public void Cipher_FileContainsThreeBytes()
{
var e = BigNumber.FromBytes(new[] { 17 });
var n = BigNumber.FromBytes(new[] { 3, 81, 217, 6, 4, 255, 114, 123, 36 });
var key = new PublicKey(e, n);
var sourceFile = Path.Combine(testFolder, "source.txt");
File.WriteAllBytes(sourceFile, new byte[] { 49, 50, 51 });
var destinationFile = Path.Combine(testFolder, "destination.rsa");
cipher = new RsaFileCipher(new FileFactory(5));
cipher.Cipher(key, sourceFile, destinationFile);
var expectedBytes = new byte[] {
5, // версия
9, 0, // размер блока
3, 0, 0, 0, // размер исходного файла
0, 0, 0, 0, // размер исходного файла
32, 44, 185, 98, // хэш
172, 89, 7, 91, // хэш
150, 75, 7, 21, // хэш
45, 35, 75, 112, // хэш
51, 136, 212, 124, 2, 205, 81, 39, 34
};
TestHelper.CheckFile(destinationFile, expectedBytes);
Assert.AreEqual(ProcessStatus.Complete, cipher.Status);
}
public void Cipher_FileContainsFiveBytes()
{
var e = BigNumber.FromBytes(new[] { 7 });
var n = BigNumber.FromBytes(new[] { 217, 118, 184, 189, 114, 147, 142, 61 });
var key = new PublicKey(e, n);
var sourceFile = Path.Combine(testFolder, "source.txt");
File.WriteAllBytes(sourceFile, new byte[] { 104, 101, 108, 108, 111 });
var destinationFile = Path.Combine(testFolder, "destination.rsa");
cipher = new RsaFileCipher(new FileFactory(10));
cipher.Cipher(key, sourceFile, destinationFile);
var expectedBytes = new byte[] {
10, // версия
8, 0, // размер блока
5, 0, 0, 0, // размер исходного файла
0, 0, 0, 0, // размер исходного файла
93, 65, 64, 42, // хэш
188, 75, 42, 118, // хэш
185, 113, 157, 145, // хэш
16, 23, 197, 146, // хэш
18, 85, 184, 86, 212, 72, 244, 4
};
TestHelper.CheckFile(destinationFile, expectedBytes);
Assert.AreEqual(ProcessStatus.Complete, cipher.Status);
}
public void Cipher_SourceFileDoesntExist()
{
var e = BigNumber.FromBytes(new[] { 17 });
var n = BigNumber.FromBytes(new[] { 19, 241, 93, 252, 193, 101, 145, 14 });
var key = new PublicKey(e, n);
cipher = new RsaFileCipher(new FileFactory(56));
Assert.Throws(typeof(SourceFileNotFoundException), () => cipher.Cipher(key, "hello", "world"));
Assert.AreEqual(ProcessStatus.Stopped, cipher.Status);
}
public void Cipher_CheckStatusIfErrorOccured()
{
var e = BigNumber.FromBytes(new[] { 7 });
var n = BigNumber.FromBytes(new[] { 217, 118, 184, 189, 114, 147, 142, 61 });
var key = new PublicKey(e, n);
var sourceFile = Path.Combine(testFolder, "source.txt");
File.WriteAllBytes(sourceFile, new byte[] { 104, 101, 108, 108, 111 });
var destinationFile = Path.Combine(testFolder, "destination.rsa");
var fileFactory = new Mock <IFileFactory>();
fileFactory.Setup(x => x.CreateFileReader(It.IsAny <string>(), It.IsAny <short>())).Throws(new Exception());
cipher = new RsaFileCipher(fileFactory.Object);
Assert.Throws(typeof(Exception), () => cipher.Cipher(key, sourceFile, destinationFile));
Assert.AreEqual(ProcessStatus.Stopped, cipher.Status);
}
public void Decipher_ProcessWasStopped()
{
// public key: 0101#0F433A164419165B
// private key: 02CA8D18E051C519#0F433A164419165B
var sourceFileName = Path.Combine(testFolder, "source.rsa");
var destinationFileName = Path.Combine(testFolder, "destination.bin");
var e = BigNumber.FromBytes(new[] { 1, 1 });
var d = BigNumber.FromBytes(new[] { 25, 197, 81, 224, 24, 141, 202, 2 });
var n = BigNumber.FromBytes(new[] { 91, 22, 25, 68, 22, 58, 67, 15 });
var privateKey = new PrivateKey(d, n);
var publicKey = new PublicKey(e, n);
var cipher = new RsaFileCipher(fileFactory);
var initialFileName = Path.Combine(testFolder, "initial.exe");
File.WriteAllBytes(initialFileName, new byte[1000]);
cipher.Cipher(publicKey, initialFileName, sourceFileName);
decipher.BlockCompleted += (sender, args) => decipher.Stop();
decipher.Decipher(privateKey, sourceFileName, destinationFileName);
Assert.AreEqual(ProcessStatus.Stopped, decipher.Status);
}
public void Cipher_Decipher()
{
var outputFileName = Path.Combine(testFolder, "outputFileName.rsa");
var temporaryFileName = Path.Combine(testFolder, "temporary.bin");
environmentHelper.Setup(x => x.GetTempFileName()).Returns(temporaryFileName);
var fileFactory = new FileFactory(4);
var rsaFileCipher = new RsaFileCipher(fileFactory);
var fileUnifier = new FileUnifier();
var manager = new CipherManager(rsaFileCipher, fileUnifier, environmentHelper.Object, messageHelper.Object);
// public key: 05#B781262C2090AD
// private key: 6E1A49FEAC0471#B781262C2090AD
var e = BigNumber.FromInt(5);
var d = BigNumber.FromBytes(new[] { 113, 4, 172, 254, 73, 26, 110 });
var n = BigNumber.FromBytes(new[] { 173, 144, 32, 44, 38, 129, 183 });
var publicKey = new PublicKey(e, n);
var privateKey = new PrivateKey(d, n);
var sourceFileName = Path.Combine(testFolder, "file.bin");
File.WriteAllBytes(sourceFileName, new byte[] { 45, 129, 240 });
var directoryInfoWrapper = new DirectoryInfoWrapper(testFolder);
var fileInfoWrapper = new FileInfoWrapper(new FileInfo(sourceFileName), directoryInfoWrapper);
var fileEntity = new FileEntity(fileInfoWrapper);
manager.Cipher(publicKey, new FileSystemEntity[] { fileEntity }, outputFileName);
var decipherManager = new DecipherManager(environmentHelper.Object, new RsaFileDecipher(fileFactory),
messageHelper.Object, fileUnifier);
var outputPath = Path.Combine(testFolder, "outputPath");
decipherManager.Decipher(privateKey, outputFileName, outputPath);
Assert.IsTrue(Directory.Exists(outputPath));
var fileName = Path.Combine(outputPath, "file.bin");
Assert.IsTrue(File.Exists(fileName));
TestHelper.CheckFile(fileName, new byte[] { 45, 129, 240 });
}
public void Cipher_KeyIsNull()
{
cipher = new RsaFileCipher(new FileFactory(56));
Assert.Throws(typeof(ArgumentNullException), () => cipher.Cipher(null, "hello", "world"));
Assert.AreEqual(ProcessStatus.Stopped, cipher.Status);
}