md5.js 7.1 KB

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