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