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Diffstat (limited to 'node_modules/ripemd160/index.js')
-rw-r--r-- | node_modules/ripemd160/index.js | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/node_modules/ripemd160/index.js b/node_modules/ripemd160/index.js deleted file mode 100644 index 870de9c..0000000 --- a/node_modules/ripemd160/index.js +++ /dev/null @@ -1,163 +0,0 @@ -'use strict' -var Buffer = require('buffer').Buffer -var inherits = require('inherits') -var HashBase = require('hash-base') - -var ARRAY16 = new Array(16) - -var zl = [ - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, - 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, - 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, - 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 -] - -var zr = [ - 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, - 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, - 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, - 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, - 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 -] - -var sl = [ - 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, - 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, - 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, - 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, - 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 -] - -var sr = [ - 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, - 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, - 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, - 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, - 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 -] - -var hl = [0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e] -var hr = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000] - -function RIPEMD160 () { - HashBase.call(this, 64) - - // state - this._a = 0x67452301 - this._b = 0xefcdab89 - this._c = 0x98badcfe - this._d = 0x10325476 - this._e = 0xc3d2e1f0 -} - -inherits(RIPEMD160, HashBase) - -RIPEMD160.prototype._update = function () { - var words = ARRAY16 - for (var j = 0; j < 16; ++j) words[j] = this._block.readInt32LE(j * 4) - - var al = this._a | 0 - var bl = this._b | 0 - var cl = this._c | 0 - var dl = this._d | 0 - var el = this._e | 0 - - var ar = this._a | 0 - var br = this._b | 0 - var cr = this._c | 0 - var dr = this._d | 0 - var er = this._e | 0 - - // computation - for (var i = 0; i < 80; i += 1) { - var tl - var tr - if (i < 16) { - tl = fn1(al, bl, cl, dl, el, words[zl[i]], hl[0], sl[i]) - tr = fn5(ar, br, cr, dr, er, words[zr[i]], hr[0], sr[i]) - } else if (i < 32) { - tl = fn2(al, bl, cl, dl, el, words[zl[i]], hl[1], sl[i]) - tr = fn4(ar, br, cr, dr, er, words[zr[i]], hr[1], sr[i]) - } else if (i < 48) { - tl = fn3(al, bl, cl, dl, el, words[zl[i]], hl[2], sl[i]) - tr = fn3(ar, br, cr, dr, er, words[zr[i]], hr[2], sr[i]) - } else if (i < 64) { - tl = fn4(al, bl, cl, dl, el, words[zl[i]], hl[3], sl[i]) - tr = fn2(ar, br, cr, dr, er, words[zr[i]], hr[3], sr[i]) - } else { // if (i<80) { - tl = fn5(al, bl, cl, dl, el, words[zl[i]], hl[4], sl[i]) - tr = fn1(ar, br, cr, dr, er, words[zr[i]], hr[4], sr[i]) - } - - al = el - el = dl - dl = rotl(cl, 10) - cl = bl - bl = tl - - ar = er - er = dr - dr = rotl(cr, 10) - cr = br - br = tr - } - - // update state - var t = (this._b + cl + dr) | 0 - this._b = (this._c + dl + er) | 0 - this._c = (this._d + el + ar) | 0 - this._d = (this._e + al + br) | 0 - this._e = (this._a + bl + cr) | 0 - this._a = t -} - -RIPEMD160.prototype._digest = function () { - // create padding and handle blocks - this._block[this._blockOffset++] = 0x80 - if (this._blockOffset > 56) { - this._block.fill(0, this._blockOffset, 64) - this._update() - this._blockOffset = 0 - } - - this._block.fill(0, this._blockOffset, 56) - this._block.writeUInt32LE(this._length[0], 56) - this._block.writeUInt32LE(this._length[1], 60) - this._update() - - // produce result - var buffer = Buffer.alloc ? Buffer.alloc(20) : new Buffer(20) - buffer.writeInt32LE(this._a, 0) - buffer.writeInt32LE(this._b, 4) - buffer.writeInt32LE(this._c, 8) - buffer.writeInt32LE(this._d, 12) - buffer.writeInt32LE(this._e, 16) - return buffer -} - -function rotl (x, n) { - return (x << n) | (x >>> (32 - n)) -} - -function fn1 (a, b, c, d, e, m, k, s) { - return (rotl((a + (b ^ c ^ d) + m + k) | 0, s) + e) | 0 -} - -function fn2 (a, b, c, d, e, m, k, s) { - return (rotl((a + ((b & c) | ((~b) & d)) + m + k) | 0, s) + e) | 0 -} - -function fn3 (a, b, c, d, e, m, k, s) { - return (rotl((a + ((b | (~c)) ^ d) + m + k) | 0, s) + e) | 0 -} - -function fn4 (a, b, c, d, e, m, k, s) { - return (rotl((a + ((b & d) | (c & (~d))) + m + k) | 0, s) + e) | 0 -} - -function fn5 (a, b, c, d, e, m, k, s) { - return (rotl((a + (b ^ (c | (~d))) + m + k) | 0, s) + e) | 0 -} - -module.exports = RIPEMD160 |