/*
	PIP - Platform Independent Primitives
	Base class for ethernet utils
	Copyright (C) 2018  Ivan Pelipenko peri4ko@yandex.ru

	This program is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "piethutilbase.h"
#ifdef PIP_CRYPT
#  include "picrypt.h"
#endif


PIEthUtilBase::PIEthUtilBase() {
	_crypt = false;
}


PIEthUtilBase::~PIEthUtilBase() {
}


void PIEthUtilBase::createCryptKey(const PIString & k) {
#ifdef PIP_CRYPT
	_key = PICrypt::hash("sodium_bug");
	_key = PICrypt::hash(k);
#else
	piCout << "[PIEthUtilBase] PICrypt wasn`t built!";
#endif
	_crypt = true;
}


PIByteArray PIEthUtilBase::cryptData(const PIByteArray & data) {
	if (!_crypt) return data;
	return
#ifdef PIP_CRYPT
			PICrypt::crypt(data, _key);
#else
			PIByteArray();
#endif
}


PIByteArray PIEthUtilBase::decryptData(const PIByteArray & data) {
	if (!_crypt) return data;
#ifdef PIP_CRYPT
	bool ok = false;
	PIByteArray ret = PICrypt::decrypt(data, _key, &ok);
	if (!ok) return PIByteArray();
	return ret;
#else
	return PIByteArray();
#endif
}