prf_ock

sapling_crypto::note_encryption

Function prf_ock 

Source 
pub fn prf_ock(
    ovk: &OutgoingViewingKey,
    cv: &ValueCommitment,
    cmu_bytes: &[u8; 32],
    ephemeral_key: &EphemeralKeyBytes,
) -> OutgoingCipherKey
Expand description

Sapling PRF^ock.

Implemented per section 5.4.2 of the Zcash Protocol Specification.