public static byte[] GetSalt(byte[] data)
{
byte[] salt = new byte[SaltLength];
if (!ToxEncryptionFunctions.GetSalt(data, salt))
return null;
return salt;
}
public static byte[] GetSalt(byte[] data)
{
byte[] salt = new byte[SaltLength];
if (!ToxEncryptionFunctions.GetSalt(data, salt))
{
return(null);
}
return(salt);
}
public static byte[] GetSalt(byte[] data)
{
byte[] salt = new byte[ToxEncryptionFunctions.PassSaltLength()];
if (ToxEncryptionFunctions.GetSalt(data, salt) == -1)
{
return(null);
}
return(salt);
}
internal static ToxPassKey? DeriveKey(string passphrase)
{
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
var error = ToxErrorKeyDerivation.Ok;
var key = new ToxPassKey();
if (!ToxEncryptionFunctions.DeriveKeyFromPass(pp, (uint)pp.Length, ref key, ref error) || error != ToxErrorKeyDerivation.Ok)
return null;
return key;
}
public static byte[] EncryptData(byte[] data, string passphrase)
{
byte[] output = new byte[data.Length + ToxEncryptionFunctions.PassEncryptionExtraLength()];
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
if (ToxEncryptionFunctions.PassEncrypt(data, (uint)data.Length, pp, (uint)pp.Length, output) == -1)
{
return(null);
}
return(output);
}
public static byte[] DeriveKey(string passphrase)
{
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
byte[] key = new byte[ToxEncryptionFunctions.PassKeyLength()];
if (ToxEncryptionFunctions.DeriveKeyFromPass(pp, (uint)pp.Length, key) == -1)
{
return(null);
}
return(key);
}
internal static ToxPassKey? DeriveKey(string passphrase, byte[] salt)
{
if (salt.Length < SaltLength)
return null;
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
var error = ToxErrorKeyDerivation.Ok;
var key = new ToxPassKey();
if (!ToxEncryptionFunctions.DeriveKeyWithSalt(pp, (uint)pp.Length, salt, ref key, ref error) || error != ToxErrorKeyDerivation.Ok)
return null;
return key;
}
public static byte[] GetSalt(byte[] data, out ToxErrorGetSalt error)
{
byte[] salt = new byte[ToxEncryptionConstants.SaltLength];
error = ToxErrorGetSalt.Ok;
var success = ToxEncryptionFunctions.GetSalt(data, salt, ref error);
if (success && error == ToxErrorGetSalt.Ok)
{
return(salt);
}
return(null);
}
public static byte[] DeriveKey(string passphrase, byte[] salt)
{
if (salt.Length < ToxEncryptionFunctions.PassSaltLength())
{
return(null);
}
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
byte[] key = new byte[ToxEncryptionFunctions.PassKeyLength()];
if (ToxEncryptionFunctions.DeriveKeyWithSalt(pp, (uint)pp.Length, salt, key) == -1)
{
return(null);
}
return(key);
}
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, string passphrase)
{
byte[] output = new byte[data.Length + ToxEncryptionFunctions.PassEncryptionExtraLength()];
byte[] pp = Encoding.UTF8.GetBytes(passphrase);
byte[] result;
int length = ToxEncryptionFunctions.PassDecrypt(data, (uint)data.Length, pp, (uint)pp.Length, output);
if (length == -1)
{
return(null);
}
result = new byte[length];
Array.Copy(output, 0, result, 0, length);
return(result);
}
public static byte[] EncryptData(byte[] data, string password, out ToxErrorEncryption 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 = ToxErrorEncryption.Ok;
if (!ToxEncryptionFunctions.PassEncrypt(data, (uint)data.Length, passBytes, (uint)passBytes.Length, output, ref error) || error != ToxErrorEncryption.Ok)
{
return(null);
}
return(output);
}
public static byte[] EncryptData(byte[] data, ToxEncryptionKey key, out ToxErrorEncryption 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 = ToxErrorEncryption.Ok;
if (!ToxEncryptionFunctions.PassKeyEncrypt(data, (uint)data.Length, ref pass, output, ref error) || error != ToxErrorEncryption.Ok)
{
return(null);
}
return(output);
}
public static bool IsDataEncrypted(byte[] data)
{
return(ToxEncryptionFunctions.IsDataEncrypted(data));
}
public static bool IsDataEncrypted(byte[] data) => ToxEncryptionFunctions.IsDataEncrypted(data);
