public static byte[] EncryptMessage(byte[] key, byte[] nonce, byte[] message, ulong sessionID, out byte[] signature)
{
SMB2TransformHeader transformHeader = CreateTransformHeader(nonce, message.Length, sessionID);
byte[] associatedata = transformHeader.GetAssociatedData();
return(AesCcm.Encrypt(key, nonce, message, associatedata, SMB2TransformHeader.SignatureLength, out signature));
}
public static byte[] DecryptMessage(byte[] key, SMB2TransformHeader transformHeader, byte[] encryptedMessage)
{
byte[] associatedData = transformHeader.GetAssociatedData();
byte[] aesCcmNonce = ByteReader.ReadBytes(transformHeader.Nonce, 0, AesCcmNonceLength);
return(AesCcm.DecryptAndAuthenticate(key, aesCcmNonce, encryptedMessage, associatedData, transformHeader.Signature));
}
