public void PRFn_WithValidInput_ShouldReturnByteArrayWithCorrectLength()
{
// Arrange and Act
byte[] resultBytes =
CryptographyWrapper.PRFn(_length, _prfKey, _prefix, _data);
// Assert
Assert.AreEqual((int)_length, resultBytes.Length);
}
public void PRFn_WithValidInput_ShouldReturnCorrectBytes()
{
// Arrange and Act
byte[] resultBytes =
CryptographyWrapper.PRFn(_length, _prfKey, _prefix, _data);
bool resultIsCorrect =
HelperMethods.CompareBuffers(resultBytes, _prf512, (int)_length) == 0;
// Assert
Assert.IsTrue(resultIsCorrect);
}
public void PBKDF2_WithValidInput_ShouldReturnCorrectKey()
{
// Arrange and Act
byte[] derivedKey =
CryptographyWrapper.PBKDF2(_password, _salt, _iterations, _dkLen);
bool deriveKeyIsCorrect =
HelperMethods.CompareBuffers(derivedKey, _derivedKey, _dkLen) == 0;
// Assert
Assert.IsTrue(deriveKeyIsCorrect);
}
public void AESCCMEncryptBytes_WithValidCCMPInput_ShouldEncryptCorrectly()
{
// Arrange
byte[] bytesToEncrypt = new byte[_plaintext.Length];
_plaintext.CopyTo(bytesToEncrypt, 0);
// Act
CryptographyWrapper.AESCCMEncryptBytes(bytesToEncrypt, _nonce, _ctrKey, new byte[8]);
bool encryptedCorrectly =
HelperMethods.CompareBuffers(_ciphertext, bytesToEncrypt, _ciphertext.Length) == 0;
// Assert
Assert.IsTrue(encryptedCorrectly);
}
public void AESCCMEncryptBytes_WithValidCCMPInput_ShouldProduceCorrectTag()
{
// Arrange
byte[] bytesToEncrypt = new byte[_plaintext.Length];
_plaintext.CopyTo(bytesToEncrypt, 0);
byte[] tag = new byte[_tag.Length];
// Act
CryptographyWrapper.AESCCMEncryptBytes(bytesToEncrypt, _nonce, _ctrKey, tag);
bool tagIsCorrect = HelperMethods.CompareBuffers(_tag, tag, _tag.Length) == 0;
// Assert
Assert.IsTrue(tagIsCorrect);
}
