Ejemplo n.º 1
0
        public void TestTwofishFileDecryption()
        {
            byte[] data = new byte[10000];
            new Random().NextBytes(data); // fill random data

            using (var senderRsa = new RSACryptoServiceProvider())
            {
                var senderPrivateKey = senderRsa.ExportParameters(true);

                using (var receiverRsa = new RSACryptoServiceProvider())
                {
                    var receiverPrivateKey = receiverRsa.ExportParameters(true);
                    var receiverPublicKey  = receiverRsa.ExportParameters(false);

                    CryptCombo   combo             = new CryptCombo(MD5.Create(), new TwofishMachine());
                    MemoryStream cryptedFileStream = new MemoryStream();

                    OriginalFile originFile = new OriginalFile(new MemoryStream(data), ".java");
                    FileCryptor  cryptor    = new FileCryptor(senderPrivateKey, receiverPublicKey);
                    cryptor.Encrypt(originFile, cryptedFileStream, combo);

                    MemoryStream  decryptedStream = new MemoryStream();
                    EncryptedFile newCryptedFile  = EncryptedFileChecker.Parse(cryptedFileStream);
                    FileDecryptor decryptor       = new FileDecryptor(receiverPrivateKey);
                    decryptor.Decrypt(newCryptedFile, decryptedStream);

                    Assert.IsTrue(decryptedStream.ToArray().SequenceEqual(data));
                }
            }
        }
Ejemplo n.º 2
0
        public void EncryptFile(OriginalFile input, FileStream output, ProgressReporter reporter = null)
        {
            var cert = new X509Certificate2(this.receiver.PublicCertificate);

            if (cert == null)
            {
                reporter?.Log("Receiver certificate error. Aborting.");
            }
            else
            {
                reporter?.Log("Verifying certificate...");

                if (CertificateValidator.VerifyCertificate(cert) is false)
                {
                    reporter?.Log("Receiver's certificate is invalid. Aborting.");
                }
                else
                {
                    reporter?.Log("Receiver's certificate is valid.");
                    reporter?.Log("Encrypting file...");
                    FileCryptor cryptor = new FileCryptor(this.currentUser.PrivateKey, ((RSACryptoServiceProvider)cert.PublicKey.Key).ExportParameters(false));
                    cryptor.Encrypt(input, output, this.combo, reporter.SetPercentage);
                    reporter?.Log("File encryption complete.");
                }
            }
        }
Ejemplo n.º 3
0
        private static void FileEncrypt()
        {
            Console.WriteLine("Введите простые числа P и Q");
            var p = ulong.Parse(Console.ReadLine() ??
                                throw new InvalidOperationException("Пустая строка - число"));
            var q = ulong.Parse(Console.ReadLine() ??
                                throw new InvalidOperationException("Пустая строка - число"));
            var fc = new FileCryptor(p, q);

            Console.WriteLine("Введите имя файла");
            fc.Encrypt(Console.ReadLine());
        }