FreeBSD/Linux Kernel Cross Reference
sys/sys/sha2.h

     /*      $NetBSD: sha2.h,v 1.2.20.1 2009/07/14 19:48:04 snj Exp $        */
     /*      $KAME: sha2.h,v 1.4 2003/07/20 00:28:38 itojun Exp $    */
     
     /*
      * sha2.h
      *
      * Version 1.0.0beta1
      *
      * Written by Aaron D. Gifford <me@aarongifford.com>
     *
     * Copyright 2000 Aaron D. Gifford.  All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. Neither the name of the copyright holder nor the names of contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``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 AUTHOR(S) OR CONTRIBUTOR(S) 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 __SHA2_H__
    #define __SHA2_H__
    
    #include <sys/types.h>
    #include <sys/cdefs.h>
    
    /*** SHA-224/256/384/512 Various Length Definitions ***********************/
    #define SHA224_BLOCK_LENGTH             64
    #define SHA224_DIGEST_LENGTH            28
    #define SHA224_DIGEST_STRING_LENGTH     (SHA224_DIGEST_LENGTH * 2 + 1)
    #define SHA256_BLOCK_LENGTH             64
    #define SHA256_DIGEST_LENGTH            32
    #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
    #define SHA384_BLOCK_LENGTH             128
    #define SHA384_DIGEST_LENGTH            48
    #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
    #define SHA512_BLOCK_LENGTH             128
    #define SHA512_DIGEST_LENGTH            64
    #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
    
    
    /*** SHA-256/384/512 Context Structures *******************************/
    typedef struct _SHA256_CTX {
            uint32_t        state[8];
            uint64_t        bitcount;
            uint8_t buffer[SHA256_BLOCK_LENGTH];
    } SHA256_CTX;
    
    typedef struct _SHA512_CTX {
            uint64_t        state[8];
            uint64_t        bitcount[2];
            uint8_t buffer[SHA512_BLOCK_LENGTH];
    } SHA512_CTX;
    
    typedef SHA256_CTX SHA224_CTX;
    typedef SHA512_CTX SHA384_CTX;
    
    
    /*** SHA-256/384/512 Function Prototypes ******************************/
    __BEGIN_DECLS
    int SHA224_Init(SHA224_CTX *);
    int SHA224_Update(SHA224_CTX*, const uint8_t*, size_t);
    int SHA224_Final(uint8_t[SHA224_DIGEST_LENGTH], SHA224_CTX*);
    #ifndef _KERNEL
    char *SHA224_End(SHA224_CTX *, char[SHA224_DIGEST_STRING_LENGTH]);
    char *SHA224_FileChunk(const char *, char *, off_t, off_t);
    char *SHA224_File(const char *, char *);
    char *SHA224_Data(const uint8_t *, size_t, char[SHA224_DIGEST_STRING_LENGTH]);
    #endif /* !_KERNEL */
    
    int SHA256_Init(SHA256_CTX *);
    int SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
    int SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
    #ifndef _KERNEL
    char *SHA256_End(SHA256_CTX *, char[SHA256_DIGEST_STRING_LENGTH]);
    char *SHA256_FileChunk(const char *, char *, off_t, off_t);
    char *SHA256_File(const char *, char *);
    char *SHA256_Data(const uint8_t *, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
    #endif /* !_KERNEL */
    
    int SHA384_Init(SHA384_CTX*);
   int SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
   int SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
   #ifndef _KERNEL
   char *SHA384_End(SHA384_CTX *, char[SHA384_DIGEST_STRING_LENGTH]);
   char *SHA384_FileChunk(const char *, char *, off_t, off_t);
   char *SHA384_File(const char *, char *);
   char *SHA384_Data(const uint8_t *, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
   #endif /* !_KERNEL */
   
   int SHA512_Init(SHA512_CTX*);
   int SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
   int SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
   #ifndef _KERNEL
   char *SHA512_End(SHA512_CTX *, char[SHA512_DIGEST_STRING_LENGTH]);
   char *SHA512_FileChunk(const char *, char *, off_t, off_t);
   char *SHA512_File(const char *, char *);
   char *SHA512_Data(const uint8_t *, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
   #endif /* !_KERNEL */
   __END_DECLS
   
   #endif /* __SHA2_H__ */

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