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      1 /*
      2  * Copyright 2011 The Android Open Source Project
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are met:
      6  *     * Redistributions of source code must retain the above copyright
      7  *       notice, this list of conditions and the following disclaimer.
      8  *     * Redistributions in binary form must reproduce the above copyright
      9  *       notice, this list of conditions and the following disclaimer in the
     10  *       documentation and/or other materials provided with the distribution.
     11  *     * Neither the name of Google Inc. nor the names of its contributors may
     12  *       be used to endorse or promote products derived from this software
     13  *       without specific prior written permission.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     17  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     18  * EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     19  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     21  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     22  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     23  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     24  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_
     28 #define SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_
     29 
     30 #include <stdint.h>
     31 #include "hash-internal.h"
     32 
     33 #ifdef __cplusplus
     34 extern "C" {
     35 #endif // __cplusplus
     36 
     37 typedef HASH_CTX SHA256_CTX;
     38 
     39 void SHA256_init(SHA256_CTX* ctx);
     40 void SHA256_update(SHA256_CTX* ctx, const void* data, int len);
     41 const uint8_t* SHA256_final(SHA256_CTX* ctx);
     42 
     43 // Convenience method. Returns digest address.
     44 const uint8_t* SHA256_hash(const void* data, int len, uint8_t* digest);
     45 
     46 #define SHA256_DIGEST_SIZE 32
     47 
     48 #ifdef __cplusplus
     49 }
     50 #endif // __cplusplus
     51 
     52 #endif  // SYSTEM_CORE_INCLUDE_MINCRYPT_SHA256_H_
     53