extractStep
suspend fun HKDF.extractStep(salt: ByteArray?, inputKeyMaterial: ByteArray): KmmResult<ByteArray>(source)
HDKF extract step generating a pseudo-random key from salt and ikm. NOT A FULL KDF!
Parameters
salt
optional salt. If not provided, defaults to ByteArray(outputLength), i.e. "a string of HashLen zeros"
inputKeyMaterial
input key material