Annotation of sys/crypto/rijndael.h, Revision 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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