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'use strict';
var utils = require('../utils');
var common = require('../common');
var assert = require('minimalistic-assert');
var rotr64_hi = utils.rotr64_hi;
var rotr64_lo = utils.rotr64_lo;
var shr64_hi = utils.shr64_hi;
var shr64_lo = utils.shr64_lo;
var sum64 = utils.sum64;
var sum64_hi = utils.sum64_hi;
var sum64_lo = utils.sum64_lo;
var sum64_4_hi = utils.sum64_4_hi;
var sum64_4_lo = utils.sum64_4_lo;
var sum64_5_hi = utils.sum64_5_hi;
var sum64_5_lo = utils.sum64_5_lo;
var BlockHash = common.BlockHash;
var sha512_K = [
0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
];
function SHA512() {
if (!(this instanceof SHA512))
return new SHA512();
BlockHash.call(this);
this.h = [
0x6a09e667, 0xf3bcc908,
0xbb67ae85, 0x84caa73b,
0x3c6ef372, 0xfe94f82b,
0xa54ff53a, 0x5f1d36f1,
0x510e527f, 0xade682d1,
0x9b05688c, 0x2b3e6c1f,
0x1f83d9ab, 0xfb41bd6b,
0x5be0cd19, 0x137e2179 ];
this.k = sha512_K;
this.W = new Array(160);
}
utils.inherits(SHA512, BlockHash);
module.exports = SHA512;
SHA512.blockSize = 1024;
SHA512.outSize = 512;
SHA512.hmacStrength = 192;
SHA512.padLength = 128;
SHA512.prototype._prepareBlock = function _prepareBlock(msg, start) {
var W = this.W;
// 32 x 32bit words
for (var i = 0; i < 32; i++)
W[i] = msg[start + i];
for (; i < W.length; i += 2) {
var c0_hi = g1_512_hi(W[i - 4], W[i - 3]); // i - 2
var c0_lo = g1_512_lo(W[i - 4], W[i - 3]);
var c1_hi = W[i - 14]; // i - 7
var c1_lo = W[i - 13];
var c2_hi = g0_512_hi(W[i - 30], W[i - 29]); // i - 15
var c2_lo = g0_512_lo(W[i - 30], W[i - 29]);
var c3_hi = W[i - 32]; // i - 16
var c3_lo = W[i - 31];
W[i] = sum64_4_hi(
c0_hi, c0_lo,
c1_hi, c1_lo,
c2_hi, c2_lo,
c3_hi, c3_lo);
W[i + 1] = sum64_4_lo(
c0_hi, c0_lo,
c1_hi, c1_lo,
c2_hi, c2_lo,
c3_hi, c3_lo);
}
};
SHA512.prototype._update = function _update(msg, start) {
this._prepareBlock(msg, start);
var W = this.W;
var ah = this.h[0];
var al = this.h[1];
var bh = this.h[2];
var bl = this.h[3];
var ch = this.h[4];
var cl = this.h[5];
var dh = this.h[6];
var dl = this.h[7];
var eh = this.h[8];
var el = this.h[9];
var fh = this.h[10];
var fl = this.h[11];
var gh = this.h[12];
var gl = this.h[13];
var hh = this.h[14];
var hl = this.h[15];
assert(this.k.length === W.length);
for (var i = 0; i < W.length; i += 2) {
var c0_hi = hh;
var c0_lo = hl;
var c1_hi = s1_512_hi(eh, el);
var c1_lo = s1_512_lo(eh, el);
var c2_hi = ch64_hi(eh, el, fh, fl, gh, gl);
var c2_lo = ch64_lo(eh, el, fh, fl, gh, gl);
var c3_hi = this.k[i];
var c3_lo = this.k[i + 1];
var c4_hi = W[i];
var c4_lo = W[i + 1];
var T1_hi = sum64_5_hi(
c0_hi, c0_lo,
c1_hi, c1_lo,
c2_hi, c2_lo,
c3_hi, c3_lo,
c4_hi, c4_lo);
var T1_lo = sum64_5_lo(
c0_hi, c0_lo,
c1_hi, c1_lo,
c2_hi, c2_lo,
c3_hi, c3_lo,
c4_hi, c4_lo);
c0_hi = s0_512_hi(ah, al);
c0_lo = s0_512_lo(ah, al);
c1_hi = maj64_hi(ah, al, bh, bl, ch, cl);
c1_lo = maj64_lo(ah, al, bh, bl, ch, cl);
var T2_hi = sum64_hi(c0_hi, c0_lo, c1_hi, c1_lo);
var T2_lo = sum64_lo(c0_hi, c0_lo, c1_hi, c1_lo);
hh = gh;
hl = gl;
gh = fh;
gl = fl;
fh = eh;
fl = el;
eh = sum64_hi(dh, dl, T1_hi, T1_lo);
el = sum64_lo(dl, dl, T1_hi, T1_lo);
dh = ch;
dl = cl;
ch = bh;
cl = bl;
bh = ah;
bl = al;
ah = sum64_hi(T1_hi, T1_lo, T2_hi, T2_lo);
al = sum64_lo(T1_hi, T1_lo, T2_hi, T2_lo);
}
sum64(this.h, 0, ah, al);
sum64(this.h, 2, bh, bl);
sum64(this.h, 4, ch, cl);
sum64(this.h, 6, dh, dl);
sum64(this.h, 8, eh, el);
sum64(this.h, 10, fh, fl);
sum64(this.h, 12, gh, gl);
sum64(this.h, 14, hh, hl);
};
SHA512.prototype._digest = function digest(enc) {
if (enc === 'hex')
return utils.toHex32(this.h, 'big');
else
return utils.split32(this.h, 'big');
};
function ch64_hi(xh, xl, yh, yl, zh) {
var r = (xh & yh) ^ ((~xh) & zh);
if (r < 0)
r += 0x100000000;
return r;
}
function ch64_lo(xh, xl, yh, yl, zh, zl) {
var r = (xl & yl) ^ ((~xl) & zl);
if (r < 0)
r += 0x100000000;
return r;
}
function maj64_hi(xh, xl, yh, yl, zh) {
var r = (xh & yh) ^ (xh & zh) ^ (yh & zh);
if (r < 0)
r += 0x100000000;
return r;
}
function maj64_lo(xh, xl, yh, yl, zh, zl) {
var r = (xl & yl) ^ (xl & zl) ^ (yl & zl);
if (r < 0)
r += 0x100000000;
return r;
}
function s0_512_hi(xh, xl) {
var c0_hi = rotr64_hi(xh, xl, 28);
var c1_hi = rotr64_hi(xl, xh, 2); // 34
var c2_hi = rotr64_hi(xl, xh, 7); // 39
var r = c0_hi ^ c1_hi ^ c2_hi;
if (r < 0)
r += 0x100000000;
return r;
}
function s0_512_lo(xh, xl) {
var c0_lo = rotr64_lo(xh, xl, 28);
var c1_lo = rotr64_lo(xl, xh, 2); // 34
var c2_lo = rotr64_lo(xl, xh, 7); // 39
var r = c0_lo ^ c1_lo ^ c2_lo;
if (r < 0)
r += 0x100000000;
return r;
}
function s1_512_hi(xh, xl) {
var c0_hi = rotr64_hi(xh, xl, 14);
var c1_hi = rotr64_hi(xh, xl, 18);
var c2_hi = rotr64_hi(xl, xh, 9); // 41
var r = c0_hi ^ c1_hi ^ c2_hi;
if (r < 0)
r += 0x100000000;
return r;
}
function s1_512_lo(xh, xl) {
var c0_lo = rotr64_lo(xh, xl, 14);
var c1_lo = rotr64_lo(xh, xl, 18);
var c2_lo = rotr64_lo(xl, xh, 9); // 41
var r = c0_lo ^ c1_lo ^ c2_lo;
if (r < 0)
r += 0x100000000;
return r;
}
function g0_512_hi(xh, xl) {
var c0_hi = rotr64_hi(xh, xl, 1);
var c1_hi = rotr64_hi(xh, xl, 8);
var c2_hi = shr64_hi(xh, xl, 7);
var r = c0_hi ^ c1_hi ^ c2_hi;
if (r < 0)
r += 0x100000000;
return r;
}
function g0_512_lo(xh, xl) {
var c0_lo = rotr64_lo(xh, xl, 1);
var c1_lo = rotr64_lo(xh, xl, 8);
var c2_lo = shr64_lo(xh, xl, 7);
var r = c0_lo ^ c1_lo ^ c2_lo;
if (r < 0)
r += 0x100000000;
return r;
}
function g1_512_hi(xh, xl) {
var c0_hi = rotr64_hi(xh, xl, 19);
var c1_hi = rotr64_hi(xl, xh, 29); // 61
var c2_hi = shr64_hi(xh, xl, 6);
var r = c0_hi ^ c1_hi ^ c2_hi;
if (r < 0)
r += 0x100000000;
return r;
}
function g1_512_lo(xh, xl) {
var c0_lo = rotr64_lo(xh, xl, 19);
var c1_lo = rotr64_lo(xl, xh, 29); // 61
var c2_lo = shr64_lo(xh, xl, 6);
var r = c0_lo ^ c1_lo ^ c2_lo;
if (r < 0)
r += 0x100000000;
return r;
}