public FpeCharDecryptor(FpeEngine fpeEngine, byte[] key, byte[] tweak, char[] alphabet)
{
this.fpeEngine = fpeEngine;
alphabetMapper = new BasicAlphabetMapper(alphabet);
fpeEngine.Init(false, new FpeParameters(new KeyParameter(key), alphabetMapper.Radix, tweak));
}
private byte[] process(FpeEngine fpeEngine, byte[] bytes)
{
byte[] rv = new byte[bytes.Length];
fpeEngine.ProcessBlock(bytes, 0, bytes.Length, rv, 0);
return(rv);
}
public FpeCharDecryptor(FpeEngine fpeEngine, byte[] key, char[] alphabet) : this(fpeEngine, key, new byte[0], alphabet)
{
}