[TestCase("Password", "18cKBWuDPW5jVXn580mAxEAouNkRbMXq392WfQ/QFNk=", "RbWZAwKpPx6zFLLuyubeR61i+QpLULw2kvHIGYrUYR4=")] // Used below. ensure it's normally valid
public void EncryptThenDecrypt_DecryptsSuccessfully(string toEncrypt, string encryptionKey, string authenticationKey)
{
// Arrange
var encryptionKeyBytes = Convert.FromBase64String(encryptionKey);
var authenticationKeyBytes = Convert.FromBase64String(authenticationKey);
// Act
string encrypted = AESThenHMACEncryptionHelper.SimpleEncrypt(toEncrypt, encryptionKeyBytes, authenticationKeyBytes);
string decrypted = AESThenHMACEncryptionHelper.SimpleDecrypt(encrypted, encryptionKeyBytes, authenticationKeyBytes);
// Assert
Assert.AreEqual(toEncrypt, decrypted);
}
[TestCase("PmUtd9koxdSmhtJyy3pQqQEe8743cs7zDRDyGRt7i6k=", "PE6K9jw/KQMgHxpzUJpKuzlrIQxUZjzvCnVe2wMEheo=")] // Authentication key invalid
public void EncryptThenDecrypt_WhereEncryptionKeyIsInvalid_DoesNotDecrypt(string encryptionKey, string authenticationKey)
{
// Arrange
string toEncrypt = "Password";
var encryptionKeyBytes = Convert.FromBase64String(encryptionKey);
var authenticationKeyBytes = Convert.FromBase64String(authenticationKey);
string encrypted = AESThenHMACEncryptionHelper.SimpleEncrypt(toEncrypt, encryptionKeyBytes, authenticationKeyBytes);
var deencryptionKey = Convert.FromBase64String("8oI/pQNdEx6aWNATrKVsUH0gU3wW3j05furiqLFax5k=");
var deauthentiationKey = Convert.FromBase64String("PE6K9jw/KQMgHxpzUJpKuzlrIQxUZjzvCnVe2wMEheo=");
// Act
// Assert
Assert.Throws <CryptographicException>(() => AESThenHMACEncryptionHelper.SimpleDecrypt(encrypted, deencryptionKey, deauthentiationKey));
}