private static Stream ChainEncryptedOut(Stream outputStream, PgpEncryptionKeys m_encryptionKeys)
        {
            PgpEncryptedDataGenerator encryptedDataGenerator;

            encryptedDataGenerator = new PgpEncryptedDataGenerator(SymmetricKeyAlgorithmTag.TripleDes, new SecureRandom());
            encryptedDataGenerator.AddMethod(m_encryptionKeys.PublicKey);
            return(encryptedDataGenerator.Open(outputStream, new byte[BufferSize]));
        }
 private static void OutputEncrypted(string inputFile, Stream outputStream, PgpEncryptionKeys encryptionKeys)
 {
     using (Stream encryptedOut = ChainEncryptedOut(outputStream, encryptionKeys))
     {
         FileInfo unencryptedFileInfo = new FileInfo(inputFile);
         using (Stream compressedOut = ChainCompressedOut(encryptedOut))
         {
             PgpSignatureGenerator signatureGenerator = InitSignatureGenerator(compressedOut, encryptionKeys);
             using (Stream literalOut = ChainLiteralOut(compressedOut, unencryptedFileInfo))
             {
                 using (FileStream inputFileStream = unencryptedFileInfo.OpenRead())
                 {
                     WriteOutputAndSign(compressedOut, literalOut, inputFileStream, signatureGenerator);
                     inputFileStream.Close();
                 }
             }
         }
     }
 }
        /// <summary>
        ///   ArmoredOutputStream, Base64'e benzer bir kodlama kullanır,
        ///  böylece ikili yazdırılamaz baytlar metin dostu bir şeye dönüştürülür.
        ///  Verileri e-postayla göndermek, bir siteye veya başka bir metin ortamına göndermek istiyorsanız bunu yaparsınız.
        ///  'Güvenlik açısından bir fark yaratmaz.
        /// </summary>
        /// <param name="armor"></param>
        public static void EncryptAndSign(string inputFile, string outputFile, string publicKeyFile, string privateKeyFile, string passPhrase, bool armor)
        {
            PgpEncryptionKeys encryptionKeys = new PgpEncryptionKeys(publicKeyFile, privateKeyFile, passPhrase);

            if (!File.Exists(inputFile))
            {
                throw new FileNotFoundException(String.Format("Şifrelenecek dosya [{0}] bulunamadı.", inputFile));
            }
            if (!File.Exists(publicKeyFile))
            {
                throw new FileNotFoundException(String.Format("Public Key dosyası [{0}] bulunamadı.", publicKeyFile));
            }
            if (!File.Exists(privateKeyFile))
            {
                throw new FileNotFoundException(String.Format("Private Key dosyası [{0}] bulunamadı.", privateKeyFile));
            }
            if (String.IsNullOrEmpty(passPhrase))
            {
                throw new ArgumentNullException("Geçersiz şifre.");
            }
            if (encryptionKeys == null)
            {
                throw new ArgumentNullException("Şifreleme için anahtarlar bulunamadı.");
            }

            using (Stream outputStream = File.Create(outputFile))
            {
                if (armor)
                {
                    using (ArmoredOutputStream armoredOutputStream = new ArmoredOutputStream(outputStream))
                    {
                        OutputEncrypted(inputFile, armoredOutputStream, encryptionKeys);
                    }
                }
                else
                {
                    OutputEncrypted(inputFile, outputStream, encryptionKeys);
                }
            }
        }
        private static PgpSignatureGenerator InitSignatureGenerator(Stream compressedOut, PgpEncryptionKeys m_encryptionKeys)
        {
            const bool            IsCritical            = false;
            const bool            IsNested              = false;
            PublicKeyAlgorithmTag tag                   = m_encryptionKeys.SecretKey.PublicKey.Algorithm;
            PgpSignatureGenerator pgpSignatureGenerator = new PgpSignatureGenerator(tag, HashAlgorithmTag.Sha1);

            pgpSignatureGenerator.InitSign(PgpSignature.BinaryDocument, m_encryptionKeys.PrivateKey);
            foreach (string userId in m_encryptionKeys.SecretKey.PublicKey.GetUserIds())
            {
                PgpSignatureSubpacketGenerator subPacketGenerator = new PgpSignatureSubpacketGenerator();
                subPacketGenerator.SetSignerUserId(IsCritical, userId);
                pgpSignatureGenerator.SetHashedSubpackets(subPacketGenerator.Generate());
                // Just the first one!
                break;
            }
            pgpSignatureGenerator.GenerateOnePassVersion(IsNested).Encode(compressedOut);
            return(pgpSignatureGenerator);
        }