Esempio n. 1
0
        public static EncryptedMessage GenerateMessage(string Sender, object message, RSACryptoServiceProvider receiver_rsa, string token)
        {
            RijndaelManaged RMCrypto = new RijndaelManaged();

            RMCrypto.GenerateIV();
            RMCrypto.GenerateKey();

            byte[] result_message = RMCrypto.getGlobalObject <IMysteryJsonConverter>().getJson(message).getBytes();

            var          ms          = new MemoryStream();
            CryptoStream CryptStream = new CryptoStream(ms, RMCrypto.CreateEncryptor(RMCrypto.Key, RMCrypto.IV), CryptoStreamMode.Write);

            CryptStream.Write(result_message, 0, result_message.Length);
            CryptStream.FlushFinalBlock();

            byte[] message_id_bytes = Guid.NewGuid().ToString().getBytes();

            RSACryptoServiceProvider my_rsa = CryptStream.getGlobalObject <IMyRsaProvider>().getMySra();

            EncryptedMessage answer = new EncryptedMessage
            {
                Sender            = Sender,
                IV                = receiver_rsa.Encrypt(RMCrypto.IV, false),
                Key               = receiver_rsa.Encrypt(RMCrypto.Key, false),
                Message           = ms.ToArray(),
                Signature         = my_rsa.SignData(result_message, new SHA1CryptoServiceProvider()),
                Token             = receiver_rsa.Encrypt(token.getBytes(), false),
                MessageID         = receiver_rsa.Encrypt(message_id_bytes, false),
                MessageIDSignaure = my_rsa.SignData(message_id_bytes, new SHA1CryptoServiceProvider())
            };

            return(answer);
        }