public void ThenReturnFalse(string encrypted)
{
var result =
new AESEncryptorService(TestKey).TryDecrypt(encrypted, out var decryptedValue);
result.ShouldBeFalse(decryptedValue);
}
public void ThenItShouldEncryptTheValueAndAppendSignature(string input, string encrypted)
{
var result = new AESEncryptorService(TestKey).TryDecrypt(
encrypted, out var decrypted);
result.ShouldBeTrue();
decrypted.ShouldBe(input);
}
public void ThenEncryptDecryptWorkTogetherSuccessfully()
{
var input = "What’s in a name? A rose by any other name would smell as sweet.";
var service = new AESEncryptorService(TestKey);
var encrypted = service.Encrypt(input);
var result = service.TryDecrypt(encrypted, out string decrypted);
result.ShouldBeTrue();
decrypted.ShouldBe(input);
}
public void ThenTheWrongValueIsDecrypted()
{
// If someone gets hold of the key and is thus able to re-sign contents then a modified IV
// will cause the decrypted value to be incorrect - but there's no way to know in code.
// Of course if they have the key then they're in the clear anyway! Only preserving
// this test to acknowledge how the mechanism works.
var result =
new AESEncryptorService(TestKey).TryDecrypt(
EncryptMeTamperedIvResigned, out var decryptedValue);
result.ShouldBeTrue();
decryptedValue.ShouldNotBe(EncryptMe);
}
public void ThenItShouldEncryptTheValueAndAppendSignature(string input, string expected)
{
var result = new AESEncryptorService(TestKey, TestIv).Encrypt(input);
result.ShouldBe(expected);
}
