index.js 5.6 KB

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  1. (function() {
  2. var nodeEnv = typeof require !== 'undefined' && typeof process !== 'undefined';
  3. var __module = nodeEnv ? module : {exports:{}};
  4. var __filename = 'preview-scripts/__node_modules/ripemd160/index.js';
  5. var __require = nodeEnv ? function (request) {
  6. return cc.require(request);
  7. } : function (request) {
  8. return __quick_compile_project__.require(request, __filename);
  9. };
  10. function __define (exports, require, module) {
  11. if (!nodeEnv) {__quick_compile_project__.registerModule(__filename, module);}'use strict'
  12. var Buffer = require('buffer').Buffer
  13. var inherits = require('inherits')
  14. var HashBase = require('hash-base')
  15. var ARRAY16 = new Array(16)
  16. var zl = [
  17. 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
  18. 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8,
  19. 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12,
  20. 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2,
  21. 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13
  22. ]
  23. var zr = [
  24. 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12,
  25. 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2,
  26. 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13,
  27. 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14,
  28. 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11
  29. ]
  30. var sl = [
  31. 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8,
  32. 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12,
  33. 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5,
  34. 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12,
  35. 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6
  36. ]
  37. var sr = [
  38. 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6,
  39. 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11,
  40. 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5,
  41. 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8,
  42. 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11
  43. ]
  44. var hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]
  45. var hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000]
  46. function RIPEMD160 () {
  47. HashBase.call(this, 64)
  48. // state
  49. this._a = 0x67452301
  50. this._b = 0xefcdab89
  51. this._c = 0x98badcfe
  52. this._d = 0x10325476
  53. this._e = 0xc3d2e1f0
  54. }
  55. inherits(RIPEMD160, HashBase)
  56. RIPEMD160.prototype._update = function () {
  57. var words = ARRAY16
  58. for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4)
  59. var al = this._a | 0
  60. var bl = this._b | 0
  61. var cl = this._c | 0
  62. var dl = this._d | 0
  63. var el = this._e | 0
  64. var ar = this._a | 0
  65. var br = this._b | 0
  66. var cr = this._c | 0
  67. var dr = this._d | 0
  68. var er = this._e | 0
  69. // computation
  70. for (var i = 0; i < 80; i += 1) {
  71. var tl
  72. var tr
  73. if (i < 16) {
  74. tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i])
  75. tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i])
  76. } else if (i < 32) {
  77. tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i])
  78. tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i])
  79. } else if (i < 48) {
  80. tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i])
  81. tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i])
  82. } else if (i < 64) {
  83. tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i])
  84. tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i])
  85. } else { // if (i<80) {
  86. tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i])
  87. tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i])
  88. }
  89. al = el
  90. el = dl
  91. dl = rotl(cl, 10)
  92. cl = bl
  93. bl = tl
  94. ar = er
  95. er = dr
  96. dr = rotl(cr, 10)
  97. cr = br
  98. br = tr
  99. }
  100. // update state
  101. var t = (this._b + cl + dr) | 0
  102. this._b = (this._c + dl + er) | 0
  103. this._c = (this._d + el + ar) | 0
  104. this._d = (this._e + al + br) | 0
  105. this._e = (this._a + bl + cr) | 0
  106. this._a = t
  107. }
  108. RIPEMD160.prototype._digest = function () {
  109. // create padding and handle blocks
  110. this._block[this._blockOffset++] = 0x80
  111. if (this._blockOffset > 56) {
  112. this._block.fill(0, this._blockOffset, 64)
  113. this._update()
  114. this._blockOffset = 0
  115. }
  116. this._block.fill(0, this._blockOffset, 56)
  117. this._block.writeUInt32LE(this._length[0], 56)
  118. this._block.writeUInt32LE(this._length[1], 60)
  119. this._update()
  120. // produce result
  121. var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20)
  122. buffer.writeInt32LE(this._a, 0)
  123. buffer.writeInt32LE(this._b, 4)
  124. buffer.writeInt32LE(this._c, 8)
  125. buffer.writeInt32LE(this._d, 12)
  126. buffer.writeInt32LE(this._e, 16)
  127. return buffer
  128. }
  129. function rotl (x, n) {
  130. return (x << n) | (x >>> (32 - n))
  131. }
  132. function fn1 (a, b, c, d, e, m, k, s) {
  133. return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0
  134. }
  135. function fn2 (a, b, c, d, e, m, k, s) {
  136. return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0
  137. }
  138. function fn3 (a, b, c, d, e, m, k, s) {
  139. return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0
  140. }
  141. function fn4 (a, b, c, d, e, m, k, s) {
  142. return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0
  143. }
  144. function fn5 (a, b, c, d, e, m, k, s) {
  145. return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0
  146. }
  147. module.exports = RIPEMD160
  148. }
  149. if (nodeEnv) {
  150. __define(__module.exports, __require, __module);
  151. }
  152. else {
  153. __quick_compile_project__.registerModuleFunc(__filename, function () {
  154. __define(__module.exports, __require, __module);
  155. });
  156. }
  157. })();