yescrypt and Makwa. Another alternative is Balloon hashing, which is recommended in NIST password guidelines. See also List of PBKDF2 implementations References External links – Specification of PKCS#5 v2.0. – Test vectors for PBKDF2 with HMAC-SHA1. NIST Special Publication 800-132 Recommendation for Password-Based Key Derivation Password authentication Cryptography standards Key derivation functions