public static byte[] Decrypt(byte[] data, string password, out ToxErrorDecryption error)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
if (password == null)
{
throw new ArgumentNullException(nameof(password));
}
byte[] plain = new byte[data.Length - ToxEncryptionConstants.EncryptionExtraLength];
byte[] passBytes = ToxConstants.Encoding.GetBytes(password);
error = ToxErrorDecryption.Ok;
var success = ToxEncryptionFunctions.Pass.Decrypt(data, (uint)data.Length, passBytes, (uint)passBytes.Length, plain, ref error);
if (success && error == ToxErrorDecryption.Ok)
{
return(plain);
}
return(null);
}
public static byte[] DecryptData(byte[] data, ToxEncryptionKey key, out ToxErrorDecryption error)
{
if (data == null)
throw new ArgumentNullException("data");
if (key == null)
throw new ArgumentNullException("key");
byte[] output = new byte[data.Length - EncryptionExtraLength];
var pass = key.ToPassKey();
error = ToxErrorDecryption.Ok;
if (!ToxEncryptionFunctions.PassKeyDecrypt(data, (uint)data.Length, ref pass, output, ref error) || error != ToxErrorDecryption.Ok)
return null;
return output;
}
public static byte[] DecryptData(byte[] data, ToxEncryptionKey key, out ToxErrorDecryption error)
{
if (data == null)
throw new ArgumentNullException("data");
if (key == null)
throw new ArgumentNullException("key");
byte[] output = new byte[data.Length - EncryptionExtraLength];
var pass = key.ToPassKey();
error = ToxErrorDecryption.Ok;
if (!ToxEncryptionFunctions.PassKeyDecrypt(data, (uint)data.Length, ref pass, output, ref error) || error != ToxErrorDecryption.Ok)
return null;
return output;
}
public byte[] Decrypt(byte[] data, out ToxErrorDecryption error)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
byte[] plain = new byte[data.Length - ToxEncryptionConstants.EncryptionExtraLength];
error = ToxErrorDecryption.Ok;
var success = ToxEncryptionFunctions.Key.Decrypt(this.handle, data, (uint)data.Length, plain, ref error);
if (success && error == ToxErrorDecryption.Ok)
{
return(plain);
}
return(null);
}
public static byte[] DecryptData(byte[] data, string password, out ToxErrorDecryption error)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (password == null)
{
throw new ArgumentNullException("password");
}
byte[] output = new byte[data.Length - EncryptionExtraLength];
byte[] passBytes = Encoding.UTF8.GetBytes(password);
error = ToxErrorDecryption.Ok;
if (!ToxEncryptionFunctions.PassDecrypt(data, (uint)data.Length, passBytes, (uint)passBytes.Length, output, ref error) || error != ToxErrorDecryption.Ok)
{
return(null);
}
return(output);
}
internal static extern bool PassKeyDecrypt(byte[] data, uint length, ref ToxPassKey key, byte[] output, ref ToxErrorDecryption error);
internal static extern bool PassDecrypt(byte[] data, uint length, byte[] passphrase, uint passphraseLength, byte[] output, ref ToxErrorDecryption error);
internal static extern bool PassDecrypt(byte[] data, uint length, byte[] passphrase, uint passphraseLength, byte[] output, ref ToxErrorDecryption error);
internal static extern bool PassKeyDecrypt(byte[] data, uint length, ref ToxPassKey key, byte[] output, ref ToxErrorDecryption error);
public static extern Boolean Decrypt(ToxEncryptionKeyHandle key, Byte[] cipher, SizeT length, Byte[] plain, ref ToxErrorDecryption error);
public static extern Boolean Decrypt(Byte[] data, SizeT length, Byte[] passphrase, SizeT passphraseLength, Byte[] output, ref ToxErrorDecryption error);
