46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
var bytes_1 = require("@ethersproject/bytes");
|
||
|
|
var sha2_1 = require("@ethersproject/sha2");
|
||
|
|
function pbkdf2(password, salt, iterations, keylen, hashAlgorithm) {
|
||
|
|
password = bytes_1.arrayify(password);
|
||
|
|
salt = bytes_1.arrayify(salt);
|
||
|
|
var hLen;
|
||
|
|
var l = 1;
|
||
|
|
var DK = new Uint8Array(keylen);
|
||
|
|
var block1 = new Uint8Array(salt.length + 4);
|
||
|
|
block1.set(salt);
|
||
|
|
//salt.copy(block1, 0, 0, salt.length)
|
||
|
|
var r;
|
||
|
|
var T;
|
||
|
|
for (var i = 1; i <= l; i++) {
|
||
|
|
//block1.writeUInt32BE(i, salt.length)
|
||
|
|
block1[salt.length] = (i >> 24) & 0xff;
|
||
|
|
block1[salt.length + 1] = (i >> 16) & 0xff;
|
||
|
|
block1[salt.length + 2] = (i >> 8) & 0xff;
|
||
|
|
block1[salt.length + 3] = i & 0xff;
|
||
|
|
//let U = createHmac(password).update(block1).digest();
|
||
|
|
var U = bytes_1.arrayify(sha2_1.computeHmac(hashAlgorithm, password, block1));
|
||
|
|
if (!hLen) {
|
||
|
|
hLen = U.length;
|
||
|
|
T = new Uint8Array(hLen);
|
||
|
|
l = Math.ceil(keylen / hLen);
|
||
|
|
r = keylen - (l - 1) * hLen;
|
||
|
|
}
|
||
|
|
//U.copy(T, 0, 0, hLen)
|
||
|
|
T.set(U);
|
||
|
|
for (var j = 1; j < iterations; j++) {
|
||
|
|
//U = createHmac(password).update(U).digest();
|
||
|
|
U = bytes_1.arrayify(sha2_1.computeHmac(hashAlgorithm, password, U));
|
||
|
|
for (var k = 0; k < hLen; k++)
|
||
|
|
T[k] ^= U[k];
|
||
|
|
}
|
||
|
|
var destPos = (i - 1) * hLen;
|
||
|
|
var len = (i === l ? r : hLen);
|
||
|
|
//T.copy(DK, destPos, 0, len)
|
||
|
|
DK.set(bytes_1.arrayify(T).slice(0, len), destPos);
|
||
|
|
}
|
||
|
|
return bytes_1.hexlify(DK);
|
||
|
|
}
|
||
|
|
exports.pbkdf2 = pbkdf2;
|