public static byte[] encrypt(byte[] input, Object key)
{
int rest = 0;
if (input.Length % 16 != 0)
{
rest = 16 - (input.Length % 16);
}
byte[] input_copy = new byte[input.Length + rest];
byte[] output = new byte[input_copy.Length];
Array.Copy(input, 0, input_copy, 0, input.Length);
for (int i = 0; i < rest; i++)
{
input_copy[input.Length + i] = 32;
}
int count = input_copy.Length / 16;
for (int idx = 0; idx < count; idx++)
{
Array.Copy(Twofish_Algorithm.blockEncrypt(input_copy, (uint)idx * 16, key), 0, output, idx * 16, 16);
}
return(output);
}
private static object ConvertedKey(string key)
{
if (!convertedKeys.ContainsKey(key))
{
convertedKeys.TryAdd(key, Twofish_Algorithm.makeKey(convertKey(key)));
}
return(convertedKeys[key]);
}
private static String toString(byte[] ba, int offset, int length)
{
char[] buf = new char[length * 2];
for (int i = offset, j = 0, k; i < offset + length;)
{
k = ba[i++];
buf[j++] = HEX_DIGITS[(Twofish_Algorithm.ror((uint)k, 32, 4) /* >>> 4*/) & 0x0F];
buf[j++] = HEX_DIGITS[k & 0x0F];
}
return(new String(buf));
}
public static byte[] decrypt(byte[] input, Object key)
{
byte[] output = new byte[input.Length];
int count = input.Length / 16;
for (int idx = 0; idx < count; idx++)
{
Array.Copy(Twofish_Algorithm.blockDecrypt(input, (uint)idx * 16, key), 0, output, idx * 16, 16);
}
return(output);
}
