def iseal
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/aead/chacha20poly1305.bend as Chacha20poly1305import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/aead/chacha20poly1305.bend as I
63def iseal(+key: List<&2, U32>, +nonce: List<&2, U32>, +aad: List<&2, U32>, +ct: List<&2, U32>) -> List<&2, U32>:
64 List.append(&2, U32, ct, I.tag(key, nonce, aad, ct))