private byte[] SerializeAndEncrypt(IEnumerable <int> safeByteIdList, byte[] encryptionKey)
{
var serialization = Serialize(safeByteIdList);
var encrypted = _encryptor.Encrypt(serialization, encryptionKey);
return(encrypted);
}
public void Protect(byte[] userData)
{
if (userData == null)
{
throw new ArgumentNullException(nameof(userData));
}
var encryptedBytes = _encryptor.Encrypt(userData, _key);
SetBytesToByteArray(
source: encryptedBytes,
target: ref userData);
}
private void Encrypt(byte b)
{
//Mix the with arbitrary bytes
_realBytePosition = _fastRandom.GetInt(0, SaltSize);
var arbitraryBytes = _fastRandom.GetBytes(SaltSize);
RuntimeHelper.ExecuteCodeWithGuaranteedCleanup(
//Action
() =>
{
arbitraryBytes[_realBytePosition] = b;
//Get key
_encryptionKey = _fastRandom.GetBytes(KeySize);
//Encrypt
var encryptedBuffer = _encryptor.Encrypt(arbitraryBytes, _encryptionKey);
RuntimeHelper.ExecuteCodeWithGuaranteedCleanup(
//Action
() =>
{
//Add arbitrary bytes
_encryptedByteLength = encryptedBuffer.Length;
_encryptedByte = GetMemoryProtectableSizedBytes(encryptedBuffer);
},
//Cleanup
() =>
{
if (encryptedBuffer != null)
{
Array.Clear(encryptedBuffer, 0, encryptedBuffer.Length);
}
});
},
//Cleanup
() =>
{
Array.Clear(arbitraryBytes, 0, arbitraryBytes.Length);
});
}
