scrypt_fast.js

/*
* Awesome Password Generator aka HashPass
* Copyright (c) 133794m3r aka Macarthur Inbody 2011-2019
* https://github.com/133794m3r/hashpass
* Licensed GNU AGPLv3 or Later
* version 2.0a
*/
"use strict";
function scrypt(password, salt, log_n, r, p,dk_len, encoding) {


  function sha256_fast(data){


// SHA-256 constants
var K = new Uint32Array([
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b,
    0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01,
    0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7,
    0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152,
    0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
    0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc,
    0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819,
    0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08,
    0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f,
    0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
]);

     var digest_length = 32;
         var block_size = 64;
        var state = new Int32Array(8); // hash state
        var temp = new Int32Array(64); // temporary state
        var buffer = new Uint8Array(128); // buffer for data to hash
        var buffer_length = 0; // number of bytes in buffer
        var bytes_hashed = 0; // number of total bytes hashed
        var finished = false; // indicates whether the hash was finalized
        //state[0] = 0x6a09e667;
        //state[1] = 0xbb67ae85;
        //state[2] = 0x3c6ef372;
        //state[3] = 0xa54ff53a;
        //state[4] = 0x510e527f;
        //state[5] = 0x9b05688c;
        //state[6] = 0x1f83d9ab;
        //state[7] = 0x5be0cd19;



function hash_blocks(w, v, p, pos, len) {
    var a, b, c, d, e, f, g, h, u, i, j, t1, t2,pos_tmp=0;
    while (len >= 64) {
        a = v[0];
        b = v[1];
        c = v[2];
        d = v[3];
        e = v[4];
        f = v[5];
        g = v[6];
        h = v[7];
 /*
       for (i = 0; i < 16; i++) {
            j = pos + i * 4;
            w[i] = (((p[j] & 0xff) << 24) | ((p[j + 1] & 0xff) << 16) |
                ((p[j + 2] & 0xff) << 8) | (p[j + 3] & 0xff));
        }

        */

        //0
        pos_tmp=pos+0;
        w[0] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));
        //1
        pos_tmp=pos+4;
        w[1] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));
        //2
        pos_tmp=pos+8;
        w[2] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));
        //3
        pos_tmp=pos+12;
        w[3] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //4
        pos_tmp=pos+16;
        w[4] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //5
        pos_tmp=pos+20;
        w[5] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //6
        pos_tmp=pos+24;
        w[6] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //7
        pos_tmp=pos+28;
        w[7] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //8
        pos_tmp=pos+32;
        w[8] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //9
        pos_tmp=pos+36;
        w[9] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));


        //10
        pos_tmp=pos+40;
        w[10] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //11
        pos_tmp=pos+44;
        w[11] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //12
        pos_tmp=pos+48;
        w[12] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //13
        pos_tmp=pos+52;
        w[13] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //14
        pos_tmp=pos+56;
        w[14] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));

        //15
        pos_tmp=pos+60;
        w[15] = (((p[pos_tmp] & 0xff) << 24) | ((p[pos_tmp + 1] & 0xff) << 16) |
                ((p[pos_tmp + 2] & 0xff) << 8) | (p[pos_tmp + 3] & 0xff));


        /*
        for (i = 16; i < 64; i++) {
            u = w[i - 2];
            t1 = (u >>> 17 | u << (32 - 17)) ^ (u >>> 19 | u << (32 - 19)) ^ (u >>> 10);
            u = w[i - 15];
            t2 = (u >>> 7 | u << (32 - 7)) ^ (u >>> 18 | u << (32 - 18)) ^ (u >>> 3);
            w[i] = (t1 + w[i - 7] | 0) + (t2 + w[i - 16] | 0);
        }
        */

        //16
        u = w[14];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[1];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[16] = (t1 + w[9] | 0) + (t2 + w[0] | 0);

        //17  abbs todo
        u = w[15];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[2];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[17]=(t1 + w[10] | 0) + (t2 + w[1] | 0);

        //18
        u = w[16];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[3];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[18] = (t1 + w[11] | 0) + (t2 + w[2] | 0);
        //19


        u = w[17];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[4];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[19] = (t1 + w[12] | 0) + (t2 + w[3] | 0);



        //20
        u = w[18];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[5];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[20] = (t1 + w[13] | 0) + (t2 + w[4] | 0);



        //21
        u = w[19];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[6];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[21] = (t1 + w[14] | 0) + (t2 + w[5] | 0);



        //22
        u = w[20];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[7];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[22] = (t1 + w[15] | 0) + (t2 + w[6] | 0);


        //23
        u = w[21];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[8];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[23] = (t1 + w[16] | 0) + (t2 + w[7] | 0)

        //24
        u = w[22];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[9];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[24] = (t1 + w[17] | 0) + (t2 + w[8] | 0)
        //25
        u = w[23];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[10];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[25] = (t1 + w[18] | 0) + (t2 + w[9] | 0)

        //26
        u = w[24];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[11];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[26] = (t1 + w[19] | 0) + (t2 + w[10] | 0)

        //27
        u = w[25];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[12];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[27] = (t1 + w[20] | 0) + (t2 + w[11] | 0)


        //28
        u = w[26];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[13];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[28] = (t1 + w[21] | 0) + (t2 + w[12] | 0)


        //29
        u = w[27];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[14];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[29] = (t1 + w[22] | 0) + (t2 + w[13] | 0)


        //30
        u = w[28];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[15];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[30] = (t1 + w[23] | 0) + (t2 + w[14] | 0)

        //31
        u = w[29];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[16];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[31] = (t1 + w[24] | 0) + (t2 + w[15] | 0)

        //32
        u = w[30];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[17];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[32] = (t1 + w[25] | 0) + (t2 + w[16] | 0)

        //33
        u = w[31];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[18];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[33] = (t1 + w[26] | 0) + (t2 + w[17] | 0)

        //34
        u = w[32];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[19];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[34] = (t1 + w[27] | 0) + (t2 + w[18] | 0)

        //35
        u = w[33];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[20];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[35] = (t1 + w[28] | 0) + (t2 + w[19] | 0)

        //36
        u = w[34];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[21];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[36] = (t1 + w[29] | 0) + (t2 + w[20] | 0)

        //37
        u = w[35];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[22];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[37] = (t1 + w[30] | 0) + (t2 + w[21] | 0)

        //38
        u = w[36];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[23];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[38] = (t1 + w[31] | 0) + (t2 + w[22] | 0)

        //39
        u = w[37];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[24];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[39] = (t1 + w[32] | 0) + (t2 + w[23] | 0)

        //40
        u = w[38];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[25];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[40] = (t1 + w[33] | 0) + (t2 + w[24] | 0)

        //41
        u = w[39];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[26];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[41] = (t1 + w[34] | 0) + (t2 + w[25] | 0)

        //42
        u = w[40];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[27];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[42] = (t1 + w[35] | 0) + (t2 + w[26] | 0)

        //43
        u = w[41];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[28];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[43] = (t1 + w[36] | 0) + (t2 + w[27] | 0);


        //44
        u = w[42];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[29];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[44] = (t1 + w[37] | 0) + (t2 + w[28] | 0);


                       //45
        u = w[43];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[30];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[45] = (t1 + w[38] | 0) + (t2 + w[29] | 0);


                 //46
        u = w[44];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[31];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[46] = (t1 + w[39] | 0) + (t2 + w[30] | 0);


                 //47
        u = w[45];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[32];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[47] = (t1 + w[40] | 0) + (t2 + w[31] | 0);


                 //48
        u = w[46];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[33];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[48] = (t1 + w[41] | 0) + (t2 + w[32] | 0);


                 //49
        u = w[47];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[34];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[49] = (t1 + w[42] | 0) + (t2 + w[33] | 0);


                 //50
        u = w[48];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[35];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[50] = (t1 + w[43] | 0) + (t2 + w[34] | 0);


                 //51
        u = w[49];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[36];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[51] = (t1 + w[44] | 0) + (t2 + w[35] | 0);


                 //52
        u = w[50];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[37];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[52] = (t1 + w[45] | 0) + (t2 + w[36] | 0);


                 //53
        u = w[51];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[38];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[53] = (t1 + w[46] | 0) + (t2 + w[37] | 0);


                 //54
        u = w[52];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[39];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[54] = (t1 + w[47] | 0) + (t2 + w[38] | 0);


                 //55
        u = w[53];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[40];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[55] = (t1 + w[48] | 0) + (t2 + w[39] | 0);


                 //56
        u = w[54];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[41];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[56] = (t1 + w[49] | 0) + (t2 + w[40] | 0);


                 //57
        u = w[55];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[42];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[57] = (t1 + w[50] | 0) + (t2 + w[41] | 0);


                 //58
        u = w[56];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[43];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[58] = (t1 + w[51] | 0) + (t2 + w[42] | 0);


                 //59
        u = w[57];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[44];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[59] = (t1 + w[52] | 0) + (t2 + w[43] | 0);


                 //60
        u = w[58];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[45];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[60] = (t1 + w[53] | 0) + (t2 + w[44] | 0);


                 //61
        u = w[59];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[46];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[61] = (t1 + w[54] | 0) + (t2 + w[45] | 0);


                 //62
        u = w[60];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[47];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[62] = (t1 + w[55] | 0) + (t2 + w[46] | 0);


                 //63
        u = w[61];
        t1 = (u >>> 17 | u << 15) ^ (u >>> 19 | u << 13) ^ (u >>> 10);
        u = w[48];
        t2 = (u >>> 7 | u << 25) ^ (u >>> 18 | u << 14) ^ (u >>> 3);
        w[63] = (t1 + w[56] | 0) + (t2 + w[47] | 0);


        //64 loop part 2
        //starts here

        //0
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[0] + w[0]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //0

        //1
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[1] + w[1]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //1

        //2
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[2] + w[2]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //2

        //3
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[3] + w[3]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //3

        //4
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[4] + w[4]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //4

        //5
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[5] + w[5]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //5

        //6
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[6] + w[6]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //6

        //7
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[7] + w[7]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //7


        //8
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[8] + w[8]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //8

        //9
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[9] + w[9]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //9

        //10
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[10] + w[10]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //10

        //11
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[11] + w[11]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //11

        //12
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[12] + w[12]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //12

        //13
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[13] + w[13]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //13

        //14
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[14] + w[14]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //14

        //15
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[15] + w[15]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //15

        //16
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[16] + w[16]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //16

        //17
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[17] + w[17]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //17

        //18
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[18] + w[18]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //18

        //19
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[19] + w[19]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //19

        //20
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[20] + w[20]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //20

        //21
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[21] + w[21]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //21

        //22
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[22] + w[22]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //22

        //23
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[23] + w[23]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //23

        //24
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[24] + w[24]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //24

        //25
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[25] + w[25]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //25

        //26
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[26] + w[26]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //26

        //27
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[27] + w[27]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //27

        //28
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[28] + w[28]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //28

        //29
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[29] + w[29]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //29

        //30
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[30] + w[30]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //30

        //31
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[31] + w[31]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //31

        //32
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[32] + w[32]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //32

        //33
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[33] + w[33]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //33

        //34
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[34] + w[34]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //34

        //35
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[35] + w[35]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //35

        //36
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[36] + w[36]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //36

        //37
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[37] + w[37]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //37

        //38
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[38] + w[38]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //38

        //39
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[39] + w[39]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //39

        //40
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[40] + w[40]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //40

        //41
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[41] + w[41]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //41

        //42
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[42] + w[42]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //42

        //43
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[43] + w[43]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //43

        //44
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[44] + w[44]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //44

        //45
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[45] + w[45]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //45

        //46
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[46] + w[46]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //46

        //47
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[47] + w[47]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //47

        //48
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[48] + w[48]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //48

        //49
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[49] + w[49]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //49

        //50
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[50] + w[50]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //50

        //51
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[51] + w[51]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //51

        //52
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[52] + w[52]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //52

        //53
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[53] + w[53]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //53

        //54
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[54] + w[54]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //54

        //55
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[55] + w[55]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //55

        //56
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[56] + w[56]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //56

        //57
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[57] + w[57]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //57

        //58
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[58] + w[58]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //58

        //59
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[59] + w[59]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //59

        //60
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[60] + w[60]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //60

        //61
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[61] + w[61]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //61

        //62
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[62] + w[62]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //62

        //63
        t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
         (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
         ((h + ((K[63] + w[63]) | 0)) | 0)) | 0;
        t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
         (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
        h = g;
        g = f;
        f = e;
        e = (d + t1) | 0;
        d = c;
        c = b;
        b = a;
        a = (t1 + t2) | 0;
        //63

            ////64
            //t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
            //    (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
            //    ((h + ((K[64] + w[64]) | 0)) | 0)) | 0;
            //t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
            //    (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
            //h = g;
            //g = f;
            //f = e;
            //e = (d + t1) | 0;
            //d = c;
            //c = b;
            //b = a;
            //a = (t1 + t2) | 0;
            ////64

/*
        for (i = 34; i < 64; i++) {

            //0
            t1 = (((((e >>> 6 | e << 26) ^ (e >>> 11 | e << 21) ^
                (e >>> 25 | e << (7))) + ((e & f) ^ (~e & g))) | 0) +
                ((h + ((K[i] + w[i]) | 0)) | 0)) | 0;
            t2 = (((a >>> 2 | a << 30) ^ (a >>> 13 | a << 19) ^
                (a >>> 22 | a << 10)) + ((a & b) ^ (a & c) ^ (b & c))) | 0;
            h = g;
            g = f;
            f = e;
            e = (d + t1) | 0;
            d = c;
            c = b;
            b = a;
            a = (t1 + t2) | 0;
            //0
        }
        */







        v[0] += a;
        v[1] += b;
        v[2] += c;
        v[3] += d;
        v[4] += e;
        v[5] += f;
        v[6] += g;
        v[7] += h;
        pos += 64;
        len -= 64;
    }

 //       console.log('w2 '+w.join(','));

    return pos;
}




// Hash implements SHA256 hash algorithm.
function update(data,data_len=0){
    if(data_len ===  0){data_len=data.length}
    if(finished){
        throw new Error("SHA256: CAN'T UPDATE FINISHED");
    }
    var data_pos=0;
    bytes_hashed+=data_len;

    if(buffer_length > 0){
        while (buffer_length < 64 && data_len > 0){
            buffer[buffer_length++] = data[data_pos++];
            data_len--;
        }

        if(buffer_length === 64){
            hash_blocks(temp,state,buffer,0,64);
            buffer_length = 0;
        }
    }

    if(data_len >= 64){
        data_pos = hash_blocks(temp,state,data,data_pos,data_len);
        data_len%=64;
    }

    while(data_len > 0){
        buffer[buffer_length++] = data[data_pos++];
        data_len--;
    }

    return data;
}
function finish(out){
    var i=0;

        var left=buffer_length;
        var bit_len_hi = (bytes_hashed / 0x20000000 )| 0;
        var bit_len_lo = bytes_hashed << 3;
        var pad_len=( (bytes_hashed % 64) < 56) ? 64 : 128;
        var tmp=pad_len-8;
        i=left+1;
        buffer[left] = 0x80;
        for (;i<tmp; i++) {
            buffer[i]=0;
        }
        
        buffer[pad_len-8]= (bit_len_hi >>> 24) & 0xff;
        buffer[pad_len-7]= (bit_len_hi >>>16 )& 0xff;
        buffer[pad_len-6]= (bit_len_hi >>>8) &0xff;
        buffer[pad_len-5]= (bit_len_hi >>> 0) & 0xff;
        buffer[pad_len-4]= (bit_len_lo >>>24) & 0xff;
        buffer[pad_len-3]=(bit_len_lo >>> 16) & 0xff;
        buffer[pad_len-2]=(bit_len_lo >>> 8) &0xff;
        buffer[pad_len-1]=(bit_len_lo >>> 0 ) &0xff;
        hash_blocks(temp,state,buffer,0,pad_len);
    /*
    //for(i=0;i < 8; i++){
    //    out[i * 4] = (state[i] >>> 24) &0xff;
    //    out[i*4 +1] = (state[i] >>> 16) &0xff;
    //    out[i*4 +2] = (state[i] >>> 8) &0xff;
    //    out[i*4 + 3] = (state[i] >>> 0) &0xff;
    //}
    */
    //0
        out[0] = (state[0] >>> 24) &0xff;
        out[1] = (state[0] >>> 16) &0xff;
        out[2] = (state[0] >>> 8) &0xff;
        out[3] = (state[0] >>> 0) &0xff;


    //1
        out[4] = (state[1] >>> 24) &0xff;
        out[5] = (state[1] >>> 16) &0xff;
        out[6] = (state[1] >>> 8) &0xff;
        out[7] = (state[1] >>> 0) &0xff;

    //2
        out[8] = (state[2] >>> 24) &0xff;
        out[9] = (state[2] >>> 16) &0xff;
        out[10] = (state[2] >>> 8) &0xff;
        out[11] = (state[2] >>> 0) &0xff;

    //3
        out[12] = (state[3] >>> 24) &0xff;
        out[13] = (state[3] >>> 16) &0xff;
        out[14] = (state[3] >>> 8) &0xff;
        out[15] = (state[3] >>> 0) &0xff;

    //4
        out[16] = (state[4] >>> 24) &0xff;
        out[17] = (state[4] >>> 16) &0xff;
        out[18] = (state[4] >>> 8) &0xff;
        out[19] = (state[4] >>> 0) &0xff;

    //5
        out[20] = (state[5] >>> 24) &0xff;
        out[21] = (state[5] >>> 16) &0xff;
        out[22] = (state[5] >>> 8) &0xff;
        out[23] = (state[5] >>> 0) &0xff;

    //6
        out[24] = (state[6] >>> 24) &0xff;
        out[25] = (state[6] >>> 16) &0xff;
        out[26] = (state[6] >>> 8) &0xff;
        out[27] = (state[6] >>> 0) &0xff;

    //7
        out[28] = (state[7] >>> 24) &0xff;
        out[29] = (state[7] >>> 16) &0xff;
        out[30] = (state[7] >>> 8) &0xff;
        out[31] = (state[7] >>> 0) &0xff;

    
    return out;
}

    state[0] = 0x6a09e667;
    state[1] = 0xbb67ae85;
    state[2] = 0x3c6ef372;
    state[3] = 0xa54ff53a;
    state[4] = 0x510e527f;
    state[5] = 0x9b05688c;
    state[6] = 0x1f83d9ab;
    state[7] = 0x5be0cd19;
    buffer_length = 0;
    bytes_hashed = 0;


    update(data);
  var out=new Uint8Array(digest_length);
    return finish(out);
//return hash(data);
}

function PBKDF2_HMAC_SHA256_one_iter_fast(password, salt, dk_len){
"use strict";
    password = password.length <= 64 ? password : sha256_fast(password);


    ////hash them both to make it possible to allocate arrays a single time to reduce cputime.
    //password=sha256_fast(password);
    //salt = sha256_fast(salt);
    var password_len=password.length;
    var salt_len=salt.length;
    //var salt_len=32;
    //var password_len=32;
    var i, inner_len = 64 + salt_len + 4,
        inner = new Uint8Array(inner_len),
        outer_key = new Uint8Array(64),
        dk = new Uint8Array(dk_len);
    var tmp_arr=new Uint8Array(96);
    var tmp_arr_len=inner_len+64;
    var tmp=new Uint8Array(32);
    //var tmp=tmp_buf;
    //var inner=inner_buf;
    //var outer_key=outer_buf;
    //var tmp_arr=tmp_buf_arr;
    var j=0;
    var i_4=inner_len-4;
    // inner = (password ^ ipad) || salt || counter
    /*
    for (i = 0; i < 64; i++){
      inner[i] = 0x36;
    }
    */
    inner.fill(0x36);
    for (i = 0; i < password_len; i++){
      inner[i] ^= password[i];
    }
    /*
    for (i = 0; i < salt_len; i++){
      inner[64+i] = salt[i];
    }
    */
    inner.set(salt,64);
    /*
    for (i = i_4; i < inner_len; i++){
      inner[i] = 0;
    }
    */
    inner.fill(0,i_4);
/*
    // outer_key = password ^ opad
    for (i = 0; i < 64; i++){
      outer_key[i] = 0x5c;
    }
    */
    outer_key.fill(0x5c);
    for (i = 0; i < password_len; i++){
      outer_key[i] ^= password[i];
    }
    
    // increments counter inside inner
    function increment_counter() {
        var i=inner_len-1;
      for (; i >= i_4; i--) {
        inner[i]++;
        if (inner[i] <= 0xff){
          return 0;
        }
        inner[i] = 0;
      }
    }
    //console.log(outer_key.concat(inner));
    // output blocks = SHA256(outer_key || SHA256(inner)) ...
    while (dk_len >= 32) {
      increment_counter();
      tmp=sha256_fast(inner);
      tmp_arr.set(outer_key);
      //tmp_arr=outer_key;
      tmp_arr.set(tmp,64);
      tmp=sha256_fast(tmp_arr);
      //dk = dk.concat(sha256_fast(outer_key.concat(sha256_fast(inner))));
      //console.log('t'+tmp);
      dk.set(tmp,j*32);
      //tmp=tmp.fill(0);
      j++;
      dk_len -= 32;
    }
    if (dk_len > 0) {
      increment_counter();
      tmp=sha256_fast(inner);
      tmp_arr.set(outer_key);
      tmp_arr.set(tmp,64);
      tmp=sha256_fast(tmp_arr);
      tmp=tmp.slice(0,dk_len);
      dk.set(tmp);
      //dk = dk.concat(sha256_fast(outer_key.concat(sha256_fast(inner))).slice(0, dkLen));
    }
    //console.log('inn'+inner);
    //console.log('out'+outer_key);
    //console.log(tmp_arr);
    return dk;
  }

  function salsa_xor(tmp, B, bin, bout) {
    var j0  = tmp[0]  ^ B[bin++];
    var j1  = tmp[1]  ^ B[bin++];
    var j2  = tmp[2]  ^ B[bin++];
    var j3  = tmp[3]  ^ B[bin++];
    var j4  = tmp[4]  ^ B[bin++];
    var j5  = tmp[5]  ^ B[bin++];
    var j6  = tmp[6]  ^ B[bin++];
    var j7  = tmp[7]  ^ B[bin++];
    var j8  = tmp[8]  ^ B[bin++];
    var j9  = tmp[9]  ^ B[bin++];
    var j10 = tmp[10] ^ B[bin++];
    var j11 = tmp[11] ^ B[bin++];
    var j12 = tmp[12] ^ B[bin++];
    var j13 = tmp[13] ^ B[bin++];
    var j14 = tmp[14] ^ B[bin++];
    var j15 = tmp[15] ^ B[bin++];
    var u, i;

    var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
        x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
        x15 = j15;
  
  /*
  //for (i = 0; i < 8; i += 2) {
  //     //0
  ////
  //  u =  x0 + x12;
  //  x4 ^= u<<7  | u>>>25;
  //  u =  x4 +  x0;
  //  x8 ^= u<<9  | u>>>23;
  //  u =  x8 +  x4;
  //  x12 ^= u<<13 | u>>>19;
  //  u = x12 +  x8;
  //  x0 ^= u<<18 | u>>>14;
  //
  //  u =  x5 +  x1;
  //  x9 ^= u<<7  | u>>>25;
  //  u =  x9 +  x5;
  //  x13 ^= u<<9  | u>>>23;
  //  u = x13 +  x9;
  //  x1 ^= u<<13 | u>>>19;
  //  u =  x1 + x13;
  //  x5 ^= u<<18 | u>>>14;
  //
  //  u = x10 +  x6;
  //  x14 ^= u<<7  | u>>>25;
  //  u = x14 + x10;
  //  x2 ^= u<<9  | u>>>23;
  //  u =  x2 + x14;
  //  x6 ^= u<<13 | u>>>19;
  //  u =  x6 +  x2;
  //  x10 ^= u<<18 | u>>>14;
  //
  //  u = x15 + x11;
  //  x3 ^= u<<7  | u>>>25;
  //  u =  x3 + x15;
  //  x7 ^= u<<9  | u>>>23;
  //  u =  x7 +  x3;
  //  x11 ^= u<<13 | u>>>19;
  //  u = x11 +  x7;
  //  x15 ^= u<<18 | u>>>14;
  //
  //  u =  x0 +  x3;
  //  x1 ^= u<<7  | u>>>25;
  //  u =  x1 +  x0;
  //  x2 ^= u<<9  | u>>>23;
  //  u =  x2 +  x1;
  //  x3 ^= u<<13 | u>>>19;
  //  u =  x3 +  x2;
  //  x0 ^= u<<18 | u>>>14;
  //
  //  u =  x5 +  x4;
  //  x6 ^= u<<7  | u>>>25;
  //  u =  x6 +  x5;
  //  x7 ^= u<<9  | u>>>23;
  //  u =  x7 +  x6;
  //  x4 ^= u<<13 | u>>>19;
  //  u =  x4 +  x7;
  //  x5 ^= u<<18 | u>>>14;
  //
  //  u = x10 +  x9;
  //  x11 ^= u<<7  | u>>>25;
  //  u = x11 + x10;
  //  x8 ^= u<<9  | u>>>23;
  //  u =  x8 + x11;
  //  x9 ^= u<<13 | u>>>19;
  //  u =  x9 +  x8;
  //  x10 ^= u<<18 | u>>>14;
  //
  //  u = x15 + x14;
  //  x12 ^= u<<7  | u>>>25;
  //  u = x12 + x15;
  //  x13 ^= u<<9  | u>>>23;
  //  u = x13 + x12;
  //  x14 ^= u<<13 | u>>>19;
  //  u = x14 + x13;
  //  x15 ^= u<<18 | u>>>14;
  //
  ////0 end
  //}
*/
         //0
    u =  x0 + x12;
    x4 ^= u<<7  | u>>>25;
    u =  x4 +  x0;
    x8 ^= u<<9  | u>>>23;
    u =  x8 +  x4;
    x12 ^= u<<13 | u>>>19;
    u = x12 +  x8;
    x0 ^= u<<18 | u>>>14;

    u =  x5 +  x1;
    x9 ^= u<<7  | u>>>25;
    u =  x9 +  x5;
    x13 ^= u<<9  | u>>>23;
    u = x13 +  x9;
    x1 ^= u<<13 | u>>>19;
    u =  x1 + x13;
    x5 ^= u<<18 | u>>>14;

    u = x10 +  x6;
    x14 ^= u<<7  | u>>>25;
    u = x14 + x10;
    x2 ^= u<<9  | u>>>23;
    u =  x2 + x14;
    x6 ^= u<<13 | u>>>19;
    u =  x6 +  x2;
    x10 ^= u<<18 | u>>>14;

    u = x15 + x11;
    x3 ^= u<<7  | u>>>25;
    u =  x3 + x15;
    x7 ^= u<<9  | u>>>23;
    u =  x7 +  x3;
    x11 ^= u<<13 | u>>>19;
    u = x11 +  x7;
    x15 ^= u<<18 | u>>>14;

    u =  x0 +  x3;
    x1 ^= u<<7  | u>>>25;
    u =  x1 +  x0;
    x2 ^= u<<9  | u>>>23;
    u =  x2 +  x1;
    x3 ^= u<<13 | u>>>19;
    u =  x3 +  x2;
    x0 ^= u<<18 | u>>>14;

    u =  x5 +  x4;
    x6 ^= u<<7  | u>>>25;
    u =  x6 +  x5;
    x7 ^= u<<9  | u>>>23;
    u =  x7 +  x6;
    x4 ^= u<<13 | u>>>19;
    u =  x4 +  x7;
    x5 ^= u<<18 | u>>>14;

    u = x10 +  x9;
    x11 ^= u<<7  | u>>>25;
    u = x11 + x10;
    x8 ^= u<<9  | u>>>23;
    u =  x8 + x11;
    x9 ^= u<<13 | u>>>19;
    u =  x9 +  x8;
    x10 ^= u<<18 | u>>>14;

    u = x15 + x14;
    x12 ^= u<<7  | u>>>25;
    u = x12 + x15;
    x13 ^= u<<9  | u>>>23;
    u = x13 + x12;
    x14 ^= u<<13 | u>>>19;
    u = x14 + x13;
    x15 ^= u<<18 | u>>>14;

  //0 end

      //1

      u =  x0 + x12;
  x4 ^= u<<7  | u>>>25;
      u =  x4 +  x0;
  x8 ^= u<<9  | u>>>23;
      u =  x8 +  x4;
x12 ^= u<<13 | u>>>19;
      u = x12 +  x8;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x1;
  x9 ^= u<<7  | u>>>25;
      u =  x9 +  x5;
x13 ^= u<<9  | u>>>23;
      u = x13 +  x9;
  x1 ^= u<<13 | u>>>19;
      u =  x1 + x13;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x6;
x14 ^= u<<7  | u>>>25;
      u = x14 + x10;
  x2 ^= u<<9  | u>>>23;
      u =  x2 + x14;
  x6 ^= u<<13 | u>>>19;
      u =  x6 +  x2;
x10 ^= u<<18 | u>>>14;

      u = x15 + x11;
  x3 ^= u<<7  | u>>>25;
      u =  x3 + x15;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x3;
x11 ^= u<<13 | u>>>19;
      u = x11 +  x7;
x15 ^= u<<18 | u>>>14;

      u =  x0 +  x3;
  x1 ^= u<<7  | u>>>25;
      u =  x1 +  x0;
  x2 ^= u<<9  | u>>>23;
      u =  x2 +  x1;
  x3 ^= u<<13 | u>>>19;
      u =  x3 +  x2;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x4;
  x6 ^= u<<7  | u>>>25;
      u =  x6 +  x5;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x6;
  x4 ^= u<<13 | u>>>19;
      u =  x4 +  x7;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x9;
x11 ^= u<<7  | u>>>25;
      u = x11 + x10;
  x8 ^= u<<9  | u>>>23;
      u =  x8 + x11;
  x9 ^= u<<13 | u>>>19;
      u =  x9 +  x8;
x10 ^= u<<18 | u>>>14;

      u = x15 + x14;
x12 ^= u<<7  | u>>>25;
      u = x12 + x15;
x13 ^= u<<9  | u>>>23;
      u = x13 + x12;
x14 ^= u<<13 | u>>>19;
      u = x14 + x13;
x15 ^= u<<18 | u>>>14;

//1 end

      //2

      u =  x0 + x12;
  x4 ^= u<<7  | u>>>25;
      u =  x4 +  x0;
  x8 ^= u<<9  | u>>>23;
      u =  x8 +  x4;
x12 ^= u<<13 | u>>>19;
      u = x12 +  x8;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x1;
  x9 ^= u<<7  | u>>>25;
      u =  x9 +  x5;
x13 ^= u<<9  | u>>>23;
      u = x13 +  x9;
  x1 ^= u<<13 | u>>>19;
      u =  x1 + x13;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x6;
x14 ^= u<<7  | u>>>25;
      u = x14 + x10;
  x2 ^= u<<9  | u>>>23;
      u =  x2 + x14;
  x6 ^= u<<13 | u>>>19;
      u =  x6 +  x2;
x10 ^= u<<18 | u>>>14;

      u = x15 + x11;
  x3 ^= u<<7  | u>>>25;
      u =  x3 + x15;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x3;
x11 ^= u<<13 | u>>>19;
      u = x11 +  x7;
x15 ^= u<<18 | u>>>14;

      u =  x0 +  x3;
  x1 ^= u<<7  | u>>>25;
      u =  x1 +  x0;
  x2 ^= u<<9  | u>>>23;
      u =  x2 +  x1;
  x3 ^= u<<13 | u>>>19;
      u =  x3 +  x2;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x4;
  x6 ^= u<<7  | u>>>25;
      u =  x6 +  x5;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x6;
  x4 ^= u<<13 | u>>>19;
      u =  x4 +  x7;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x9;
x11 ^= u<<7  | u>>>25;
      u = x11 + x10;
  x8 ^= u<<9  | u>>>23;
      u =  x8 + x11;
  x9 ^= u<<13 | u>>>19;
      u =  x9 +  x8;
x10 ^= u<<18 | u>>>14;

      u = x15 + x14;
x12 ^= u<<7  | u>>>25;
      u = x12 + x15;
x13 ^= u<<9  | u>>>23;
      u = x13 + x12;
x14 ^= u<<13 | u>>>19;
      u = x14 + x13;
x15 ^= u<<18 | u>>>14;

//2 end

      //3

      u =  x0 + x12;
  x4 ^= u<<7  | u>>>25;
      u =  x4 +  x0;
  x8 ^= u<<9  | u>>>23;
      u =  x8 +  x4;
x12 ^= u<<13 | u>>>19;
      u = x12 +  x8;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x1;
  x9 ^= u<<7  | u>>>25;
      u =  x9 +  x5;  
x13 ^= u<<9  | u>>>23;
      u = x13 +  x9;
  x1 ^= u<<13 | u>>>19;
      u =  x1 + x13;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x6;  
x14 ^= u<<7  | u>>>25;
      u = x14 + x10;
  x2 ^= u<<9  | u>>>23;
      u =  x2 + x14;
  x6 ^= u<<13 | u>>>19;
      u =  x6 +  x2;  
x10 ^= u<<18 | u>>>14;

      u = x15 + x11;
  x3 ^= u<<7  | u>>>25;
      u =  x3 + x15;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x3;  
x11 ^= u<<13 | u>>>19;
      u = x11 +  x7;  
x15 ^= u<<18 | u>>>14;

      u =  x0 +  x3;
  x1 ^= u<<7  | u>>>25;
      u =  x1 +  x0;
  x2 ^= u<<9  | u>>>23;
      u =  x2 +  x1;
  x3 ^= u<<13 | u>>>19;
      u =  x3 +  x2;
  x0 ^= u<<18 | u>>>14;

      u =  x5 +  x4;
  x6 ^= u<<7  | u>>>25;
      u =  x6 +  x5;
  x7 ^= u<<9  | u>>>23;
      u =  x7 +  x6;
  x4 ^= u<<13 | u>>>19;
      u =  x4 +  x7;
  x5 ^= u<<18 | u>>>14;

      u = x10 +  x9;  
x11 ^= u<<7  | u>>>25;
      u = x11 + x10;
  x8 ^= u<<9  | u>>>23;
      u =  x8 + x11;
  x9 ^= u<<13 | u>>>19;
      u =  x9 +  x8;  
x10 ^= u<<18 | u>>>14;

      u = x15 + x14;  
x12 ^= u<<7  | u>>>25;
      u = x12 + x15;  
x13 ^= u<<9  | u>>>23;
      u = x13 + x12;  
x14 ^= u<<13 | u>>>19;
      u = x14 + x13;  
x15 ^= u<<18 | u>>>14;

//3 end



    B[bout++] = tmp[0]  = (x0  + j0)  | 0;
    B[bout++] = tmp[1]  = (x1  + j1)  | 0;
    B[bout++] = tmp[2]  = (x2  + j2)  | 0;
    B[bout++] = tmp[3]  = (x3  + j3)  | 0;
    B[bout++] = tmp[4]  = (x4  + j4)  | 0;
    B[bout++] = tmp[5]  = (x5  + j5)  | 0;
    B[bout++] = tmp[6]  = (x6  + j6)  | 0;
    B[bout++] = tmp[7]  = (x7  + j7)  | 0;
    B[bout++] = tmp[8]  = (x8  + j8)  | 0;
    B[bout++] = tmp[9]  = (x9  + j9)  | 0;
    B[bout++] = tmp[10] = (x10 + j10) | 0;
    B[bout++] = tmp[11] = (x11 + j11) | 0;
    B[bout++] = tmp[12] = (x12 + j12) | 0;
    B[bout++] = tmp[13] = (x13 + j13) | 0;
    B[bout++] = tmp[14] = (x14 + j14) | 0;
    B[bout++] = tmp[15] = (x15 + j15) | 0;
  }
  //convert to a version using subarray instead of looping over.
  // cannot do with block xor as its pointless.
  function block_copy(dst, di, src, si, len) {
    //while (len--) dst[di++] = src[si++];
    dst.set(src.subarray(si,(si+len)),di);
  }

  function block_xor(dst, di, src, si, len) {
    while (len--) dst[di++] ^= src[si++];
  }

  function block_mix(tmp, B, bin, bout, r) {
    var i=0;
    var i_16=0;
    var i_8=0;
    var bin_i_16=0;
    var bout_i_8=0;
    block_copy(tmp, 0, B, bin + (r_2_1_16), 16);
    for (i = 0; i < r_2; i += 2) {
      //i_16=i*16;
      //i_8=i*8;
      bin_i_16=bin+(i*16);
      bout_i_8=bout+(i*8);
      salsa_xor(tmp, B, bin_i_16,      bout_i_8);
      salsa_xor(tmp, B, bin_i_16 + 16, bout_i_8 + r_16);
    }
  }

  function integerify(B, bi, r) {
    //return B[bi+(2*r-1)*16];
    return B[bi+r_2_1_16];
  }

  function string_to_bytes(s) {
      var arr = [];
      var s_len=s.length;
      var arr_len=0;
      for (var i = 0; i < s_len; i++) {
          var c = s.charCodeAt(i);
          if (c < 128) {
              arr[arr_len++]=c;
          } else if (c > 127 && c < 2048) {
              arr[arr_len++]=(c>>6) | 192;
              arr[arr_len++]=(c & 63) | 128;
          } else {
              arr[arr_len++]=(c>>12) | 224;
              arr[arr_len++]=((c>>6) & 63) | 128;
              arr[arr_len++]=(c & 63) | 128;
          }
      }
      return arr;
  }

  function bytes_to_hex(p) {
    /** @const */
    var enc = '0123456789abcdef'.split('');

    var len = p.length,
        arr = [],
        i = 0;
  var arr_len=0;        

    for (; i < len; i++) {
        arr[arr_len++]=(enc[(p[i]>>>4) & 15]);
        arr[arr_len++]=(enc[(p[i]>>>0) & 15]);
    }
    return arr.join('');
  }

  function bytes_to_b64(p) {
    /** @const */
    var enc = ('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' +
              '0123456789+/').split('');

    var len = p.length,
        arr = [],
        arr_len=0;
        var i = 0;
        var a=0;
        var b=0;
        var c=0;
        var t=0;

    while (i < len) {
      a = i < len ? p[i++] : 0;
      b = i < len ? p[i++] : 0;
      c = i < len ? p[i++] : 0;
      t = (a << 16) + (b << 8) + c;
      arr[arr_len++]=(enc[(t >>> 3 * 6) & 63]);
      arr[arr_len++]=(enc[(t >>> 2 * 6) & 63]);
      arr[arr_len++]=(enc[(t >>> 1 * 6) & 63]);
      arr[arr_len++]=(enc[(t >>> 0 * 6) & 63]);
    }
    if (len % 3 > 0) {
      arr[arr.length-1] = '=';
      if (len % 3 === 1) arr[arr.length-2] = '=';
    }
    return arr.join('');
  }

  function string_to_int8_array(s) {
"use strict";
    var arr = [];
    var s_len=s.length;
    var arr_len=0;
    //console.log(s);
    //console.log(typeof s);
    for (var i = 0; i < s_len; i++) {
        var c = s.charCodeAt(i);
        if (c < 128) {
            arr[arr_len++]=c;
        } else if (c > 127 && c < 2048) {
            arr[arr_len++]=((c>>6) | 192);
            arr[arr_len++]=((c & 63) | 128);
        } else {
            arr[arr_len++]=((c>>12) | 224);
            arr[arr_len++]=(((c>>6) & 63) | 128);
            arr[arr_len++]=((c & 63) | 128);
        }
    }
    arr=Int8Array.from(arr);
    return arr;
  }
  // Generate key.

  var MAX_UINT = (-1)>>>0;

  if (typeof log_n === "object") {
    // Called as: scrypt(password, salt, opts, callback)
    if (arguments.length > 4) {
      throw new Error('scrypt: incorrect number of arguments');
    }

    var opts = log_n;

    var callback = r;
    log_n = opts.log_n;
    if (typeof log_n === 'undefined') {
      if (typeof opts.n!== 'undefined') {
        if (opts.n< 2 || opts.n> MAX_UINT)
          throw new Error('scrypt: N is out of range');

        if ((opts.n& (opts.n- 1)) !== 0)
          throw new Error('scrypt: N is not a power of 2');

        log_n = Math.log(opts.log_n) / Math.LN2;
      } else {
        throw new Error('scrypt: missing N parameter');
      }
    }
    p = opts.p || 1;
    r = opts.r;
    dk_len = opts.dk_len || 32;
    encoding = opts.encoding;
  }

  if (p < 1){
    throw new Error('scrypt: invalid p');
  }

  /*
   if(p >2){
    p=2;
  }
  */
  if (r <= 0){
    throw new Error('scrypt: invalid r');
  }

  if (log_n < 1 || log_n > 31){
    throw new Error('scrypt: log_n must be between 1 and 31');
  }


  var N = (1<<log_n)>>>0,
      XY, V, B, tmp,tmp_buf,tmp_buf_arr,inner_buf,outer_buf;

  if (r*p >= 1<<30 || r > MAX_UINT/128/p || r > MAX_UINT/256 || N > MAX_UINT/128/r){
    throw new Error('scrypt: parameters are too large');
  }

  // Decode strings.
  if (typeof password === 'string'){
    //password = string_to_bytes(password);
    password=string_to_int8_array(password);
  }
  if (typeof salt === 'string'){
    //salt = string_to_bytes(salt);
    salt=string_to_int8_array(salt);
  }

  //if (typeof Int32Array !== 'undefined') {
    //XXX We can use Uint32Array, but Int32Array is faster in Safari.
    XY = new Int32Array(64*r);
    V = new Int32Array(32*N*r);
    tmp = new Int32Array(16);
    //B = new Int32Array(p*128*r);
    //tmp_buf=new Uint8Array(32);
   // tmp_buf_arr=new Uint8Array(96);
    //inner_buf=new Uint8Array(100);
    //outer_buf=new Uint8Array(64)
  //} else {
  //  XY = [];
  //  V = [];
  //  tmp = new Array(16);
  //  B = [];
  //  tmp_buf=new Array(32);
  //  tmp_buf_arr=new Array(96);
  //  inner_buf=new Array(68+salt.length);
  //  outer_buf=new Array(64);
  //}

  //B = PBKDF2_HMAC_SHA256_OneIter(password, salt, p*128*r);
  //B = PBKDF2_HMAC_SHA256_one_iter_fast(password, salt, p*128*r,tmp_buf,tmp_buf_arr,inner_buf,outer_buf);
  B= PBKDF2_HMAC_SHA256_one_iter_fast(password,salt,p*128*r);
  var r_32=32*r;
  var xi = 0, yi = r_32;
  var r_2=2*r;
  var r_16=r*16;
  var r_2_1_16=(r_2-1)*16;
  function smix_start(pos) {
    var i=0;
    var j=0;
    for (i = 0; i < r_32; i++) {
      j = pos + i*4;
      XY[xi+i] = ((B[j+3] & 0xff)<<24) | ((B[j+2] & 0xff)<<16) |
                 ((B[j+1] & 0xff)<<8)  | ((B[j+0] & 0xff)<<0);
    }
  }

  function smix_step1(start, end) {
    var i=0;
    for (i = start; i < end; i += 2) {
      block_copy(V, i*(r_32), XY, xi, (r_32));
      block_mix(tmp, XY, xi, yi, r);

      block_copy(V, (i+1)*(r_32), XY, yi, (r_32));
      block_mix(tmp, XY, yi, xi, r);
    }
  }

  function smix_step2(start, end) {
    var N_1=N-1;
    var j=0;
    var i=0;
    for (i = start; i < end; i += 2) {
      j = integerify(XY, xi, r) & (N_1);
      block_xor(XY, xi, V, j*(r_32), r_32);
      block_mix(tmp, XY, xi, yi, r);

      j = integerify(XY, yi, r) & (N_1);
      block_xor(XY, yi, V, j*(r_32), r_32);
      block_mix(tmp, XY, yi, xi, r);
    }
  }

  function smix_finish(pos) {
    var max=32*r;
    var i=0;
    var j=0;
    var i_4=0;
    for (i = 0; i < max; i++) {
      j = XY[i];
      i_4=i*4;
      B[pos + i_4+ 0] = (j>>>0)  & 0xff;
      B[pos + i_4 + 1] = (j>>>8)  & 0xff;
      B[pos + i_4 + 2] = (j>>>16) & 0xff;
      B[pos + i_4 + 3] = (j>>>24) & 0xff;
    }
  }

  function get_result(enc) {
      var result = PBKDF2_HMAC_SHA256_one_iter_fast(password, B, dk_len);
      if (enc === 'base64')
        result=bytes_to_b64(result);
      else if (enc === 'hex'){
        result=bytes_to_hex(result);
      }
      else if (enc === 'binary'){
        result=new Uint8Array(result);
      }
      else{
        result=bytes_to_hex(result);
      }
      return result;
  }

  // Blocking variant.
  function calculateSync() {
    var i=0;
    var i_128_r=0;
    var r_128=r*128;
    for (i = 0; i < p; i++) {
      i_128_r=(i*r_128);
      smix_start(i_128_r);
      smix_step1(0, N);
      smix_step2(0, N);
      smix_finish(i_128_r);
    }
    return get_result(encoding);
  }

    //return calculateSync();

  var i=0;
  var i_128_r=0;
  var r_128=r*128;


  for (i = 0; i < p; i++) {
    i_128_r=(i*r_128);
    smix_start(i_128_r);
    smix_step1(0, N);
    smix_step2(0, N);
    smix_finish(i_128_r);
  }

  //if(p===2){
  //  i_128_r=r_128;
  //  smix_start(i_128_r);
  //  smix_step1(0, N);
  //  smix_step2(0, N);
  //  smix_finish(i_128_r);
  //}

  //return get_result(encoding);
  outer_buf=new Uint8Array(p*128*r);
  //B = PBKDF2_HMAC_SHA256_one_iter_fast(password, salt, p*128*r,tmp_buf,tmp_buf_arr,inner_buf,outer_buf);
  //var result = PBKDF2_HMAC_SHA256_OneIter(password, B, dk_len);
  var result = PBKDF2_HMAC_SHA256_one_iter_fast(password, B, dk_len);
  if (encoding === 'base64'){
    result=bytes_to_b64(result);
  }
  else if (encoding === 'hex'){
    result=bytes_to_hex(result);
  }
  else if (encoding === 'binary'){
    result=new Uint8Array(result);
  }
  else{
    result=bytes_to_hex(result);
  }
  return result;  
}