/// <summary>
/// Decrypts binary data
/// </summary>
/// <param name="Data">Binary Data</param>
/// <param name="Key">Encryption Key</param>
/// <param name="IV">Initiation Vector</param>
/// <param name="AssociatedData">Any associated data used for authenticated encryption (AEAD).</param>
/// <returns>Decrypted Data</returns>
public override async Task <Stream> Decrypt(Stream Data, byte[] Key, byte[] IV, byte[] AssociatedData)
{
TemporaryStream Decrypted = new TemporaryStream();
try
{
Security.ChaChaPoly.ChaCha20 ChaCha20 = new Security.ChaChaPoly.ChaCha20(Key, 1, IV);
await ChaCha20.EncryptOrDecrypt(Data, Decrypted);
return(Decrypted);
}
catch (Exception ex)
{
Decrypted.Dispose();
ExceptionDispatchInfo.Capture(ex).Throw();
return(null);
}
}
/// <summary>
/// Encrypts binary data
/// </summary>
/// <param name="Data">Binary Data</param>
/// <param name="Key">Encryption Key</param>
/// <param name="IV">Initiation Vector</param>
/// <param name="AssociatedData">Any associated data used for authenticated encryption (AEAD).</param>
/// <returns>Encrypted Data</returns>
public override byte[] Encrypt(byte[] Data, byte[] Key, byte[] IV, byte[] AssociatedData)
{
Security.ChaChaPoly.ChaCha20 ChaCha20 = new Security.ChaChaPoly.ChaCha20(Key, 1, IV);
return(ChaCha20.EncryptOrDecrypt(Data));
}
/// <summary>
/// Encrypts binary data
/// </summary>
/// <param name="Data">Data to encrypt.</param>
/// <param name="Encrypted">Encrypted data will be stored here.</param>
/// <param name="Key">Encryption Key</param>
/// <param name="IV">Initiation Vector</param>
/// <param name="AssociatedData">Any associated data used for authenticated encryption (AEAD).</param>
public override Task Encrypt(Stream Data, Stream Encrypted, byte[] Key, byte[] IV, byte[] AssociatedData)
{
Security.ChaChaPoly.ChaCha20 ChaCha20 = new Security.ChaChaPoly.ChaCha20(Key, 1, IV);
return(ChaCha20.EncryptOrDecrypt(Data, Encrypted));
}