/**
 * crypt.h: pseudo OO wrapper around libmcrypt.
 * Copyright (C) 2011  Georg Hopp
 *
 * 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/>.
 */
#ifndef __CRYPT_H__
#define __CRYPT_H__

#include <sys/types.h>

#include "token/cclass.h"


struct CRYPT {
    const struct CCLASS * const class;
    const char * algorithm;
    const char * mode;
    MCRYPT mcrypt;
    size_t ivsize;
    size_t keysize;
    void * iv;
};

extern const struct CCLASS * const CRYPT;

void * crypt_encrypt(
        struct CRYPT * _this,
        const void * const data,
        const char * const password,
        size_t * length);

void * crypt_decrypt(
        struct CRYPT * _this,
        const void * const data,
        const char * const password,
        size_t * length);

void * crypt_createIv(
        struct CRYPT * _this);

void   crypt_setIv(
        struct CRYPT * _this,
        const void * const iv);

void  crypt_setIvsize(
        struct CRYPT * _this,
        const size_t size);

void crypt_setKeysize(
        struct CRYPT * _this,
        const size_t size);

#endif//__CRYPT_H__
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