at.favre.lib:hkdf (maven): A standalone Java implementation of HMAC-based key derivation function (HKDF) defined in RFC 5869 first described by Hugo Krawczyk. HKDF follows the "extract-then-expand" paradigm compatible with NIST Special Publication 800-56C "Two-Step Key Derivation" scheme. 
Keywords: 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