public void Decrypt_throws_on_mismatching_tag(CcmTestCase tc)
{
// Change ciphertext
var ciphertext = (byte[])tc.Ciphertext.Clone();
++ciphertext[ciphertext.Length / 2];
VerifyCcmMismatchThrown(tc.Key, ciphertext, tc.Iv, tc.Adata, tc.TagLength);
// Change iv
var iv = (byte[])tc.Iv.Clone();
++iv[iv.Length / 2];
VerifyCcmMismatchThrown(tc.Key, tc.Ciphertext, iv, tc.Adata, tc.TagLength);
// Change adata
var adata = (byte[])tc.Adata.Clone();
++adata[adata.Length / 2];
VerifyCcmMismatchThrown(tc.Key, tc.Ciphertext, tc.Iv, adata, tc.TagLength);
}
public void Decrypt_returns_correct_value(CcmTestCase tc)
{
var plaintext = AesCcm.Decrypt(tc.Key, tc.Ciphertext, tc.Iv, tc.Adata, tc.TagLength);
Assert.Equal(tc.Plaintext, plaintext);
}
