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