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Diffstat (limited to 'scripts/conf-w32brg/aestab.h')
| -rw-r--r-- | scripts/conf-w32brg/aestab.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/scripts/conf-w32brg/aestab.h b/scripts/conf-w32brg/aestab.h new file mode 100644 index 000000000..75b1533c4 --- /dev/null +++ b/scripts/conf-w32brg/aestab.h @@ -0,0 +1,175 @@ +/* + --------------------------------------------------------------------------- + Copyright (c) 2003, Dr Brian Gladman, Worcester, UK. All rights reserved. + + LICENSE TERMS + + The free distribution and use of this software in both source and binary + form is allowed (with or without changes) provided that: + + 1. distributions of this source code include the above copyright + notice, this list of conditions and the following disclaimer; + + 2. distributions in binary form include the above copyright + notice, this list of conditions and the following disclaimer + in the documentation and/or other associated materials; + + 3. the copyright holder's name is not used to endorse products + built using this software without specific written permission. + + ALTERNATIVELY, provided that this notice is retained in full, this product + may be distributed under the terms of the GNU General Public License (GPL), + in which case the provisions of the GPL apply INSTEAD OF those given above. + + 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 30/06/2004 + + 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 gen_tabs() and the gen_tabs() 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 +*/ + +#if !defined( _AESTAB_H ) +#define _AESTAB_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(FIXED_TABLES) +#define Const const +#else +#define Const +#endif + +#if defined(DO_TABLES) +#define Extern +#else +#define Extern extern +#endif + +#if defined(_MSC_VER) && defined(TABLE_ALIGN) +#define Align __declspec(align(TABLE_ALIGN)) +#else +#define Align +#endif + +#if defined(__cplusplus) +extern "C" +{ +#endif + +#if defined(DO_TABLES) && defined(FIXED_TABLES) +#define d_1(t,n,b,e) Align Const t n[256] = b(e) +#define d_4(t,n,b,e,f,g,h) Align Const t n[4][256] = { b(e), b(f), b(g), b(h) } +Extern Align Const aes_32t t_dec(r,c)[RC_LENGTH] = rc_data(w0); +#else +#define d_1(t,n,b,e) Extern Align Const t n[256] +#define d_4(t,n,b,e,f,g,h) Extern Align Const t n[4][256] +Extern Align Const aes_32t t_dec(r,c)[RC_LENGTH]; +#endif + +#if defined( SBX_SET ) + d_1(aes_08t, t_dec(s,box), sb_data, h0); +#endif +#if defined( ISB_SET ) + d_1(aes_08t, t_dec(i,box), isb_data, h0); +#endif + +#if defined( FT1_SET ) + d_1(aes_32t, t_dec(f,n), sb_data, u0); +#endif +#if defined( FT4_SET ) + d_4(aes_32t, t_dec(f,n), sb_data, u0, u1, u2, u3); +#endif + +#if defined( FL1_SET ) + d_1(aes_32t, t_dec(f,l), sb_data, w0); +#endif +#if defined( FL4_SET ) + d_4(aes_32t, t_dec(f,l), sb_data, w0, w1, w2, w3); +#endif + +#if defined( IT1_SET ) + d_1(aes_32t, t_dec(i,n), isb_data, v0); +#endif +#if defined( IT4_SET ) + d_4(aes_32t, t_dec(i,n), isb_data, v0, v1, v2, v3); +#endif + +#if defined( IL1_SET ) + d_1(aes_32t, t_dec(i,l), isb_data, w0); +#endif +#if defined( IL4_SET ) + d_4(aes_32t, 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(aes_32t, t_dec(l,s), sb_data, w0); +#endif +#endif + +#if defined( LS4_SET ) +#if defined( FL4_SET ) +#undef LS4_SET +#else + d_4(aes_32t, t_dec(l,s), sb_data, w0, w1, w2, w3); +#endif +#endif + +#if defined( IM1_SET ) + d_1(aes_32t, t_dec(i,m), mm_data, v0); +#endif +#if defined( IM4_SET ) + d_4(aes_32t, t_dec(i,m), mm_data, v0, v1, v2, v3); +#endif + +#if defined(__cplusplus) +} +#endif + +#endif |