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/*
* ---------------------------------------------------------------------------
* Copyright (c) 1998-2007, Brian Gladman, Worcester, UK. All rights reserved.
*
* LICENSE TERMS
*
* The free distribution and use of this software is allowed (with or without
* changes) provided that:
*
* 1. source code distributions include the above copyright notice, this
* list of conditions and the following disclaimer;
*
* 2. binary distributions include the above copyright notice, this list
* of conditions and the following disclaimer in their documentation;
*
* 3. the name of the copyright holder is not used to endorse products
* built using this software without specific written permission.
*
* DISCLAIMER
*
* This software is provided 'as is' with no explicit or implied warranties
* in respect of its properties, including, but not limited to, correctness
* and/or fitness for purpose.
* ---------------------------------------------------------------------------
* Issue Date: 20/12/2007
*
* This file contains the code for declaring the tables needed to implement
* AES. The file aesopt.h is assumed to be included before this header file.
* If there are no global variables, the definitions here can be used to put
* the AES tables in a structure so that a pointer can then be added to the
* AES context to pass them to the AES routines that need them. If this
* facility is used, the calling program has to ensure that this pointer is
* managed appropriately. In particular, the value of the t_dec(in, it) item
* in the table structure must be set to zero in order to ensure that the
* tables are initialised. In practice the three code sequences in aeskey.c
* that control the calls to aes_init() and the aes_init() routine itself will
* have to be changed for a specific implementation. If global variables are
* available it will generally be preferable to use them with the precomputed
* FIXED_TABLES option that uses static global tables.
*
* The following defines can be used to control the way the tables
* are defined, initialised and used in embedded environments that
* require special features for these purposes
*
* the 't_dec' construction is used to declare fixed table arrays
* the 't_set' construction is used to set fixed table values
* the 't_use' construction is used to access fixed table values
*
* 256 byte tables:
*
* t_xxx(s, box) => forward S box
* t_xxx(i, box) => inverse S box
*
* 256 32-bit word OR 4 x 256 32-bit word tables:
*
* t_xxx(f, n) => forward normal round
* t_xxx(f, l) => forward last round
* t_xxx(i, n) => inverse normal round
* t_xxx(i, l) => inverse last round
* t_xxx(l, s) => key schedule table
* t_xxx(i, m) => key schedule table
*
* Other variables and tables:
*
* t_xxx(r, c) => the rcon table
*/
/*
* OpenSolaris OS modifications
*
* 1. Added __cplusplus and _AESTAB_H header guards
* 2. Added header file sys/types.h
* 3. Remove code defined for _MSC_VER
* 4. Changed all variables to "static const"
* 5. Changed uint_8t and uint_32t to uint8_t and uint32_t
* 6. Cstyled and hdrchk code
*/
#ifndef _AESTAB_H
#define _AESTAB_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#define t_dec(m, n) t_##m##n
#define t_set(m, n) t_##m##n
#define t_use(m, n) t_##m##n
#if defined(DO_TABLES) && defined(FIXED_TABLES)
#define d_1(t, n, b, e) static const t n[256] = b(e)
#define d_4(t, n, b, e, f, g, h) static const t n[4][256] = \
{b(e), b(f), b(g), b(h)}
static const uint32_t t_dec(r, c)[RC_LENGTH] = rc_data(w0);
#else
#define d_1(t, n, b, e) static const t n[256]
#define d_4(t, n, b, e, f, g, h) static const t n[4][256]
static const uint32_t t_dec(r, c)[RC_LENGTH];
#endif
#if defined(SBX_SET)
d_1(uint8_t, t_dec(s, box), sb_data, h0);
#endif
#if defined(ISB_SET)
d_1(uint8_t, t_dec(i, box), isb_data, h0);
#endif
#if defined(FT1_SET)
d_1(uint32_t, t_dec(f, n), sb_data, u0);
#endif
#if defined(FT4_SET)
d_4(uint32_t, t_dec(f, n), sb_data, u0, u1, u2, u3);
#endif
#if defined(FL1_SET)
d_1(uint32_t, t_dec(f, l), sb_data, w0);
#endif
#if defined(FL4_SET)
d_4(uint32_t, t_dec(f, l), sb_data, w0, w1, w2, w3);
#endif
#if defined(IT1_SET)
d_1(uint32_t, t_dec(i, n), isb_data, v0);
#endif
#if defined(IT4_SET)
d_4(uint32_t, t_dec(i, n), isb_data, v0, v1, v2, v3);
#endif
#if defined(IL1_SET)
d_1(uint32_t, t_dec(i, l), isb_data, w0);
#endif
#if defined(IL4_SET)
d_4(uint32_t, t_dec(i, l), isb_data, w0, w1, w2, w3);
#endif
#if defined(LS1_SET)
#if defined(FL1_SET)
#undef LS1_SET
#else
d_1(uint32_t, t_dec(l, s), sb_data, w0);
#endif
#endif
#if defined(LS4_SET)
#if defined(FL4_SET)
#undef LS4_SET
#else
d_4(uint32_t, t_dec(l, s), sb_data, w0, w1, w2, w3);
#endif
#endif
#if defined(IM1_SET)
d_1(uint32_t, t_dec(i, m), mm_data, v0);
#endif
#if defined(IM4_SET)
d_4(uint32_t, t_dec(i, m), mm_data, v0, v1, v2, v3);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _AESTAB_H */
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