public void DecryptBadDataThrows()
{
DpapiCryptographer dpapi = new DpapiCryptographer();
byte[] cipherText = new byte[] { 0, 1 };
dpapi.Decrypt(cipherText, entropy);
}
private byte[] UnprotectBytes(byte[] ciphertext)
{
FileKeyAlgorithmPairStorageProviderData fileKeyAlgorithmPairStorageProviderData = GetFileKeyAlgorithmPairStorageProviderData();
DpapiCryptographer dpapi = new DpapiCryptographer(fileKeyAlgorithmPairStorageProviderData.DpapiSettings.Mode);
return(dpapi.Decrypt(ciphertext, fileKeyAlgorithmPairStorageProviderData.DpapiSettings.Entropy));
}
public void DecryptWithEmptyCipherTextThrows()
{
byte[] b = new byte[] { };
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.CurrentUser);
dpapi.Decrypt(b);
}
public void DecryptWithDifferentEntropyThanEncrypt()
{
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(DpapiStorageMode.Machine);
byte[] encrypted = dpapi.Encrypt(plainBytes, entropy1);
dpapi.Decrypt(encrypted, entropy2);
}
public void EncryptAndDecryptUserMode()
{
DpapiStorageMode mode = DpapiStorageMode.User;
DpapiCryptographer dpapi = new DpapiCryptographer(mode);
byte[] cipherText = dpapi.Encrypt(this.plainText);
Assert.IsFalse(CryptographyUtility.CompareBytes(this.plainText, cipherText));
byte[] decryptedText = dpapi.Decrypt(cipherText);
Assert.IsTrue(CryptographyUtility.CompareBytes(this.plainText, decryptedText));
}
public void DecryptWithDifferentEntropyThanEncrypt()
{
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(DpapiStorageMode.Machine);
byte[] encrypted = dpapi.Encrypt(plainBytes, entropy1);
dpapi.Decrypt(encrypted, entropy2);
}
public void EncryptAndDecryptMachineMode()
{
DpapiStorageMode mode = DpapiStorageMode.Machine;
DpapiCryptographer dpapi = new DpapiCryptographer(mode);
byte[] cipherText = dpapi.Encrypt(this.plainText, this.entropy);
Assert.IsFalse(CryptographyUtility.CompareBytes(this.plainText, cipherText));
byte[] decryptedText = dpapi.Decrypt(cipherText, this.entropy);
Assert.IsTrue(CryptographyUtility.CompareBytes(this.plainText, decryptedText));
}
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 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 DecryptWithEmptyCipherTextThrows()
{
byte[] b = new byte[] { };
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.CurrentUser);
dpapi.Decrypt(b);
}
public void DecryptWithNullCipherText()
{
DpapiCryptographer dpapi = new DpapiCryptographer(DpapiStorageMode.User);
dpapi.Decrypt(null);
}
public void DecryptWithNullCipherTextThrows()
{
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.CurrentUser);
dpapi.Decrypt(null);
}
public void DecryptWithNullCipherTextThrows()
{
DpapiCryptographer dpapi = new DpapiCryptographer(DataProtectionScope.CurrentUser);
dpapi.Decrypt(null);
}
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 DecryptBadDataThrows()
{
DpapiCryptographer dpapi = new DpapiCryptographer();
byte[] cipherText = new byte[] { 0, 1 };
dpapi.Decrypt(cipherText, entropy);
}
public void DecryptWithNullCipherText()
{
DpapiCryptographer dpapi = new DpapiCryptographer(DpapiStorageMode.User);
dpapi.Decrypt(null);
}
