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camellia-internal.h
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Niels Möller authored
unmodified subkeys according to the spec. Moved clever combination of subkeys to camellia_set_encrypt_key. (camellia_setup256): Likewise. (camellia_set_encrypt_key): Moved subkey post-processing code here, and reduce code duplication between 128-bit keys and larger keys. * camellia.c: Deleted file, split into several new files... * camellia-table.c (_camellia_table): New file with the constant sbox tables. * camellia-set-encrypt-key.c: New file. (camellia_setup128): Generate unmodified subkeys according to the spec. Moved clever combination of subkeys to camellia_set_encrypt_key. (camellia_setup256): Likewise. * camellia-set-decrypt-key.c: New file. (camellia_invert_key): Key inversion function. (camellia_set_decrypt_key): New key setup function. * camellia-internal.h: New file. * camellia-crypt.c (camellia_crypt): New file, new wrapper function passing the sbox table to _camellia_crypt. * camellia-crypt-internal.c (_camellia_crypt): New file, with main encrypt/decrypt function. * Makefile.in (nettle_SOURCES): Updated list of camellia source files. (DISTFILES): Added camellia-internal.h. Rev: nettle/ChangeLog:1.96 Rev: nettle/Makefile.in:1.26 Rev: nettle/camellia-crypt-internal.c:1.1 Rev: nettle/camellia-crypt.c:1.1 Rev: nettle/camellia-internal.h:1.1 Rev: nettle/camellia-set-decrypt-key.c:1.1 Rev: nettle/camellia-set-encrypt-key.c:1.1 Rev: nettle/camellia-table.c:1.1 Rev: nettle/camellia.c:1.5(DEAD)
Niels Möller authoredunmodified subkeys according to the spec. Moved clever combination of subkeys to camellia_set_encrypt_key. (camellia_setup256): Likewise. (camellia_set_encrypt_key): Moved subkey post-processing code here, and reduce code duplication between 128-bit keys and larger keys. * camellia.c: Deleted file, split into several new files... * camellia-table.c (_camellia_table): New file with the constant sbox tables. * camellia-set-encrypt-key.c: New file. (camellia_setup128): Generate unmodified subkeys according to the spec. Moved clever combination of subkeys to camellia_set_encrypt_key. (camellia_setup256): Likewise. * camellia-set-decrypt-key.c: New file. (camellia_invert_key): Key inversion function. (camellia_set_decrypt_key): New key setup function. * camellia-internal.h: New file. * camellia-crypt.c (camellia_crypt): New file, new wrapper function passing the sbox table to _camellia_crypt. * camellia-crypt-internal.c (_camellia_crypt): New file, with main encrypt/decrypt function. * Makefile.in (nettle_SOURCES): Updated list of camellia source files. (DISTFILES): Added camellia-internal.h. Rev: nettle/ChangeLog:1.96 Rev: nettle/Makefile.in:1.26 Rev: nettle/camellia-crypt-internal.c:1.1 Rev: nettle/camellia-crypt.c:1.1 Rev: nettle/camellia-internal.h:1.1 Rev: nettle/camellia-set-decrypt-key.c:1.1 Rev: nettle/camellia-set-encrypt-key.c:1.1 Rev: nettle/camellia-table.c:1.1 Rev: nettle/camellia.c:1.5(DEAD)
camellia-internal.h 2.08 KiB
/* camellia-internal.h
*
* The camellia block cipher.
*/
/* Copyright (C) 2006,2007
* NTT (Nippon Telegraph and Telephone Corporation).
*
* Copyright (C) 2010 Niels Mller
*
* 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
*/
/* Rotation of 32-bit values. */
#define ROL32(bits, x) (((x) << (bits)) | ((x) >> (32 - (bits))))
/* Destructive rotation of 128 bit values. */
#define ROL128(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 */