Function zcash_primitives::note_encryption::try_sapling_compact_note_decryption

pub fn try_sapling_compact_note_decryption(
    ivk: &Fs, 
    epk: &Point<Bls12, PrimeOrder>, 
    cmu: &Fr, 
    enc_ciphertext: &[u8]
) -> Option<(Note<Bls12>, PaymentAddress<Bls12>)>

Trial decryption of the compact note plaintext by the recipient for light clients.

Attempts to decrypt and validate the first 52 bytes of enc_ciphertext using the given ivk. If successful, the corresponding Sapling note is returned, along with the PaymentAddress to which the note was sent.

Implements the procedure specified in ZIP 307.