public void Test_DecryptFile_with_append_encryption_data()
{
var testFilePath = Path.GetTempFileName();
var appendEncryptionData = true;
var aesDecryptionResult = new AesDecryptionResult();
var testFileStringContentRead = "";
var errorMessage = "";
File.WriteAllText(testFilePath, _testString);
var aesEncryptionResult = _aes128cbcHmacSha256.EncryptFile(testFilePath, testFilePath, _password, false, appendEncryptionDataToOutputFile: appendEncryptionData);
if (aesEncryptionResult.Success)
{
aesDecryptionResult = _aes128cbcHmacSha256.DecryptFile(testFilePath, testFilePath, _password, false, hasEncryptionDataAppendedInInputFile: appendEncryptionData);
if (aesDecryptionResult.Success)
{
testFileStringContentRead = File.ReadAllText(testFilePath);
}
else
{
errorMessage = aesDecryptionResult.Message;
}
}
else
{
errorMessage = aesEncryptionResult.Message;
}
Assert.IsTrue((aesEncryptionResult.Success && aesDecryptionResult.Success && testFileStringContentRead.Equals(_testString)), errorMessage);
}
private static ExitCode RunDecryptOptionsAndReturnExitCode(DecryptOptions decryptOptions)
{
AesDecryptionResult aesDecryptionResult = null;
switch (decryptOptions.InputType.ToLower())
{
case "string":
{
aesDecryptionResult = (decryptOptions.Algorithm.ToLower()) switch
{
"aes128cbc" => new AE_AES_128_CBC_HMAC_SHA_256().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password),
"aes192cbc" => new AE_AES_192_CBC_HMAC_SHA_384().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password),
"aes256cbc" => new AE_AES_256_CBC_HMAC_SHA_512().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password),
"aes128gcm" => new AEAD_AES_128_GCM().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password, decryptOptions.AssociatedData),
"aes192gcm" => new AEAD_AES_192_GCM().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password, decryptOptions.AssociatedData),
"aes256gcm" => new AEAD_AES_256_GCM().DecryptString(decryptOptions.InputToBeDecrypted, decryptOptions.Password, decryptOptions.AssociatedData),
_ => new AesDecryptionResult()
{
Success = false, Message = $"Unknown algorithm \"{decryptOptions.Algorithm}\"."
},
};
}
break;
case "file":
{
switch (decryptOptions.Algorithm.ToLower())
{
case "aes128cbc":
{
using (var progressBar = new ProgressBar())
{
var aes128 = new AE_AES_128_CBC_HMAC_SHA_256();
aes128.OnDecryptionProgress += (percentageDone, message) => { progressBar.Report((double)percentageDone / 100); };
aes128.OnDecryptionMessage += (msg) => { progressBar.WriteLine(msg); };
aesDecryptionResult = aes128.DecryptFile(decryptOptions.InputToBeDecrypted, decryptOptions.OutputFilePath, decryptOptions.Password, decryptOptions.DeleteEncryptedFile);
}
}
break;
case "aes192cbc":
{
using (var progressBar = new ProgressBar())
{
var aes192 = new AE_AES_192_CBC_HMAC_SHA_384();
aes192.OnDecryptionProgress += (percentageDone, message) => { progressBar.Report((double)percentageDone / 100); };
aes192.OnDecryptionMessage += (msg) => { progressBar.WriteLine(msg); };
aesDecryptionResult = aes192.DecryptFile(decryptOptions.InputToBeDecrypted, decryptOptions.OutputFilePath, decryptOptions.Password, decryptOptions.DeleteEncryptedFile);
}
}
break;
case "aes256cbc":
{
using (var progressBar = new ProgressBar())
{
var aes256 = new AE_AES_256_CBC_HMAC_SHA_512();
aes256.OnDecryptionProgress += (percentageDone, message) => { progressBar.Report((double)percentageDone / 100); };
aes256.OnDecryptionMessage += (msg) => { progressBar.WriteLine(msg); };
aesDecryptionResult = aes256.DecryptFile(decryptOptions.InputToBeDecrypted, decryptOptions.OutputFilePath, decryptOptions.Password, decryptOptions.DeleteEncryptedFile);
}
}
break;
case "aes128gcm":
case "aes192gcm":
case "aes256gcm":
aesDecryptionResult = new AesDecryptionResult()
{
Success = false, Message = $"Algorithm \"{decryptOptions.Algorithm}\" currently not available for file decryption."
};
break;
default:
aesDecryptionResult = new AesDecryptionResult()
{
Success = false, Message = $"Unknown algorithm \"{decryptOptions.Algorithm}\"."
};
break;
}
}
break;
default:
aesDecryptionResult = new AesDecryptionResult()
{
Success = false, Message = $"Unknown input type \"{decryptOptions.InputType}\"."
};
break;
}
if (aesDecryptionResult.Success)
{
Console.WriteLine((decryptOptions.InputType.ToLower().Equals("string") ? aesDecryptionResult.DecryptedDataString : aesDecryptionResult.Message));
return(ExitCode.Sucess);
}
else
{
Console.WriteLine(aesDecryptionResult.Message);
return(ExitCode.Error);
}
}