apr_sha1.h

浏览该文件的文档.

/* Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/* NIST Secure Hash Algorithm
 *  heavily modified by Uwe Hollerbach uh@alumni.caltech edu
 *  from Peter C. Gutmann's implementation as found in
 *  Applied Cryptography by Bruce Schneier
 *  This code is hereby placed in the public domain
 */
 
#ifndef APR_SHA1_H
#define APR_SHA1_H
 
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define APR_SHA1_DIGESTSIZE 20
 
#define APR_SHA1PW_ID "{SHA}"
 
#define APR_SHA1PW_IDLEN 5
 
typedef struct apr_sha1_ctx_t apr_sha1_ctx_t;
 
struct apr_sha1_ctx_t {
    unsigned int digest[5];
    unsigned int count_lo, count_hi;
    unsigned int data[16];
    int local;
};
 
void apr_sha1_init(apr_sha1_ctx_t *context);
 
void apr_sha1_update(apr_sha1_ctx_t *context, const char *input,
                     unsigned int inputLen);
 
void apr_sha1_update_binary(apr_sha1_ctx_t *context,
                            const unsigned char *input,
                            unsigned int inputLen);
 
void apr_sha1_final(unsigned char digest[APR_SHA1_DIGESTSIZE],
                    apr_sha1_ctx_t *context);
 
//calculate HMAC_SHA1
void HMAC_SHA1(unsigned char hmac[20], const unsigned char *key, int key_len,
               const unsigned char *message, int message_len);
 
 
#ifdef __cplusplus
}
#endif
 
#endif  /* APR_SHA1_H */