mirror of https://github.com/macssh/macssh.git
73 lines
1.8 KiB
C
Executable File
73 lines
1.8 KiB
C
Executable File
/* idea.c
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*
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* $Id$ */
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/* lsh, an implementation of the ssh protocol
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*
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* Copyright (C) 1998 Balázs Scheidler, Niels Möller
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "crypto.h"
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#include "werror.h"
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#include "xalloc.h"
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#ifdef WITH_IDEA
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#include "idea.h"
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#include <assert.h>
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#include "idea.c.x"
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/* GABA:
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(class
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(name idea_instance)
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(super crypto_instance)
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(vars
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(ctx array UINT16 IDEA_KEYLEN)))
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*/
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static void do_idea_crypt(struct crypto_instance *s,
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UINT32 length, const UINT8 *src, UINT8 *dst)
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{
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CAST(idea_instance, self, s);
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FOR_BLOCKS(length, src, dst, IDEA_BLOCKSIZE)
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idea_crypt(self->ctx, dst, src);
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}
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static struct crypto_instance *
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make_idea_instance(struct crypto_algorithm *algorithm UNUSED, int mode,
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const UINT8 *key, const UINT8 *iv UNUSED)
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{
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NEW(idea_instance, self);
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idea_expand(self->ctx, key);
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if (mode == CRYPTO_DECRYPT)
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idea_invert(self->ctx, self->ctx);
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self->super.block_size = IDEA_BLOCKSIZE;
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self->super.crypt = do_idea_crypt;
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return &self->super;
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}
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struct crypto_algorithm idea_algorithm =
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{ STATIC_HEADER, IDEA_BLOCKSIZE, IDEA_KEYSIZE, 0, make_idea_instance };
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#endif /* WITH_IDEA */
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