OpenZWave Library
1.2
cpp
src
aes
aestab.h
Go to the documentation of this file.
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/*
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---------------------------------------------------------------------------
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Copyright (c) 1998-2013, Brian Gladman, Worcester, UK. All rights reserved.
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The redistribution and use of this software (with or without changes)
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is allowed without the payment of fees or royalties provided that:
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source code distributions include the above copyright notice, this
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list of conditions and the following disclaimer;
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binary distributions include the above copyright notice, this list
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of conditions and the following disclaimer in their documentation.
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This software is provided 'as is' with no explicit or implied warranties
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in respect of its operation, including, but not limited to, correctness
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and fitness for purpose.
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---------------------------------------------------------------------------
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Issue Date: 20/12/2007
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This file contains the code for declaring the tables needed to implement
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AES. The file aesopt.h is assumed to be included before this header file.
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If there are no global variables, the definitions here can be used to put
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the AES tables in a structure so that a pointer can then be added to the
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AES context to pass them to the AES routines that need them. If this
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facility is used, the calling program has to ensure that this pointer is
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managed appropriately. In particular, the value of the t_dec(in,it) item
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in the table structure must be set to zero in order to ensure that the
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tables are initialised. In practice the three code sequences in aeskey.c
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that control the calls to aes_init() and the aes_init() routine itself will
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have to be changed for a specific implementation. If global variables are
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available it will generally be preferable to use them with the precomputed
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FIXED_TABLES option that uses static global tables.
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The following defines can be used to control the way the tables
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are defined, initialised and used in embedded environments that
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require special features for these purposes
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the 't_dec' construction is used to declare fixed table arrays
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the 't_set' construction is used to set fixed table values
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the 't_use' construction is used to access fixed table values
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256 byte tables:
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t_xxx(s,box) => forward S box
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t_xxx(i,box) => inverse S box
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256 32-bit word OR 4 x 256 32-bit word tables:
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t_xxx(f,n) => forward normal round
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t_xxx(f,l) => forward last round
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t_xxx(i,n) => inverse normal round
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t_xxx(i,l) => inverse last round
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t_xxx(l,s) => key schedule table
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t_xxx(i,m) => key schedule table
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Other variables and tables:
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t_xxx(r,c) => the rcon table
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*/
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#if !defined( _AESTAB_H )
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#define _AESTAB_H
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#if defined(__cplusplus)
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extern
"C"
{
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#endif
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#define t_dec(m,n) t_##m##n
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#define t_set(m,n) t_##m##n
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#define t_use(m,n) t_##m##n
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#if defined(FIXED_TABLES)
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# if !defined( __GNUC__ ) && (defined( __MSDOS__ ) || defined( __WIN16__ ))
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/* make tables far data to avoid using too much DGROUP space (PG) */
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# define CONST const far
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# else
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# define CONST const
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# endif
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#else
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# define CONST
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#endif
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#if defined(DO_TABLES)
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# define EXTERN
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#else
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# define EXTERN extern
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#endif
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#if defined(_MSC_VER) && defined(TABLE_ALIGN)
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#define ALIGN __declspec(align(TABLE_ALIGN))
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#else
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#define ALIGN
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#endif
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#if defined( __WATCOMC__ ) && ( __WATCOMC__ >= 1100 )
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# define XP_DIR __cdecl
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#else
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# define XP_DIR
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#endif
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#if defined(DO_TABLES) && defined(FIXED_TABLES)
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#define d_1(t,n,b,e) EXTERN ALIGN CONST XP_DIR t n[256] = b(e)
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#define d_4(t,n,b,e,f,g,h) EXTERN ALIGN CONST XP_DIR t n[4][256] = { b(e), b(f), b(g), b(h) }
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EXTERN
ALIGN
CONST
uint32_t
t_dec
(r,c)[
RC_LENGTH
] =
rc_data
(
w0
);
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#else
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#define d_1(t,n,b,e) EXTERN ALIGN CONST XP_DIR t n[256]
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#define d_4(t,n,b,e,f,g,h) EXTERN ALIGN CONST XP_DIR t n[4][256]
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EXTERN
ALIGN
CONST
uint32_t
t_dec
(r,c)[
RC_LENGTH
];
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#endif
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#if defined( SBX_SET )
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d_1
(uint8_t,
t_dec
(
s
,box),
sb_data
,
h0
);
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#endif
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#if defined( ISB_SET )
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d_1
(uint8_t,
t_dec
(i,box),
isb_data
,
h0
);
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#endif
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#if defined( FT1_SET )
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d_1
(uint32_t,
t_dec
(f,n),
sb_data
,
u0
);
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#endif
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#if defined( FT4_SET )
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d_4
(uint32_t,
t_dec
(f,n),
sb_data
,
u0
,
u1
,
u2
,
u3
);
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#endif
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#if defined( FL1_SET )
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d_1
(uint32_t,
t_dec
(f,l),
sb_data
,
w0
);
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#endif
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#if defined( FL4_SET )
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d_4
(uint32_t,
t_dec
(f,l),
sb_data
,
w0
,
w1
,
w2
,
w3
);
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#endif
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#if defined( IT1_SET )
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d_1
(uint32_t,
t_dec
(i,n),
isb_data
,
v0
);
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#endif
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#if defined( IT4_SET )
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d_4
(uint32_t,
t_dec
(i,n),
isb_data
,
v0
,
v1
,
v2
,
v3
);
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#endif
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#if defined( IL1_SET )
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d_1
(uint32_t,
t_dec
(i,l),
isb_data
,
w0
);
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#endif
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#if defined( IL4_SET )
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d_4
(uint32_t,
t_dec
(i,l),
isb_data
,
w0
,
w1
,
w2
,
w3
);
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#endif
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#if defined( LS1_SET )
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#if defined( FL1_SET )
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#undef LS1_SET
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#else
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d_1
(uint32_t,
t_dec
(l,
s
),
sb_data
,
w0
);
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#endif
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#endif
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#if defined( LS4_SET )
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#if defined( FL4_SET )
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#undef LS4_SET
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#else
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d_4
(uint32_t,
t_dec
(l,
s
),
sb_data
,
w0
,
w1
,
w2
,
w3
);
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#endif
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#endif
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#if defined( IM1_SET )
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d_1
(uint32_t,
t_dec
(i,m),
mm_data
,
v0
);
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#endif
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#if defined( IM4_SET )
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d_4
(uint32_t,
t_dec
(i,m),
mm_data
,
v0
,
v1
,
v2
,
v3
);
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#endif
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#if defined(__cplusplus)
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}
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#endif
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#endif
isb_data
#define isb_data(w)
Definition:
aestab.c:62
ALIGN
#define ALIGN
Definition:
aestab.h:92
v0
#define v0(p)
Definition:
aestab.c:146
CONST
#define CONST
Definition:
aestab.h:80
h0
#define h0(x)
Definition:
aestab.c:134
u0
#define u0(p)
Definition:
aestab.c:141
v2
#define v2(p)
Definition:
aestab.c:148
u3
#define u3(p)
Definition:
aestab.c:144
d_4
#define d_4(t, n, b, e, f, g, h)
Definition:
aestab.h:107
rc_data
#define rc_data(w)
Definition:
aestab.c:130
u1
#define u1(p)
Definition:
aestab.c:142
RC_LENGTH
#define RC_LENGTH
Definition:
aesopt.h:520
v3
#define v3(p)
Definition:
aestab.c:149
w3
#define w3(p)
Definition:
aestab.c:139
sb_data
#define sb_data(w)
Definition:
aestab.c:28
EXTERN
#define EXTERN
Definition:
aestab.h:86
t_dec
#define t_dec(m, n)
Definition:
aestab.h:68
s
#define s(x, c)
Definition:
aesopt.h:483
w2
#define w2(p)
Definition:
aestab.c:138
v1
#define v1(p)
Definition:
aestab.c:147
u2
#define u2(p)
Definition:
aestab.c:143
mm_data
#define mm_data(w)
Definition:
aestab.c:96
d_1
#define d_1(t, n, b, e)
Definition:
aestab.h:106
w0
#define w0(p)
Definition:
aestab.c:136
w1
#define w1(p)
Definition:
aestab.c:137
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