Annotation of sys/crypto/rijndael.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: rijndael.h,v 1.12 2007/05/27 05:43:17 tedu Exp $ */
2:
3: /**
4: * rijndael-alg-fst.h
5: *
6: * @version 3.0 (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: #ifndef __RIJNDAEL_H
29: #define __RIJNDAEL_H
30:
31: #define AES_MAXKEYBITS (256)
32: #define AES_MAXKEYBYTES (AES_MAXKEYBITS/8)
33: /* for 256-bit keys, fewer for less */
34: #define AES_MAXROUNDS 14
35:
36: typedef unsigned char u8;
37: typedef unsigned short u16;
38: typedef unsigned int u32;
39:
40: /* The structure for key information */
41: typedef struct {
42: int enc_only; /* context contains only encrypt schedule */
43: int Nr; /* key-length-dependent number of rounds */
44: u32 ek[4*(AES_MAXROUNDS + 1)]; /* encrypt key schedule */
45: u32 dk[4*(AES_MAXROUNDS + 1)]; /* decrypt key schedule */
46: } rijndael_ctx;
47:
48: int rijndael_set_key(rijndael_ctx *, u_char *, int);
49: int rijndael_set_key_enc_only(rijndael_ctx *, u_char *, int);
50: void rijndael_decrypt(rijndael_ctx *, u_char *, u_char *);
51: void rijndael_encrypt(rijndael_ctx *, u_char *, u_char *);
52:
53: int rijndaelKeySetupEnc(unsigned int [], const unsigned char [], int);
54: int rijndaelKeySetupDec(unsigned int [], const unsigned char [], int);
55: void rijndaelEncrypt(const unsigned int [], int, const unsigned char [],
56: unsigned char []);
57:
58: #endif /* __RIJNDAEL_H */
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