public static int CryptoOnetimeauthVerify(byte[] H, int Hoffset, byte[] Inv, int Invoffset, long Inlen, byte[] K)
{
byte[] correct = new byte[16];
Poly1305.CryptoOnetimeauth(correct, 0, Inv, Invoffset, Inlen, K);
return(Verify16.CryptoVerify(H, Hoffset, correct));
}
public static int CryptoSecretbox(byte[] C, byte[] M, long Mlen, byte[] N, byte[] K)
{
if (Mlen < 32)
{
return(-1);
}
Xsalsa20.CryptoStreamXor(C, M, Mlen, N, K);
Poly1305.CryptoOnetimeauth(C, 16, C, 32, Mlen - 32, C);
for (int i = 0; i < 16; ++i)
{
C[i] = 0;
}
return(0);
}
