common/hash_sha1.h

   1 /*
   2  * sha.h
   3  *
   4  * Originally taken from the public domain SHA1 implementation
   5  * written by by Steve Reid <steve@edmweb.com>
   6  *
   7  * Modified by Aaron D. Gifford <agifford@infowest.com>
   8  *
   9  * NO COPYRIGHT - THIS IS 100% IN THE PUBLIC DOMAIN
  10  *
  11  * The original unmodified version is available at:
  12  *    ftp://ftp.funet.fi/pub/crypt/hash/sha/sha1.c
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #ifndef __SHA1_H__
  28 #define __SHA1_H__
  29
  30 #include "common.h"
  31
  32 /* Define this if your machine is LITTLE_ENDIAN, otherwise #undef it: */
  33 /* Is defined in endian.h */
  34 /*
  35 #define LITTLE_ENDIAN
  36  */
  37
  38 /* Make sure you define these types for your architecture: */
  39 typedef uint32_t        sha1_quadbyte;  /* 4 byte type */
  40 typedef uint8_t         sha1_byte;      /* single byte type */
  41
  42 /*
  43  * Be sure to get the above definitions right.  For instance, on my
  44  * x86 based FreeBSD box, I define LITTLE_ENDIAN and use the type
  45  * "unsigned long" for the quadbyte.  On FreeBSD on the Alpha, however,
  46  * while I still use LITTLE_ENDIAN, I must define the quadbyte type
  47  * as "unsigned int" instead.
  48  */
  49
  50 #define SHA1_BLOCK_LENGTH       64
  51 #define SHA1_DIGEST_LENGTH      20
  52
  53 /* The SHA1 structure: */
  54 typedef struct _SHA_CTX {
  55         sha1_quadbyte   state[5];
  56         sha1_quadbyte   count[2];
  57         sha1_byte       buffer[SHA1_BLOCK_LENGTH];
  58 } SHA_CTX;
  59
  60 #ifndef NOPROTO
  61 void SHA1_Init(SHA_CTX *context);
  62 void SHA1_Update(SHA_CTX *context, const sha1_byte *data, unsigned int len);
  63 void SHA1_Final(sha1_byte digest[SHA1_DIGEST_LENGTH], SHA_CTX* context);
  64 #else
  65 void SHA1_Init();
  66 void SHA1_Update();
  67 void SHA1_Final();
  68 #endif
  69
  70 #endif
  71