https://github.com/patrickfav/hkdf

A standalone Java 7 implementation of HMAC-based key derivation function (HKDF) defined in RFC 5869 first described by Hugo Krawczyk. HKDF follows the "extract-then-expand" paradigm which is compatible to NIST 800-56C Rev. 1 two step KDF

800-56c android-compatibility cryptography hash hkdf hmac hmac-sha1 hmac-sha256 hmac-sha512 java java7 jdk7 kdf key-derivation-function nist rfc5869 two-step-key-derivation

Last synced: 19 Aug 2025