public void TestPdfEncryption()
{
// This test does not use TestFileEncryption because it contains
// some timing measurements for large files.
// Comment this file out to get time measurements for a large file
// string test_file_path = "../../test_big.pdf"
string test_file_path = "../../test.pdf";
IEncryption enc = new TwoFishEncryption(new TestConfiguration());
Console.WriteLine("Read: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
byte[] test_file = File.ReadAllBytes(test_file_path);
Console.WriteLine("Encrypt: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
byte[] encrypted_file = enc.Encrypt(test_file);
Console.WriteLine("Decrypt: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
byte[] decrypted_file = enc.Decrypt(encrypted_file);
Console.WriteLine("Write: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
File.WriteAllBytes("encrypted.pdf", encrypted_file);
Console.WriteLine("Write: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
File.WriteAllBytes("decrypted.pdf", decrypted_file);
Console.WriteLine("Compare: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
Assert.IsFalse(encrypted_file.SequenceEqual(test_file));
Console.WriteLine("Compare: {0}", DateTime.Now.ToString("HH:mm:ss tt"));
Assert.IsTrue(decrypted_file.SequenceEqual(test_file));
}
public string encryptFile(IConfiguration conf)
{
System.IO.File.Copy(file_path, getEncryptedFilePath(), overwrite:true);
var enc = new TwoFishEncryption(conf);
byte[] encrypted_file = enc.Encrypt(File.ReadAllBytes(getEncryptedFilePath()));
File.WriteAllBytes(getEncryptedFilePath(), encrypted_file);
return encrypted_file_path;
}
public void TestStringEncryption()
{
string test_string = "Some string to encrypt";
IEncryption enc = new TwoFishEncryption( new TestConfiguration() );
string encrypted_string = enc.Encrypt(test_string);
string decrypted_string = enc.Decrypt(encrypted_string);
Console.WriteLine("test string='{0}', encrypted string='{1}', decrypted string='{2}'",
test_string, encrypted_string, decrypted_string);
Assert.AreNotEqual(test_string, encrypted_string);
Assert.AreNotEqual(decrypted_string, encrypted_string);
Assert.AreEqual(test_string, decrypted_string);
}
public void DownloadFile(List<string> storage_path, string file_path)
{
var enc = new TwoFishEncryption(conf);
var ne = new NameEncoder.NameEncoder();
var str = ne.Encode(storage_path[0]);
string tmp = System.IO.Path.GetTempPath();
// Download the file first
dropBoxStorage.DownloadFile("/" + str, tmp);
// Then decrypt it and save to the right dir
byte[] decrypted_file = enc.Decrypt(File.ReadAllBytes(tmp+str));
File.WriteAllBytes(file_path, decrypted_file);
File.Delete(tmp + str);
}
private void TestFileEncryption( string file_extension )
{
string test_file_path = "../../test." + file_extension;
IEncryption enc = new TwoFishEncryption(new TestConfiguration());
byte[] test_file = File.ReadAllBytes(test_file_path);
byte[] encrypted_file = enc.Encrypt(test_file);
byte[] decrypted_file = enc.Decrypt(encrypted_file);
File.WriteAllBytes("encrypted."+file_extension, encrypted_file);
File.WriteAllBytes("decrypted."+file_extension, decrypted_file);
Assert.IsFalse(encrypted_file.SequenceEqual(test_file));
int org_len = decrypted_file.Length;
Array.Resize(ref decrypted_file, test_file.Length);
Assert.IsTrue(decrypted_file.SequenceEqual(test_file));
Assert.IsTrue(test_file.Length - org_len < 10);
}
