lotus-sdk/dist/lib/bitcore/mnemonic/pbkdf2.js

Central repository for several classes of tools for integrating with, and building for, the Lotusia ecosystem

import { pbkdf2 as noblePbkdf2 } from '@noble/hashes/pbkdf2';
import { sha512 } from '@noble/hashes/sha512';
export function pbkdf2(key, salt, iterations, dkLen) {
    const hLen = 64;
    if (dkLen > (Math.pow(2, 32) - 1) * hLen) {
        throw new Error('Requested key length too long');
    }
    if (typeof key !== 'string' && !Buffer.isBuffer(key)) {
        throw new TypeError('key must a string or Buffer');
    }
    if (typeof salt !== 'string' && !Buffer.isBuffer(salt)) {
        throw new TypeError('salt must a string or Buffer');
    }
    const keyBytes = typeof key === 'string'
        ? new TextEncoder().encode(key)
        : new Uint8Array(key);
    const saltBytes = typeof salt === 'string'
        ? new TextEncoder().encode(salt)
        : new Uint8Array(salt);
    const result = noblePbkdf2(sha512, keyBytes, saltBytes, {
        c: iterations,
        dkLen: dkLen,
    });
    return Buffer.from(result);
}