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Diffstat (limited to 'rijndael.h')
| -rw-r--r-- | rijndael.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/rijndael.h b/rijndael.h new file mode 100644 index 0000000..e04324b --- /dev/null +++ b/rijndael.h @@ -0,0 +1,55 @@ +/* $OpenBSD: rijndael.h,v 1.15 2021/09/28 11:14:50 dtucker Exp $ */ + +/** + * rijndael-alg-fst.h + * + * @version 3.0 (December 2000) + * + * Optimised ANSI C code for the Rijndael cipher (now AES) + * + * @author Vincent Rijmen <vincent.rijmen@esat.kuleuven.ac.be> + * @author Antoon Bosselaers <antoon.bosselaers@esat.kuleuven.ac.be> + * @author Paulo Barreto <paulo.barreto@terra.com.br> + * + * This code is hereby placed in the public domain. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ''AS IS'' AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _PRIVATE_RIJNDAEL_H +#define _PRIVATE_RIJNDAEL_H + +#define AES_MAXKEYBITS (256) +#define AES_MAXKEYBYTES (AES_MAXKEYBITS/8) +/* for 256-bit keys, fewer for less */ +#define AES_MAXROUNDS 14 + +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned int u32; + +int rijndaelKeySetupEnc(unsigned int [], const unsigned char [], int); +void rijndaelEncrypt(const unsigned int [], int, const u8 [16], u8 [16]); + +/* The structure for key information */ +typedef struct { + int decrypt; + int Nr; /* key-length-dependent number of rounds */ + u32 ek[4*(AES_MAXROUNDS + 1)]; /* encrypt key schedule */ + u32 dk[4*(AES_MAXROUNDS + 1)]; /* decrypt key schedule */ +} rijndael_ctx; + +void rijndael_set_key(rijndael_ctx *, u_char *, int, int); +void rijndael_decrypt(rijndael_ctx *, u_char *, u_char *); +void rijndael_encrypt(rijndael_ctx *, u_char *, u_char *); + +#endif /* _PRIVATE_RIJNDAEL_H */ |