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Просмотр файла: index.js
// Extracted from https://github.com/crypto-browserify/ripemd160
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var ARRAY16 = new Array(16);
var zl = initU8Array([
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 = initU8Array([
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 = initU8Array([
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 = initU8Array([
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 = initU32Array([0x00000000, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e]);
var hr = initU32Array([0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0x00000000]);
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;
}
function readInt32LE(buffer, offset) {
offset >>>= 0;
return (buffer[offset])
| (buffer[offset + 1] << 8)
| (buffer[offset + 2] << 16)
| (buffer[offset + 3] << 24);
}
function writeUInt32LE(buffer, value, offset) {
value = +value;
offset >>>= 0;
buffer[offset + 3] = (value >>> 24);
buffer[offset + 2] = (value >>> 16);
buffer[offset + 1] = (value >>> 8);
buffer[offset] = (value & 0xff);
return offset + 4;
}
function writeInt32LE(buffer, value, offset) {
value = +value;
offset >>>= 0;
buffer[offset] = (value & 0xff);
buffer[offset + 1] = (value >>> 8);
buffer[offset + 2] = (value >>> 16);
buffer[offset + 3] = (value >>> 24);
return offset + 4;
}
function initU32Array(data) {
if (typeof Uint32Array !== 'undefined') {
return new Uint32Array(data);
}
else {
return data;
}
}
function initU8Array(data) {
if (typeof Uint8Array !== 'undefined') {
return new Uint8Array(data);
}
else {
return data;
}
}
function createU8Array(size) {
if (typeof Uint8Array !== 'undefined') {
return new Uint8Array(size);
}
else {
return new Array(size);
}
}
var RIPEMD160 = /** @class */ (function () {
function RIPEMD160() {
this._block = createU8Array(64);
this._blockSize = 64;
this._blockOffset = 0;
this._length = [0, 0, 0, 0];
this._finalized = false;
this._a = 0x67452301;
this._b = 0xefcdab89;
this._c = 0x98badcfe;
this._d = 0x10325476;
this._e = 0xc3d2e1f0;
}
RIPEMD160.prototype.update = function (data) {
if (this._finalized)
throw new Error('Digest already called');
// consume data
var block = this._block;
var offset = 0;
while (this._blockOffset + data.length - offset >= this._blockSize) {
for (var i = this._blockOffset; i < this._blockSize;)
block[i++] = data[offset++];
this._update();
this._blockOffset = 0;
}
while (offset < data.length)
block[this._blockOffset++] = data[offset++];
// update length
for (var j = 0, carry = data.length * 8; carry > 0; ++j) {
this._length[j] += carry;
carry = (this._length[j] / 0x0100000000) | 0;
if (carry > 0)
this._length[j] -= 0x0100000000 * carry;
}
return this;
};
RIPEMD160.prototype._update = function () {
var words = ARRAY16;
for (var j = 0; j < 16; ++j) {
words[j] = readInt32LE(this._block, 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 = void 0;
var tr = void 0;
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 () {
if (this._finalized) {
throw new Error('Digest already called');
}
this._finalized = true;
// 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);
writeUInt32LE(this._block, this._length[0], 56);
writeUInt32LE(this._block, this._length[1], 60);
this._update();
// produce result
var buffer = createU8Array(20);
writeInt32LE(buffer, this._a, 0);
writeInt32LE(buffer, this._b, 4);
writeInt32LE(buffer, this._c, 8);
writeInt32LE(buffer, this._d, 12);
writeInt32LE(buffer, this._e, 16);
// reset state
this._block.fill(0);
this._blockOffset = 0;
for (var i = 0; i < 4; ++i) {
this._length[i] = 0;
}
return buffer;
};
return RIPEMD160;
}());
exports.RIPEMD160 = RIPEMD160;
exports.default = RIPEMD160;
});
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