func boxSealOpen(messageOut []byte, cypherText []byte, pk, sk []byte) int {
support.CheckSize(messageOut, BoxMacBytes()+len(cypherText), "message output")
support.CheckSize(pk, BoxPublicKeyBytes(), "public key")
support.CheckSize(sk, BoxSecretKeyBytes(), "secret key")
return int(C.crypto_box_seal_open(
(*C.uchar)(&messageOut[0]),
(*C.uchar)(&cypherText[0]),
(C.ulonglong)(len(cypherText)),
(*C.uchar)(&pk[0]),
(*C.uchar)(&sk[0])))
}
func CryptoBoxSealOpen(c []byte, pk []byte, sk []byte) ([]byte, int) {
support.CheckSize(pk, CryptoBoxPublicKeyBytes(), "public key")
support.CheckSize(sk, CryptoBoxSecretKeyBytes(), "secret key")
m := make([]byte, len(c)-CryptoBoxMacBytes())
exit := int(C.crypto_box_seal_open(
(*C.uchar)(&m[0]),
(*C.uchar)(&c[0]),
(C.ulonglong)(len(c)),
(*C.uchar)(&pk[0]),
(*C.uchar)(&sk[0])))
return m, exit
}