md5.js 5.3 KB

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  1. function md5(a) {
  2. function b(a, b) {
  3. return (a << b) | (a >>> (32 - b));
  4. }
  5. function c(a, b) {
  6. var c, d, e, f, g;
  7. return (e = 2147483648 & a), (f = 2147483648 & b), (c = 1073741824 & a), (d = 1073741824 & b), (g = (1073741823 & a) + (1073741823 & b)), c & d ? 2147483648 ^ g ^ e ^ f : c | d ? (1073741824 & g ? 3221225472 ^ g ^ e ^ f : 1073741824 ^ g ^ e ^ f) : g ^ e ^ f;
  8. }
  9. function d(a, b, c) {
  10. return (a & b) | (~a & c);
  11. }
  12. function e(a, b, c) {
  13. return (a & c) | (b & ~c);
  14. }
  15. function f(a, b, c) {
  16. return a ^ b ^ c;
  17. }
  18. function g(a, b, c) {
  19. return b ^ (a | ~c);
  20. }
  21. function h(a, e, f, g, h, i, j) {
  22. return (a = c(a, c(c(d(e, f, g), h), j))), c(b(a, i), e);
  23. }
  24. function i(a, d, f, g, h, i, j) {
  25. return (a = c(a, c(c(e(d, f, g), h), j))), c(b(a, i), d);
  26. }
  27. function j(a, d, e, g, h, i, j) {
  28. return (a = c(a, c(c(f(d, e, g), h), j))), c(b(a, i), d);
  29. }
  30. function k(a, d, e, f, h, i, j) {
  31. return (a = c(a, c(c(g(d, e, f), h), j))), c(b(a, i), d);
  32. }
  33. function l(a) {
  34. for (var b, c = a.length, d = c + 8, e = (d - (d % 64)) / 64, f = 16 * (e + 1), g = new Array(f - 1), h = 0, i = 0; c > i; ) (b = (i - (i % 4)) / 4), (h = (i % 4) * 8), (g[b] = g[b] | (a.charCodeAt(i) << h)), i++;
  35. return (b = (i - (i % 4)) / 4), (h = (i % 4) * 8), (g[b] = g[b] | (128 << h)), (g[f - 2] = c << 3), (g[f - 1] = c >>> 29), g;
  36. }
  37. function m(a) {
  38. var b,
  39. c,
  40. d = "",
  41. e = "";
  42. for (c = 0; 3 >= c; c++) (b = (a >>> (8 * c)) & 255), (e = "0" + b.toString(16)), (d += e.substr(e.length - 2, 2));
  43. return d;
  44. }
  45. function n(a) {
  46. a = a.replace(/\r\n/g, "\n");
  47. for (var b = "", c = 0; c < a.length; c++) {
  48. var d = a.charCodeAt(c);
  49. 128 > d ? (b += String.fromCharCode(d)) : d > 127 && 2048 > d ? ((b += String.fromCharCode((d >> 6) | 192)), (b += String.fromCharCode((63 & d) | 128))) : ((b += String.fromCharCode((d >> 12) | 224)), (b += String.fromCharCode(((d >> 6) & 63) | 128)), (b += String.fromCharCode((63 & d) | 128)));
  50. }
  51. return b;
  52. }
  53. var o,
  54. p,
  55. q,
  56. r,
  57. s,
  58. t,
  59. u,
  60. v,
  61. w,
  62. x = [],
  63. y = 7,
  64. z = 12,
  65. A = 17,
  66. B = 22,
  67. C = 5,
  68. D = 9,
  69. E = 14,
  70. F = 20,
  71. G = 4,
  72. H = 11,
  73. I = 16,
  74. J = 23,
  75. K = 6,
  76. L = 10,
  77. M = 15,
  78. N = 21;
  79. for (a = n(a), x = l(a), t = 1732584193, u = 4023233417, v = 2562383102, w = 271733878, o = 0; o < x.length; o += 16) (p = t), (q = u), (r = v), (s = w), (t = h(t, u, v, w, x[o + 0], y, 3614090360)), (w = h(w, t, u, v, x[o + 1], z, 3905402710)), (v = h(v, w, t, u, x[o + 2], A, 606105819)), (u = h(u, v, w, t, x[o + 3], B, 3250441966)), (t = h(t, u, v, w, x[o + 4], y, 4118548399)), (w = h(w, t, u, v, x[o + 5], z, 1200080426)), (v = h(v, w, t, u, x[o + 6], A, 2821735955)), (u = h(u, v, w, t, x[o + 7], B, 4249261313)), (t = h(t, u, v, w, x[o + 8], y, 1770035416)), (w = h(w, t, u, v, x[o + 9], z, 2336552879)), (v = h(v, w, t, u, x[o + 10], A, 4294925233)), (u = h(u, v, w, t, x[o + 11], B, 2304563134)), (t = h(t, u, v, w, x[o + 12], y, 1804603682)), (w = h(w, t, u, v, x[o + 13], z, 4254626195)), (v = h(v, w, t, u, x[o + 14], A, 2792965006)), (u = h(u, v, w, t, x[o + 15], B, 1236535329)), (t = i(t, u, v, w, x[o + 1], C, 4129170786)), (w = i(w, t, u, v, x[o + 6], D, 3225465664)), (v = i(v, w, t, u, x[o + 11], E, 643717713)), (u = i(u, v, w, t, x[o + 0], F, 3921069994)), (t = i(t, u, v, w, x[o + 5], C, 3593408605)), (w = i(w, t, u, v, x[o + 10], D, 38016083)), (v = i(v, w, t, u, x[o + 15], E, 3634488961)), (u = i(u, v, w, t, x[o + 4], F, 3889429448)), (t = i(t, u, v, w, x[o + 9], C, 568446438)), (w = i(w, t, u, v, x[o + 14], D, 3275163606)), (v = i(v, w, t, u, x[o + 3], E, 4107603335)), (u = i(u, v, w, t, x[o + 8], F, 1163531501)), (t = i(t, u, v, w, x[o + 13], C, 2850285829)), (w = i(w, t, u, v, x[o + 2], D, 4243563512)), (v = i(v, w, t, u, x[o + 7], E, 1735328473)), (u = i(u, v, w, t, x[o + 12], F, 2368359562)), (t = j(t, u, v, w, x[o + 5], G, 4294588738)), (w = j(w, t, u, v, x[o + 8], H, 2272392833)), (v = j(v, w, t, u, x[o + 11], I, 1839030562)), (u = j(u, v, w, t, x[o + 14], J, 4259657740)), (t = j(t, u, v, w, x[o + 1], G, 2763975236)), (w = j(w, t, u, v, x[o + 4], H, 1272893353)), (v = j(v, w, t, u, x[o + 7], I, 4139469664)), (u = j(u, v, w, t, x[o + 10], J, 3200236656)), (t = j(t, u, v, w, x[o + 13], G, 681279174)), (w = j(w, t, u, v, x[o + 0], H, 3936430074)), (v = j(v, w, t, u, x[o + 3], I, 3572445317)), (u = j(u, v, w, t, x[o + 6], J, 76029189)), (t = j(t, u, v, w, x[o + 9], G, 3654602809)), (w = j(w, t, u, v, x[o + 12], H, 3873151461)), (v = j(v, w, t, u, x[o + 15], I, 530742520)), (u = j(u, v, w, t, x[o + 2], J, 3299628645)), (t = k(t, u, v, w, x[o + 0], K, 4096336452)), (w = k(w, t, u, v, x[o + 7], L, 1126891415)), (v = k(v, w, t, u, x[o + 14], M, 2878612391)), (u = k(u, v, w, t, x[o + 5], N, 4237533241)), (t = k(t, u, v, w, x[o + 12], K, 1700485571)), (w = k(w, t, u, v, x[o + 3], L, 2399980690)), (v = k(v, w, t, u, x[o + 10], M, 4293915773)), (u = k(u, v, w, t, x[o + 1], N, 2240044497)), (t = k(t, u, v, w, x[o + 8], K, 1873313359)), (w = k(w, t, u, v, x[o + 15], L, 4264355552)), (v = k(v, w, t, u, x[o + 6], M, 2734768916)), (u = k(u, v, w, t, x[o + 13], N, 1309151649)), (t = k(t, u, v, w, x[o + 4], K, 4149444226)), (w = k(w, t, u, v, x[o + 11], L, 3174756917)), (v = k(v, w, t, u, x[o + 2], M, 718787259)), (u = k(u, v, w, t, x[o + 9], N, 3951481745)), (t = c(t, p)), (u = c(u, q)), (v = c(v, r)), (w = c(w, s));
  80. var O = m(t) + m(u) + m(v) + m(w);
  81. return O.toLowerCase();
  82. }