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 <stdint.h> 31 32 #if __BYTE_ORDER == __LITTLE_ENDIAN && !defined(LITTLE_ENDIAN) 33 #define LITTLE_ENDIAN 34 #endif 35 36 /* Make sure you define these types for your architecture: */ 37 typedef uint32_t sha1_quadbyte; /* 4 byte type */ 38 typedef char sha1_byte; /* single byte type */ 39 40 /* 41 * Be sure to get the above definitions right. For instance, on my 42 * x86 based FreeBSD box, I define LITTLE_ENDIAN and use the type 43 * "unsigned long" for the quadbyte. On FreeBSD on the Alpha, however, 44 * while I still use LITTLE_ENDIAN, I must define the quadbyte type 45 * as "unsigned int" instead. 46 */ 47 48 #define SHA1_BLOCK_LENGTH 64 49 #define SHA1_DIGEST_LENGTH 20 50 51 /* The SHA1 structure: */ 52 typedef struct _SHA_CTX { 53 sha1_quadbyte state[5]; 54 sha1_quadbyte count[2]; 55 sha1_byte buffer[SHA1_BLOCK_LENGTH]; 56 } SHA_CTX; 57 58 void SHA1_Init(SHA_CTX *context); 59 void SHA1_Update(SHA_CTX *context, const sha1_byte *data, unsigned int len); 60 void SHA1_Final(sha1_byte digest[SHA1_DIGEST_LENGTH], SHA_CTX* context); 61 62 #endif 63