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des-compat.h

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  • Forked from Nettle / nettle
    Source project has a limited visibility.
    camellia-internal.h 1.99 KiB
    /* camellia-internal.h
     *
     * The camellia block cipher.
     */
    
    /* Copyright (C) 2006,2007
     * NTT (Nippon Telegraph and Telephone Corporation).
     *
     * Copyright (C) 2010 Niels Möller
     *
     * This library 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.
     *
     * This library 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 this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     */
    
    /*
     * Algorithm Specification 
     *  http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
     */
    
    /* Based on camellia.c ver 1.2.0, see
       http://info.isl.ntt.co.jp/crypt/eng/camellia/dl/camellia-LGPL-1.2.0.tar.gz.
     */
    
    #ifndef NETTLE_CAMELLIA_INTERNAL_H_INCLUDED
    #define NETTLE_CAMELLIA_INTERNAL_H_INCLUDED
    
    #include "camellia.h"
    
    /* Name mangling */
    #define _camellia_crypt _nettle_camellia_crypt
    #define _camellia_table _nettle_camellia_table
    
    /*
     *  macros
     */
    
    /* Destructive rotation of 128 bit values. */
    #define ROTL128(bits, xl, xr) do {		\
        uint64_t __rol128_t = (xl);			     \
        (xl) = ((xl) << (bits)) | ((xr) >> (64 - (bits)));	   \
        (xr) = ((xr) << (bits)) | (__rol128_t >> (64 - (bits)));	\
      } while (0)
    
    struct camellia_table
    {
      uint32_t sp1110[256];
      uint32_t sp0222[256];
      uint32_t sp3033[256];
      uint32_t sp4404[256];
    };
    
    void
    _camellia_crypt(const struct camellia_ctx *ctx,
    		const struct camellia_table *T,
    		unsigned length, uint8_t *dst,
    		const uint8_t *src);
    
    extern const struct camellia_table _camellia_table;
    
    #endif /* NETTLE_CAMELLIA_INTERNAL_H_INCLUDED */