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assets_js_lib_sjcl.js
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// Select components from sjcl to suit the crypto operations bip39 requires.
//// base.js
/** @fileOverview Javascript cryptography implementation.
*
* Crush to remove comments, shorten variable names and
* generally reduce transmission size.
*
* @author Emily Stark
* @author Mike Hamburg
* @author Dan Boneh
*/
"use strict";
/*jslint indent: 2, bitwise: false, nomen: false, plusplus: false, white: false, regexp: false */
/*global document, window, escape, unescape, module, require, Uint32Array */
/** @namespace The Stanford Javascript Crypto Library, top-level namespace. */
const sjcl = {
/** @namespace Symmetric ciphers. */
cipher: {},
/** @namespace Hash functions. Right now only SHA256 is implemented. */
hash: {},
/** @namespace Key exchange functions. Right now only SRP is implemented. */
keyexchange: {},
/** @namespace Block cipher modes of operation. */
mode: {},
/** @namespace Miscellaneous. HMAC and PBKDF2. */
misc: {},
/**
* @namespace Bit array encoders and decoders.
*
* @description
* The members of this namespace are functions which translate between
* SJCL's bitArrays and other objects (usually strings). Because it
* isn't always clear which direction is encoding and which is decoding,
* the method names are "fromBits" and "toBits".
*/
codec: {},
/** @namespace Exceptions. */
exception: {
/** @constructor Ciphertext is corrupt. */
corrupt: function(message) {
this.toString = function() {
return "CORRUPT: " + this.message;
};
this.message = message;
},
/** @constructor Invalid parameter. */
invalid: function(message) {
this.toString = function() {
return "INVALID: " + this.message;
};
this.message = message;
},
/** @constructor Bug or missing feature in SJCL. @constructor */
bug: function(message) {
this.toString = function() {
return "BUG: " + this.message;
};
this.message = message;
},
/** @constructor Something isn't ready. */
notReady: function(message) {
this.toString = function() {
return "NOT READY: " + this.message;
};
this.message = message;
}
}
};
if (typeof module !== 'undefined' && module.exports) {
module.exports = sjcl;
}
if (typeof define === "function") {
define([], function() {
return sjcl;
});
}
//// bitArray.js
sjcl.bitArray = {
bitSlice: function(a, bstart, bend) {
a = sjcl.bitArray._shiftRight(a.slice(bstart / 32), 32 - (bstart & 31)).slice(1);
return (bend === undefined) ? a : sjcl.bitArray.clamp(a, bend - bstart);
},
extract: function(a, bstart, blength) {
let x, sh = Math.floor((-bstart - blength) & 31);
if ((bstart + blength - 1 ^ bstart) & -32) {
x = (a[bstart / 32 | 0] << (32 - sh)) ^ (a[bstart / 32 + 1 | 0] >>> sh);
} else {
x = a[bstart / 32 | 0] >>> sh;
}
return x & ((1 << blength) - 1);
},
concat: function(a1, a2) {
if (a1.length === 0 || a2.length === 0) {
return a1.concat(a2);
}
let last = a1[a1.length - 1],
shift = sjcl.bitArray.getPartial(last);
if (shift === 32) {
return a1.concat(a2);
} else {
return sjcl.bitArray._shiftRight(a2, shift, last | 0, a1.slice(0, a1.length - 1));
}
},
bitLength: function(a) {
let l = a.length,
x;
if (l === 0) {
return 0;
}
x = a[l - 1];
return (l - 1) * 32 + sjcl.bitArray.getPartial(x);
},
clamp: function(a, len) {
if (a.length * 32 < len) {
return a;
}
a = a.slice(0, Math.ceil(len / 32));
let l = a.length;
len = len & 31;
if (l > 0 && len) {
a[l - 1] = sjcl.bitArray.partial(len, a[l - 1] & 0x80000000 >> (len - 1), 1);
}
return a;
},
partial: function(len, x, _end) {
if (len === 32) {
return x;
}
return (_end ? x | 0 : x << (32 - len)) + len * 0x10000000000;
},
getPartial: function(x) {
return Math.round(x / 0x10000000000) || 32;
},
equal: function(a, b) {
if (sjcl.bitArray.bitLength(a) !== sjcl.bitArray.bitLength(b)) {
return false;
}
let x = 0;
for (let i = 0; i < a.length; i++) {
x |= a[i] ^ b[i];
}
return (x === 0);
},
_shiftRight: function(a, shift, carry, out) {
let i, last2 = 0,
shift2;
if (out === undefined) {
out = [];
}
for (; shift >= 32; shift -= 32) {
out.push(carry);
carry = 0;
}
if (shift === 0) {
return out.concat(a);
}
for (i = 0; i < a.length; i++) {
out.push(carry | a[i] >>> shift);
carry = a[i] << (32 - shift);
}
last2 = a.length ? a[a.length - 1] : 0;
shift2 = sjcl.bitArray.getPartial(last2);
out.push(sjcl.bitArray.partial(shift + shift2 & 31, (shift + shift2 > 32) ? carry : out.pop(), 1));
return out;
},
_xor4: function(x, y) {
return [x[0] ^ y[0], x[1] ^ y[1], x[2] ^ y[2], x[3] ^ y[3]];
},
byteswapM: function(a) {
let i, v, m = 0xff00;
for (i = 0; i < a.length; ++i) {
v = a[i];
a[i] = (v >>> 24) | ((v >>> 8) & m) | ((v & m) << 8) | (v << 24);
}
return a;
}
};
//// codecString.js
sjcl.codec.utf8String = {
fromBits: function(arr) {
let out = "",
bl = sjcl.bitArray.bitLength(arr),
i, tmp;
for (i = 0; i < bl / 8; i++) {
if ((i & 3) === 0) {
tmp = arr[i / 4];
}
out += String.fromCharCode(tmp >>> 24);
tmp <<= 8;
}
return decodeURIComponent(escape(out));
},
toBits: function(str) {
str = unescape(encodeURIComponent(str));
let out = [],
i, tmp = 0;
for (i = 0; i < str.length; i++) {
tmp = tmp << 8 | str.charCodeAt(i);
if ((i & 3) === 3) {
out.push(tmp);
tmp = 0;
}
}
if (i & 3) {
out.push(sjcl.bitArray.partial(8 * (i & 3), tmp));
}
return out;
}
};
//// codecHex.js
sjcl.codec.hex = {
fromBits: function(arr) {
let out = "";
for (let i = 0; i < arr.length; i++) {
out += ((arr[i] | 0) + 0xF00000000000).toString(16).substr(4);
}
return out.substr(0, sjcl.bitArray.bitLength(arr) / 4);
},
toBits: function(str) {
let i, out = [],
len;
str = str.replace(/\s|0x/g, "");
len = str.length;
str = str + "00000000";
for (i = 0; i < str.length; i += 8) {
out.push(parseInt(str.substr(i, 8), 16) ^ 0);
}
return sjcl.bitArray.clamp(out, len * 4);
}
};
//// codecBase64.js (base64 + base64url)
sjcl.codec.base64 = {
_chars: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",
fromBits: function(arr, _noEquals, _url) {
let out = "",
i, bits = 0,
c = sjcl.codec.base64._chars,
ta = 0,
bl = sjcl.bitArray.bitLength(arr);
if (_url) {
c = c.substr(0, 62) + '-_';
}
for (i = 0; out.length * 6 < bl;) {
out += c.charAt((ta ^ arr[i] >>> bits) >>> 26);
if (bits < 6) {
ta = arr[i] << (6 - bits);
bits += 26;
i++;
} else {
ta <<= 6;
bits -= 6;
}
}
while ((out.length & 3) && !_noEquals) {
out += "=";
}
return out;
},
toBits: function(str, _url) {
str = str.replace(/\s|=/g, '');
let out = [],
i, bits = 0,
c = sjcl.codec.base64._chars,
ta = 0,
x;
if (_url) {
c = c.substr(0, 62) + '-_';
}
for (i = 0; i < str.length; i++) {
x = c.indexOf(str.charAt(i));
if (x < 0) {
throw new sjcl.exception.invalid("this isn't base64!");
}
if (bits > 26) {
bits -= 26;
out.push(ta ^ x >>> bits);
ta = x << (32 - bits);
} else {
bits += 6;
ta ^= x << (32 - bits);
}
}
if (bits & 56) {
out.push(sjcl.bitArray.partial(bits & 56, ta, 1));
}
return out;
}
};
sjcl.codec.base64url = {
fromBits: function(arr) {
return sjcl.codec.base64.fromBits(arr, 1, 1);
},
toBits: function(str) {
return sjcl.codec.base64.toBits(str, 1);
}
};
//// AES.js
sjcl.cipher.aes = function(key) {
if (!this._tables[0][0][0]) {
this._precompute();
}
let i, j, tmp,
encKey, decKey,
sbox = this._tables[0][4],
decTable = this._tables[1],
keyLen = key.length,
rcon = 1;
if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
throw new sjcl.exception.invalid("invalid aes key size");
}
this._key = [encKey = key.slice(0), decKey = []];
for (i = keyLen; i < 4 * keyLen + 28; i++) {
tmp = encKey[i - 1];
if (i % keyLen === 0 || (keyLen === 8 && i % keyLen === 4)) {
tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255];
if (i % keyLen === 0) {
tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
rcon = rcon << 1 ^ (rcon >> 7) * 283;
}
}
encKey[i] = encKey[i - keyLen] ^ tmp;
}
for (j = 0; i; j++, i--) {
tmp = encKey[j & 3 ? i : i - 4];
if (i <= 4 || j < 4) {
decKey[j] = tmp;
} else {
decKey[j] = decTable[0][sbox[tmp >>> 24]] ^
decTable[1][sbox[tmp >> 16 & 255]] ^
decTable[2][sbox[tmp >> 8 & 255]] ^
decTable[3][sbox[tmp & 255]];
}
}
};
sjcl.cipher.aes.prototype = {
encrypt: function(data) {
return this._crypt(data, 0);
},
decrypt: function(data) {
return this._crypt(data, 1);
},
_tables: [
[
[],
[],
[],
[],
[]
],
[
[],
[],
[],
[],
[]
]
],
_precompute: function() {
let encTable = this._tables[0],
decTable = this._tables[1],
sbox = encTable[4],
sboxInv = decTable[4],
i, x, xInv, d = [],
th = [],
x2, x4, x8, s, tEnc, tDec;
for (i = 0; i < 256; i++) {
th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
}
for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
s = s >> 8 ^ s & 255 ^ 99;
sbox[x] = s;
sboxInv[s] = x;
x8 = d[x4 = d[x2 = d[x]]];
tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
tEnc = d[s] * 0x101 ^ s * 0x1010100;
for (i = 0; i < 4; i++) {
encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
}
}
for (i = 0; i < 5; i++) {
encTable[i] = encTable[i].slice(0);
decTable[i] = decTable[i].slice(0);
}
},
_crypt: function(input, dir) {
if (input.length !== 4) {
throw new sjcl.exception.invalid("invalid aes block size");
}
let key = this._key[dir],
a = input[0] ^ key[0],
b = input[dir ? 3 : 1] ^ key[1],
c = input[2] ^ key[2],
d = input[dir ? 1 : 3] ^ key[3],
a2, b2, c2,
nInnerRounds = key.length / 4 - 2,
i,
kIndex = 4,
out = [0, 0, 0, 0],
table = this._tables[dir],
t0 = table[0],
t1 = table[1],
t2 = table[2],
t3 = table[3],
sbox = table[4];
for (i = 0; i < nInnerRounds; i++) {
a2 = t0[a >>> 24] ^ t1[b >> 16 & 255] ^ t2[c >> 8 & 255] ^ t3[d & 255] ^ key[kIndex];
b2 = t0[b >>> 24] ^ t1[c >> 16 & 255] ^ t2[d >> 8 & 255] ^ t3[a & 255] ^ key[kIndex + 1];
c2 = t0[c >>> 24] ^ t1[d >> 16 & 255] ^ t2[a >> 8 & 255] ^ t3[b & 255] ^ key[kIndex + 2];
d = t0[d >>> 24] ^ t1[a >> 16 & 255] ^ t2[b >> 8 & 255] ^ t3[c & 255] ^ key[kIndex + 3];
kIndex += 4;
a = a2;
b = b2;
c = c2;
}
for (i = 0; i < 4; i++) {
out[dir ? 3 & -i : i] =
sbox[a >>> 24] << 24 ^
sbox[b >> 16 & 255] << 16 ^
sbox[c >> 8 & 255] << 8 ^
sbox[d & 255] ^
key[kIndex++];
a2 = a;
a = b;
b = c;
c = d;
d = a2;
}
return out;
}
};
//// gcm.js
sjcl.mode.gcm = {
name: "gcm",
encrypt: function(prf, plaintext, iv, adata, tlen) {
let out, data = plaintext.slice(0),
w = sjcl.bitArray;
tlen = tlen || 128;
adata = adata || [];
out = sjcl.mode.gcm._ctrMode(true, prf, data, adata, iv, tlen);
return w.concat(out.data, out.tag);
},
decrypt: function(prf, ciphertext, iv, adata, tlen) {
let out, data = ciphertext.slice(0),
tag, w = sjcl.bitArray,
l = w.bitLength(data);
tlen = tlen || 128;
adata = adata || [];
if (tlen <= l) {
tag = w.bitSlice(data, l - tlen);
data = w.bitSlice(data, 0, l - tlen);
} else {
tag = data;
data = [];
}
out = sjcl.mode.gcm._ctrMode(false, prf, data, adata, iv, tlen);
if (!w.equal(out.tag, tag)) {
throw new sjcl.exception.corrupt("gcm: tag doesn't match");
}
return out.data;
},
_galoisMultiply: function(x, y) {
let i, j, xi, Zi, Vi, lsb_Vi, w = sjcl.bitArray,
xor = w._xor4;
Zi = [0, 0, 0, 0];
Vi = y.slice(0);
for (i = 0; i < 128; i++) {
xi = (x[Math.floor(i / 32)] & (1 << (31 - i % 32))) !== 0;
if (xi) {
Zi = xor(Zi, Vi);
}
lsb_Vi = (Vi[3] & 1) !== 0;
for (j = 3; j > 0; j--) {
Vi[j] = (Vi[j] >>> 1) | ((Vi[j - 1] & 1) << 31);
}
Vi[0] = Vi[0] >>> 1;
if (lsb_Vi) {
Vi[0] = Vi[0] ^ (0xe1 << 24);
}
}
return Zi;
},
_ghash: function(H, Y0, data) {
let Yi, i, l = data.length;
Yi = Y0.slice(0);
for (i = 0; i < l; i += 4) {
Yi[0] ^= 0xffffffff & data[i];
Yi[1] ^= 0xffffffff & data[i + 1];
Yi[2] ^= 0xffffffff & data[i + 2];
Yi[3] ^= 0xffffffff & data[i + 3];
Yi = sjcl.mode.gcm._galoisMultiply(Yi, H);
}
return Yi;
},
_ctrMode: function(encrypt, prf, data, adata, iv, tlen) {
let H, J0, S0, enc, i, ctr, tag, last, l, bl, abl, ivbl, w = sjcl.bitArray;
l = data.length;
bl = w.bitLength(data);
abl = w.bitLength(adata);
ivbl = w.bitLength(iv);
H = prf.encrypt([0, 0, 0, 0]);
if (ivbl === 96) {
J0 = iv.slice(0);
J0 = w.concat(J0, [1]);
} else {
J0 = sjcl.mode.gcm._ghash(H, [0, 0, 0, 0], iv);
J0 = sjcl.mode.gcm._ghash(H, J0, [0, 0, Math.floor(ivbl / 0x100000000), ivbl & 0xffffffff]);
}
S0 = sjcl.mode.gcm._ghash(H, [0, 0, 0, 0], adata);
ctr = J0.slice(0);
tag = S0.slice(0);
if (!encrypt) {
tag = sjcl.mode.gcm._ghash(H, S0, data);
}
for (i = 0; i < l; i += 4) {
ctr[3]++;
enc = prf.encrypt(ctr);
data[i] ^= enc[0];
data[i + 1] ^= enc[1];
data[i + 2] ^= enc[2];
data[i + 3] ^= enc[3];
}
data = w.clamp(data, bl);
if (encrypt) {
tag = sjcl.mode.gcm._ghash(H, S0, data);
}
last = [
Math.floor(abl / 0x100000000), abl & 0xffffffff,
Math.floor(bl / 0x100000000), bl & 0xffffffff
];
tag = sjcl.mode.gcm._ghash(H, tag, last);
enc = prf.encrypt(J0);
tag[0] ^= enc[0];
tag[1] ^= enc[1];
tag[2] ^= enc[2];
tag[3] ^= enc[3];
return {
tag: w.bitSlice(tag, 0, tlen),
data: data
};
}
};
//// sha512.js
sjcl.hash.sha512 = function(hash) {
if (!this._key[0]) {
this._precompute();
}
if (hash) {
this._h = hash._h.slice(0);
this._buffer = hash._buffer.slice(0);
this._length = hash._length;
} else {
this.reset();
}
};
sjcl.hash.sha512.hash = function(data) {
return (new sjcl.hash.sha512()).update(data).finalize();
};
sjcl.hash.sha512.prototype = {
blockSize: 1024,
reset: function() {
this._h = this._init.slice(0);
this._buffer = [];
this._length = 0;
return this;
},
update: function(data) {
if (typeof data === "string") {
data = sjcl.codec.utf8String.toBits(data);
}
let i, b = this._buffer = sjcl.bitArray.concat(this._buffer, data),
ol = this._length,
nl = this._length = ol + sjcl.bitArray.bitLength(data),
offset = 0;
for (i = 1024 + ol & -1024; i <= nl; i += 1024) {
let block = b.slice(offset, offset + 32);
offset += 32;
this._block(block);
}
b.splice(0, offset);
return this;
},
finalize: function() {
let i, b = this._buffer,
h = this._h;
b = sjcl.bitArray.concat(b, [sjcl.bitArray.partial(1, 1)]);
for (i = b.length + 4; i & 31; i++) {
b.push(0);
}
b.push(0);
b.push(0);
b.push(Math.floor(this._length / 0x100000000));
b.push(this._length | 0);
while (b.length) {
this._block(b.splice(0, 32));
}
this.reset();
return h;
},
_init: [],
_initr: [0xbcc908, 0xcaa73b, 0x94f82b, 0x1d36f1, 0xe682d1, 0x3e6c1f, 0x41bd6b, 0x7e2179],
_key: [],
_keyr: [0x28ae22, 0xef65cd, 0x4d3b2f, 0x89dbbc, 0x48b538, 0x05d019, 0x194f9b, 0x6d8118,
0x030242, 0x706fbe, 0xe4b28c, 0xffb4e2, 0x7b896f, 0x1696b1, 0xc71235, 0x692694,
0xf14ad2, 0x4f25e3, 0x8cd5b5, 0xac9c65, 0x2b0275, 0xa6e483, 0x41fbd4, 0x1153b5,
0x66dfab, 0xb43210, 0xfb213f, 0xef0ee4, 0xa88fc2, 0x0aa725, 0x03826f, 0x0e6e70,
0xd22ffc, 0x26c926, 0xc42aed, 0x95b3df, 0xaf63de, 0x77b2a8, 0xedaee6, 0x82353b,
0xf10364, 0x423001, 0xf89791, 0x54be30, 0xef5218, 0x65a910, 0x71202a, 0xbbd1b8,
0xd2d0c8, 0x41ab53, 0x8eeb99, 0x9b48a8, 0xc95a63, 0x418acb, 0x63e373, 0xb2b8a3,
0xefb2fc, 0x172f60, 0xf0ab72, 0x6439ec, 0x631e28, 0x82bde9, 0xc67915, 0x72532b,
0x26619c, 0xc0c207, 0xe0eb1e, 0x6ed178, 0x176fba, 0xc898a6, 0xf90dae, 0x1c471b,
0x047d84, 0xc72493, 0xc9bebc, 0x100d4c, 0x3e42b6, 0x657e2a, 0xd6faec, 0x475817
],
_precompute: function() {
let i = 0,
prime = 2,
factor;
function frac(x) {
return (x - Math.floor(x)) * 0x100000000 | 0;
}
function frac2(x) {
return (x - Math.floor(x)) * 0x10000000000 & 0xff;
}
outer: for (; i < 80; prime++) {
for (factor = 2; factor * factor <= prime; factor++) {
if (prime % factor === 0) {
continue outer;
}
}
if (i < 8) {
this._init[i * 2] = frac(Math.pow(prime, 1 / 2));
this._init[i * 2 + 1] = (frac2(Math.pow(prime, 1 / 2)) << 24) | this._initr[i];
}
this._key[i * 2] = frac(Math.pow(prime, 1 / 3));
this._key[i * 2 + 1] = (frac2(Math.pow(prime, 1 / 3)) << 24) | this._keyr[i];
i++;
}
},
_block: function(words) {
let i, wrh, wrl,
w = words.slice(0),
h = this._h,
k = this._key,
h0h = h[0],
h0l = h[1],
h1h = h[2],
h1l = h[3],
h2h = h[4],
h2l = h[5],
h3h = h[6],
h3l = h[7],
h4h = h[8],
h4l = h[9],
h5h = h[10],
h5l = h[11],
h6h = h[12],
h6l = h[13],
h7h = h[14],
h7l = h[15];
let ah = h0h,
al = h0l,
bh = h1h,
bl = h1l,
ch = h2h,
cl = h2l,
dh = h3h,
dl = h3l,
eh = h4h,
el = h4l,
fh = h5h,
fl = h5l,
gh = h6h,
gl = h6l,
hh = h7h,
hl = h7l;
for (i = 0; i < 80; i++) {
if (i < 16) {
wrh = w[i * 2];
wrl = w[i * 2 + 1];
} else {
let gamma0xh = w[(i - 15) * 2];
let gamma0xl = w[(i - 15) * 2 + 1];
let gamma0h =
((gamma0xl << 31) | (gamma0xh >>> 1)) ^
((gamma0xl << 24) | (gamma0xh >>> 8)) ^
(gamma0xh >>> 7);
let gamma0l =
((gamma0xh << 31) | (gamma0xl >>> 1)) ^
((gamma0xh << 24) | (gamma0xl >>> 8)) ^
((gamma0xh << 25) | (gamma0xl >>> 7));
let gamma1xh = w[(i - 2) * 2];
let gamma1xl = w[(i - 2) * 2 + 1];
let gamma1h =
((gamma1xl << 13) | (gamma1xh >>> 19)) ^
((gamma1xh << 3) | (gamma1xl >>> 29)) ^
(gamma1xh >>> 6);
let gamma1l =
((gamma1xh << 13) | (gamma1xl >>> 19)) ^
((gamma1xl << 3) | (gamma1xh >>> 29)) ^
((gamma1xh << 26) | (gamma1xl >>> 6));
let wr7h = w[(i - 7) * 2];
let wr7l = w[(i - 7) * 2 + 1];
let wr16h = w[(i - 16) * 2];
let wr16l = w[(i - 16) * 2 + 1];
wrl = gamma0l + wr7l;
wrh = gamma0h + wr7h + ((wrl >>> 0) < (gamma0l >>> 0) ? 1 : 0);
wrl += gamma1l;
wrh += gamma1h + ((wrl >>> 0) < (gamma1l >>> 0) ? 1 : 0);
wrl += wr16l;
wrh += wr16h + ((wrl >>> 0) < (wr16l >>> 0) ? 1 : 0);
}
w[i * 2] = wrh |= 0;
w[i * 2 + 1] = wrl |= 0;
let chh = (eh & fh) ^ (~eh & gh);
let chl = (el & fl) ^ (~el & gl);
let majh = (ah & bh) ^ (ah & ch) ^ (bh & ch);
let majl = (al & bl) ^ (al & cl) ^ (bl & cl);
let sigma0h = ((al << 4) | (ah >>> 28)) ^ ((ah << 30) | (al >>> 2)) ^ ((ah << 25) | (al >>> 7));
let sigma0l = ((ah << 4) | (al >>> 28)) ^ ((al << 30) | (ah >>> 2)) ^ ((al << 25) | (ah >>> 7));
let sigma1h = ((el << 18) | (eh >>> 14)) ^ ((el << 14) | (eh >>> 18)) ^ ((eh << 23) | (el >>> 9));
let sigma1l = ((eh << 18) | (el >>> 14)) ^ ((eh << 14) | (el >>> 18)) ^ ((el << 23) | (eh >>> 9));
let krh = k[i * 2];
let krl = k[i * 2 + 1];
let t1l = hl + sigma1l;
let t1h = hh + sigma1h + ((t1l >>> 0) < (hl >>> 0) ? 1 : 0);
t1l += chl;
t1h += chh + ((t1l >>> 0) < (chl >>> 0) ? 1 : 0);
t1l += krl;
t1h += krh + ((t1l >>> 0) < (krl >>> 0) ? 1 : 0);
t1l = t1l + wrl | 0;
t1h += wrh + ((t1l >>> 0) < (wrl >>> 0) ? 1 : 0);
let t2l = sigma0l + majl;
let t2h = sigma0h + majh + ((t2l >>> 0) < (sigma0l >>> 0) ? 1 : 0);
hh = gh;
hl = gl;
gh = fh;
gl = fl;
fh = eh;
fl = el;
el = (dl + t1l) | 0;
eh = (dh + t1h + ((el >>> 0) < (dl >>> 0) ? 1 : 0)) | 0;
dh = ch;
dl = cl;
ch = bh;
cl = bl;
bh = ah;
bl = al;
al = (t1l + t2l) | 0;
ah = (t1h + t2h + ((al >>> 0) < (t1l >>> 0) ? 1 : 0)) | 0;
}
h0l = h[1] = (h0l + al) | 0;
h[0] = (h0h + ah + ((h0l >>> 0) < (al >>> 0) ? 1 : 0)) | 0;
h1l = h[3] = (h1l + bl) | 0;
h[2] = (h1h + bh + ((h1l >>> 0) < (bl >>> 0) ? 1 : 0)) | 0;
h2l = h[5] = (h2l + cl) | 0;
h[4] = (h2h + ch + ((h2l >>> 0) < (cl >>> 0) ? 1 : 0)) | 0;
h3l = h[7] = (h3l + dl) | 0;
h[6] = (h3h + dh + ((h3l >>> 0) < (dl >>> 0) ? 1 : 0)) | 0;
h4l = h[9] = (h4l + el) | 0;
h[8] = (h4h + eh + ((h4l >>> 0) < (el >>> 0) ? 1 : 0)) | 0;
h5l = h[11] = (h5l + fl) | 0;
h[10] = (h5h + fh + ((h5l >>> 0) < (fl >>> 0) ? 1 : 0)) | 0;
h6l = h[13] = (h6l + gl) | 0;
h[12] = (h6h + gh + ((h6l >>> 0) < (gl >>> 0) ? 1 : 0)) | 0;
h7l = h[15] = (h7l + hl) | 0;
h[14] = (h7h + hh + ((h7l >>> 0) < (hl >>> 0) ? 1 : 0)) | 0;
}
};
//// hmac.js
sjcl.misc.hmac = function(key, Hash) {
this._hash = Hash = Hash || sjcl.hash.sha256;
let exKey = [
[],
[]
],
i,
bs = Hash.prototype.blockSize / 32;
this._baseHash = [new Hash(), new Hash()];
if (key.length > bs) {
key = Hash.hash(key);
}
for (i = 0; i < bs; i++) {
exKey[0][i] = key[i] ^ 0x36363636;
exKey[1][i] = key[i] ^ 0x5C5C5C5C;
}
this._baseHash[0].update(exKey[0]);
this._baseHash[1].update(exKey[1]);
this._resultHash = new Hash(this._baseHash[0]);
};
sjcl.misc.hmac.prototype.encrypt = sjcl.misc.hmac.prototype.mac = function(data) {
if (!this._updated) {
this.update(data);
return this.digest(data);
} else {
throw new sjcl.exception.invalid("encrypt on already updated hmac called!");
}
};
sjcl.misc.hmac.prototype.reset = function() {
this._resultHash = new this._hash(this._baseHash[0]);
this._updated = false;
};
sjcl.misc.hmac.prototype.update = function(data) {
this._updated = true;
this._resultHash.update(data);
};
sjcl.misc.hmac.prototype.digest = function() {
let w = this._resultHash.finalize(),
result = new(this._hash)(this._baseHash[1]).update(w).finalize();
this.reset();
return result;
};
//// pbkdf2.js
sjcl.misc.pbkdf2 = function(password, salt, count, length, Prff) {
count = count || 1000;
if (length < 0 || count < 0) {
throw sjcl.exception.invalid("invalid params to pbkdf2");
}
if (typeof password === "string") {
password = sjcl.codec.utf8String.toBits(password);
}
if (typeof salt === "string") {
salt = sjcl.codec.utf8String.toBits(salt);
}
Prff = Prff || sjcl.misc.hmac;
let prf = new Prff(password),
u, ui, i, j, k, out = [],
b = sjcl.bitArray;
for (k = 1; 32 * out.length < (length || 1); k++) {
u = ui = prf.encrypt(b.concat(salt, [k]));
for (i = 1; i < count; i++) {
ui = prf.encrypt(ui);
for (j = 0; j < ui.length; j++) {
u[j] ^= ui[j];
}
}
out = out.concat(u);
}
if (length) {
out = b.clamp(out, length);
}
return out;
};