1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16/*
17 * FILE:        sha2.h
18 * AUTHOR:      Aaron D. Gifford <me@aarongifford.com>
19 *
20 * A licence was granted to the ASF by Aaron on 4 November 2003.
21 */
22
23#ifndef __SHA2_H__
24#define __SHA2_H__
25
26#ifdef __cplusplus
27extern "C" {
28#endif
29
30#include "apr.h"
31
32/*** SHA-256 Various Length Definitions ***********************/
33#define SHA256_BLOCK_LENGTH             64
34#define SHA256_DIGEST_LENGTH            32
35#define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
36
37
38/*** SHA-256/384/512 Context Structures *******************************/
39typedef struct _SHA256_CTX {
40        apr_uint32_t    state[8];
41        apr_uint64_t    bitcount;
42        apr_byte_t      buffer[SHA256_BLOCK_LENGTH];
43} SHA256_CTX;
44
45
46/*** SHA-256/384/512 Function Prototypes ******************************/
47void apr__SHA256_Init(SHA256_CTX *);
48void apr__SHA256_Update(SHA256_CTX *, const apr_byte_t *, size_t);
49void apr__SHA256_Final(apr_byte_t [SHA256_DIGEST_LENGTH], SHA256_CTX *);
50char* apr__SHA256_End(SHA256_CTX *, char [SHA256_DIGEST_STRING_LENGTH]);
51char* apr__SHA256_Data(const apr_byte_t *, size_t,
52                  char [SHA256_DIGEST_STRING_LENGTH]);
53
54#ifdef  __cplusplus
55}
56#endif /* __cplusplus */
57
58#endif /* __SHA2_H__ */
59
60