misc/winutils/include/libavutil/xtea.h
author dag10
Mon, 14 Jan 2013 11:19:59 +0100
changeset 8377 869f80966a77
parent 7813 7ac83d79b897
permissions -rw-r--r--
GCI2012: Improve Game Configuration Widget - Refactored mapmodel+datamanager to have two separate map models for static and mission maps, and then three static MapInfos in MapModel for the three special maps (random, maze, drawn). - Created theme selector dialog. - Created seed view/edit dialog. - Enlarged start icon on pagemultiplayer and pagenetgame, and added Start.png. - Moved "Settings" button on pagemultiplayer and pagenetgame from middle of page to page footer. - Added "load drawing" button to mapcontainer widget. - Map preview is no longer the randomize button; The randomize functionality is now in a button of its own. - Map preview no longer grays out (isn't disabled) when in slave mode. - Seed is now viewable and copyable when in slave mode -- but not editable. - You should now use the property master (isMaster() and setMaster()) on gamecfgwidget and mapcontainer instead of the enabled property. This is because some widgets (e.g. "view/edit seed" button and map preview) shouldn't be disabled, when all other widgets should be. - Added mission map descriptions w/ locale support in INI format in mapname/desc.txt if applicable. Use '|' for line break.

/*
 * A 32-bit implementation of the XTEA algorithm
 *
 * This file is part of Libav.
 *
 * Libav is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * Libav 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Libav; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVUTIL_XTEA_H
#define AVUTIL_XTEA_H

#include <stdint.h>

/**
 * @defgroup lavu_xtea XTEA
 * @ingroup lavu_crypto
 * @{
 */

typedef struct AVXTEA {
    uint32_t key[16];
} AVXTEA;

/**
 * Initialize an AVXTEA context.
 *
 * @param ctx an AVXTEA context
 * @param key a key of 16 bytes used for encryption/decryption
 */
void av_xtea_init(struct AVXTEA *ctx, const uint8_t key[16]);

/**
 * Encrypt or decrypt a buffer using a previously initialized context.
 *
 * @param ctx an AVXTEA context
 * @param dst destination array, can be equal to src
 * @param src source array, can be equal to dst
 * @param count number of 8 byte blocks
 * @param iv initialization vector for CBC mode, if NULL then ECB will be used
 * @param decrypt 0 for encryption, 1 for decryption
 */
void av_xtea_crypt(struct AVXTEA *ctx, uint8_t *dst, const uint8_t *src,
                   int count, uint8_t *iv, int decrypt);

/**
 * @}
 */

#endif /* AVUTIL_XTEA_H */