public void DecryptWithDifferentEntropyThanEncryptThrows()
{
byte[] plainBytes = new byte[] {0, 1, 2, 3, 4};
byte[] entropy1 = new byte[16];
byte[] entropy2 = new byte[16];
CryptographyUtility.GetRandomBytes(entropy1);
CryptographyUtility.GetRandomBytes(entropy2);
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.LocalMachine);
byte[] encrypted = dpapi.Encrypt(plainBytes, entropy1);
dpapi.Decrypt(encrypted, entropy2);
}
public void EncryptAndDecryptUserMode()
{
DataProtectionScope mode = DataProtectionScope.CurrentUser;
DpapiCryptographer dpapi = new DpapiCryptographer(mode);
byte[] cipherText = dpapi.Encrypt(plainText);
Assert.IsFalse(CryptographyUtility.CompareBytes(plainText, cipherText));
byte[] decryptedText = dpapi.Decrypt(cipherText);
Assert.IsTrue(CryptographyUtility.CompareBytes(plainText, decryptedText));
}
public void EncryptWithZeroLengthTextThrows()
{
byte [] b = new byte [] {};
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.LocalMachine);
dpapi.Encrypt(b, entropy);
}
public void EncryptWithNullPlainTextThrows()
{
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.CurrentUser);
dpapi.Encrypt(null);
}