Pseudo Random Key
Instances2Eq, ByteArrayAccess
Eq (PRK a)Defined in cryptonite-0.30 · Crypto.KDF.HKDFByteArrayAccess (PRK a)Defined in cryptonite-0.30 · Crypto.KDF.HKDF
Modulecryptonite-0.30Haskell2010
Crypto.KDF.HKDF
Key Derivation Function based on HMAC
See RFC5869
Synopsis
- data PRK
- value extract
- value extractSkip
- value expand
- Packagecryptonite-0.30
- Exports4
- LanguageHaskell2010
- LicenceBSD-3-Clause
- SourceHKDF.hs
value
extract :: (HashAlgorithm a, ByteArrayAccess salt, ByteArrayAccess ikm)=> saltSalt
-> ikmInput Keying Material
-> PRK aPseudo random key
Extract a Pseudo Random Key using the parameter and the underlaying hash mechanism
Create a PRK directly from the input key material.
Only use when guaranteed to have a good quality and random data to use directly as key. This effectively skip a HMAC with key=salt and data=key.
value
expand :: (HashAlgorithm a, ByteArrayAccess info, ByteArray out)=> PRK aPseudo Random Key
-> infoOptional context and application specific information
-> IntOutput length in bytes
-> outOutput data
Expand key material of specific length out of the parameters