func Box(message []byte, nonce Nonce, pk PublicKey, sk SecretKey) []byte {
result := make([]byte, C.crypto_box_ZEROBYTES+len(message))
copy(result[C.crypto_box_ZEROBYTES:], message)
C.crypto_box(array(result), array(result), C.ulonglong(len(result)), array(nonce), array(pk), array(sk))
return result[C.crypto_box_BOXZEROBYTES:]
}
func Box(cypherTextOut []byte, message []byte, nonce, pk, sk []byte) int {
checkSize(cypherTextOut, len(message), "cypher text output")
checkSize(nonce, BoxNonceBytes(), "nonce")
checkSize(pk, BoxPublicKeyBytes(), "public key")
checkSize(sk, BoxSecretKeyBytes(), "secret key")
return int(C.crypto_box((*C.uchar)(&cypherTextOut[0]),
(*C.uchar)(&message[0]), (C.ulonglong)(len(message)),
(*C.uchar)(&nonce[0]),
(*C.uchar)(&pk[0]),
(*C.uchar)(&sk[0])))
}
func CryptoBox(m []byte, n []byte, pk []byte, sk []byte) ([]byte, int) {
support.CheckSize(n, CryptoBoxNonceBytes(), "nonce")
support.CheckSize(pk, CryptoBoxPublicKeyBytes(), "public key")
support.CheckSize(sk, CryptoBoxSecretKeyBytes(), "sender's secret key")
c := make([]byte, len(m))
exit := int(C.crypto_box(
(*C.uchar)(&c[0]),
(*C.uchar)(&m[0]),
(C.ulonglong)(len(m)),
(*C.uchar)(&n[0]),
(*C.uchar)(&pk[0]),
(*C.uchar)(&sk[0])))
return c, exit
}