slots/node_modules/imba/polyfills/crypto/esm/lib/ripemd160/index.js

import { inherits as inherits$0 } from "util";
import HashBase from "../hash-base";
'use strict';
var inherits = { inherits: inherits$0 }.inherits;
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;
}
export default RIPEMD160;