source: tags/4.1.0/include/rijndael-api-fst.h

Last change on this file was 481, checked in by katerina, 5 years ago

Enhancements and fixes for tickets #374, #375, #376, #377, #378, and #379.

File size: 4.9 KB
Line 
1/*      $NetBSD: rijndael-api-fst.h,v 1.8 2007/01/21 23:00:08 cbiere Exp $      */
2
3/**
4 * rijndael-api-fst.h
5 *
6 * @version 2.9 (December 2000)
7 *
8 * Optimised ANSI C code for the Rijndael cipher (now AES)
9 *
10 * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be>
11 * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be>
12 * @author Paulo Barreto <paulo.barreto@terra.com.br>
13 *
14 * This code is hereby placed in the public domain.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS
17 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Acknowledgements:
29 *
30 * We are deeply indebted to the following people for their bug reports,
31 * fixes, and improvement suggestions to this implementation. Though we
32 * tried to list all contributions, we apologise in advance for any
33 * missing reference.
34 *
35 * Andrew Bales <Andrew.Bales@Honeywell.com>
36 * Markus Friedl <markus.friedl@informatik.uni-erlangen.de>
37 * John Skodon <skodonj@webquill.com>
38 */
39
40#ifndef __RIJNDAEL_API_FST_H
41#define __RIJNDAEL_API_FST_H
42
43/* Blocksize: 16 * 8 = 128; 128 * 1 = 128 */
44#define     B_SIZ    16
45#define     BNUM      1
46
47
48#if defined(UINT32)
49typedef unsigned char u8;
50typedef UINT32 u32;
51#else
52
53typedef unsigned char u8;
54#if defined(HAVE_INT_32)
55typedef unsigned int u32;
56#elif defined(HAVE_LONG_32)
57typedef unsigned long u32;
58#elif defined(HAVE_SHORT_32)
59typedef unsigned short u32;
60#else
61#error "No 32 bit integer type found"
62#endif
63
64#endif
65
66#include "rijndael-alg-fst.h"
67
68/*  Generic Defines  */
69#define     DIR_ENCRYPT           0 /*  Are we encrpyting?  */
70#define     DIR_DECRYPT           1 /*  Are we decrpyting?  */
71#define     MODE_ECB              1 /*  Are we ciphering in ECB mode?   */
72#define     MODE_CBC              2 /*  Are we ciphering in CBC mode?   */
73#define     MODE_CFB1             3 /*  Are we ciphering in 1-bit CFB mode? */
74#ifndef     TRUE
75#define     TRUE                  1
76#endif
77#ifndef     FALSE
78#define     FALSE                 0
79#endif
80#define     BITSPERBLOCK        128 /* Default number of bits in a cipher block */
81
82/*  Error Codes  */
83#define     BAD_KEY_DIR          -1 /*  Key direction is invalid, e.g., unknown value */
84#define     BAD_KEY_MAT          -2 /*  Key material not of correct length */
85#define     BAD_KEY_INSTANCE     -3 /*  Key passed is not valid */
86#define     BAD_CIPHER_MODE      -4 /*  Params struct passed to cipherInit invalid */
87#define     BAD_CIPHER_STATE     -5 /*  Cipher in wrong state (e.g., not initialized) */
88#define     BAD_BLOCK_LENGTH     -6
89#define     BAD_CIPHER_INSTANCE  -7
90#define     BAD_DATA             -8 /*  Data contents are invalid, e.g., invalid padding */
91#define     BAD_OTHER            -9 /*  Unknown error */
92
93/*  Algorithm-specific Defines  */
94#define     RIJNDAEL_MAX_KEY_SIZE         64 /* # of ASCII char's needed to represent a key */
95#define     RIJNDAEL_MAX_IV_SIZE          16 /* # bytes needed to represent an IV  */
96
97#ifdef SH_ENCRYPT
98
99/*  Typedefs  */
100
101typedef unsigned char   BYTE;
102
103/*  The structure for key information */
104typedef struct {
105  u32   rk[4*(RIJNDAEL_MAXNR + 1)];        /* key schedule */
106  u32   ek[4*(RIJNDAEL_MAXNR + 1)];        /* CFB1 key schedule (encryption only) */
107  BYTE  direction;                /* Key used for encrypting or decrypting? */
108  int   keyLen;                   /* Length of the key  */
109  char  keyMaterial[RIJNDAEL_MAX_KEY_SIZE+1];  /* Raw key data in ASCII, e.g., user input or KAT values */
110  int   Nr;                       /* key-length-dependent number of rounds */
111} keyInstance;
112
113/*  The structure for cipher information */
114typedef struct {                    /* changed order of the components */
115    u32  IV[RIJNDAEL_MAX_IV_SIZE / sizeof(u32)];
116                        /* A possible Initialization Vector for ciphering */
117    BYTE  mode;                     /* MODE_ECB, MODE_CBC, or MODE_CFB1 */
118} cipherInstance;
119
120/*  Function prototypes  */
121
122int rijndael_makeKey(keyInstance *, BYTE, int, const char *);
123
124int rijndael_cipherInit(cipherInstance *, BYTE, const char *);
125
126int rijndael_blockEncrypt(cipherInstance *, keyInstance *, const BYTE *, int, BYTE *);
127
128int rijndael_padEncrypt(cipherInstance *, keyInstance *, const BYTE *, int, BYTE *);
129
130int rijndael_blockDecrypt(cipherInstance *, keyInstance *, const BYTE *, int, BYTE *);
131
132int rijndael_padDecrypt(cipherInstance *, keyInstance *, const BYTE *, int, BYTE *);
133
134/* SH_ENCRYPT */
135#endif
136#endif /* __RIJNDAEL_API_FST_H */
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