsTempOne = lMessageLength + 8;
  52. var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
  53. var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
  54. var lWordArray = Array(lNumberOfWords - 1);
  55. var lBytePosition = 0;
  56. var lByteCount = 0;
  57. while (lByteCount < lMessageLength) {
  58. lWordCount = (lByteCount - (lByteCount % 4)) / 4;
  59. lBytePosition = (lByteCount % 4) * 8;
  60. lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
  61. lByteCount++;
  62. }
  63. lWordCount = (lByteCount - (lByteCount % 4)) / 4;
  64. lBytePosition = (lByteCount % 4) * 8;
  65. lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
  66. lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
  67. lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
  68. return lWordArray;
  69. };
  70. var wordToHex = function(lValue) {
  71. var WordToHexValue = "", WordToHexValueTemp = "", lByte, lCount;
  72. for (lCount = 0; lCount <= 3; lCount++) {
  73. lByte = (lValue >>> (lCount * 8)) & 255;
  74. WordToHexValueTemp = "0" + lByte.toString(16);
  75. WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
  76. }
  77. return WordToHexValue;
  78. };
  79. var uTF8Encode = function(string) {
  80. string = string.replace(/\x0d\x0a/g, "\x0a");
  81. var output = "";
  82. for (var n = 0; n < string.length; n++) {
  83. var c = string.charCodeAt(n);
  84. if (c < 128) {
  85. output += String.fromCharCode(c);
  86. } else if ((c > 127) && (c < 2048)) {
  87. output += String.fromCharCode((c >> 6) | 192);
  88. output += String.fromCharCode((c & 63) | 128);
  89. } else {
  90. output += String.fromCharCode((c >> 12) | 224);
  91. output += String.fromCharCode(((c >> 6) & 63) | 128);
  92. output += String.fromCharCode((c & 63) | 128);
  93. }
  94. }
  95. return output;
  96. };
  97. $.extend($,{
  98. md5: function(string) {
  99. var x = Array();
  100. var k, AA, BB, CC, DD, a, b, c, d;
  101. var S11=7, S12=12, S13=17, S14=22;
  102. var S21=5, S22=9 , S23=14, S24=20;
  103. var S31=4, S32=11, S33=16, S34=23;
  104. var S41=6, S42=10, S43=15, S44=21;
  105. string = uTF8Encode(string);
  106. x = convertToWordArray(string);
  107. a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
  108. for (k = 0; k < x.length; k += 16) {
  109. AA = a; BB = b; CC = c; DD = d;
  110. a = FF(a, b, c, d, x[k+0], S11, 0xD76AA478);
  111. d = FF(d, a, b, c, x[k+1], S12, 0xE8C7B756);
  112. c = FF(c, d, a, b, x[k+2], S13, 0x242070DB);
  113. b = FF(b, c, d, a, x[k+3], S14, 0xC1BDCEEE);
  114. a = FF(a, b, c, d, x[k+4], S11, 0xF57C0FAF);
  115. d = FF(d, a, b, c, x[k+5], S12, 0x4787C62A);
  116. c = FF(c, d, a, b, x[k+6], S13, 0xA8304613);
  117. b = FF(b, c, d, a, x[k+7], S14, 0xFD469501);
  118. a = FF(a, b, c, d, x[k+8], S11, 0x698098D8);
  119. d = FF(d, a, b, c, x[k+9], S12, 0x8B44F7AF);
  120. c = FF(c, d, a, b, x[k+10], S13, 0xFFFF5BB1);
  121. b = FF(b, c, d, a, x[k+11], S14, 0x895CD7BE);
  122. a = FF(a, b, c, d, x[k+12], S11, 0x6B901122);
  123. d = FF(d, a, b, c, x[k+13], S12, 0xFD987193);
  124. c = FF(c, d, a, b, x[k+14], S13, 0xA679438E);
  125. b = FF(b, c, d, a, x[k+15], S14, 0x49B40821);
  126. a = GG(a, b, c, d, x[k+1], S21, 0xF61E2562);
  127. d = GG(d, a, b, c, x[k+6], S22, 0xC040B340);
  128. c = GG(c, d, a, b, x[k+11], S23, 0x265E5A51);
  129. b = GG(b, c, d, a, x[k+0], S24, 0xE9B6C7AA);
  130. a = GG(a, b, c, d, x[k+5], S21, 0xD62F105D);
  131. d = GG(d, a, b, c, x[k+10], S22, 0x2441453);
  132. c = GG(c, d, a, b, x[k+15], S23, 0xD8A1E681);
  133. b = GG(b, c, d, a, x[k+4], S24, 0xE7D3FBC8);
  134. a = GG(a, b, c, d, x[k+9], S21, 0x21E1CDE6);
  135. d = GG(d, a, b, c, x[k+14], S22, 0xC33707D6);
  136. c = GG(c, d, a, b, x[k+3], S23, 0xF4D50D87);
  137. b = GG(b, c, d, a, x[k+8], S24, 0x455A14ED);
  138. a = GG(a, b, c, d, x[k+13], S21, 0xA9E3E905);
  139. d = GG(d, a, b, c, x[k+2], S22, 0xFCEFA3F8);
  140. c = GG(c, d, a, b, x[k+7], S23, 0x676F02D9);
  141. b = GG(b, c, d, a, x[k+12], S24, 0x8D2A4C8A);
  142. a = HH(a, b, c, d, x[k+5], S31, 0xFFFA3942);
  143. d = HH(d, a, b, c, x[k+8], S32, 0x8771F681);
  144. c = HH(c, d, a, b, x[k+11], S33, 0x6D9D6122);
  145. b = HH(b, c, d, a, x[k+14], S34, 0xFDE5380C);
  146. a = HH(a, b, c, d, x[k+1], S31, 0xA4BEEA44);
  147. d = HH(d, a, b, c, x[k+4], S32, 0x4BDECFA9);
  148. c = HH(c, d, a, b, x[k+7], S33, 0xF6BB4B60);
  149. b = HH(b, c, d, a, x[k+10], S34, 0xBEBFBC70);
  150. a = HH(a, b, c, d, x[k+13], S31, 0x289B7EC6);
  151. d = HH(d, a, b, c, x[k+0], S32, 0xEAA127FA);
  152. c = HH(c, d, a, b, x[k+3], S33, 0xD4EF3085);
  153. b = HH(b, c, d, a, x[k+6], S34, 0x4881D05);
  154. a = HH(a, b, c, d, x[k+9], S31, 0xD9D4D039);
  155. d = HH(d, a, b, c, x[k+12], S32, 0xE6DB99E5);
  156. c = HH(c, d, a, b, x[k+15], S33, 0x1FA27CF8);
  157. b = HH(b, c, d, a, x[k+2], S34, 0xC4AC5665);
  158. a = II(a, b, c, d, x[k+0], S41, 0xF4292244);
  159. d = II(d, a, b, c, x[k+7], S42, 0x432AFF97);
  160. c = II(c, d, a, b, x[k+14], S43, 0xAB9423A7);
  161. b = II(b, c, d, a, x[k+5], S44, 0xFC93A039);
  162. a = II(a, b, c, d, x[k+12], S41, 0x655B59C3);
  163. d = II(d, a, b, c, x[k+3], S42, 0x8F0CCC92);
  164. c = II(c, d, a, b, x[k+10], S43, 0xFFEFF47D);
  165. b = II(b, c, d, a, x[k+1], S44, 0x85845DD1);
  166. a = II(a, b, c, d, x[k+8], S41, 0x6FA87E4F);
  167. d = II(d, a, b, c, x[k+15], S42, 0xFE2CE6E0);
  168. c = II(c, d, a, b, x[k+6], S43, 0xA3014314);
  169. b = II(b, c, d, a, x[k+13], S44, 0x4E0811A1);
  170. a = II(a, b, c, d, x[k+4], S41, 0xF7537E82);
  171. d = II(d, a, b, c, x[k+11], S42, 0xBD3AF235);
  172. c = II(c, d, a, b, x[k+2], S43, 0x2AD7D2BB);
  173. b = II(b, c, d, a, x[k+9], S44, 0xEB86D391);
  174. a = addUnsigned(a, AA);
  175. b = addUnsigned(b, BB);
  176. c = addUnsigned(c, CC);
  177. d = addUnsigned(d, DD);
  178. }
  179. var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
  180. return tempValue.toLowerCase();
  181. }
  182. });
  183. })(Zepto);