pub fn encrypt_preimage(
agg_pk: &AggregatePublicKey,
encryption_seed: &[u8; 32],
preimage: &[u8; 32],
commitment: &Hash,
) -> CipherTextpub fn encrypt_preimage(
agg_pk: &AggregatePublicKey,
encryption_seed: &[u8; 32],
preimage: &[u8; 32],
commitment: &Hash,
) -> CipherText