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sha2.h

00001 /* Copyright 2003-2004 The Apache Software Foundation
00002  *
00003  * Licensed under the Apache License, Version 2.0 (the "License");
00004  * you may not use this file except in compliance with the License.
00005  * You may obtain a copy of the License at
00006  *
00007  *     http://www.apache.org/licenses/LICENSE-2.0
00008  *
00009  * Unless required by applicable law or agreed to in writing, software
00010  * distributed under the License is distributed on an "AS IS" BASIS,
00011  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00012  * See the License for the specific language governing permissions and
00013  * limitations under the License.
00014  */
00015 /*
00016  * FILE:        sha2.h
00017  * AUTHOR:      Aaron D. Gifford <me@aarongifford.com>
00018  * 
00019  * A licence was granted to the ASF by Aaron on 4 November 2003.
00020  */
00021 
00022 #ifndef __SHA2_H__
00023 #define __SHA2_H__
00024 
00025 #ifdef __cplusplus
00026 extern "C" {
00027 #endif
00028 
00029 #include "apr.h"
00030 
00031 /*** SHA-256/384/512 Various Length Definitions ***********************/
00032 #define SHA256_BLOCK_LENGTH             64
00033 #define SHA256_DIGEST_LENGTH            32
00034 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
00035 #define SHA384_BLOCK_LENGTH             128
00036 #define SHA384_DIGEST_LENGTH            48
00037 #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
00038 #define SHA512_BLOCK_LENGTH             128
00039 #define SHA512_DIGEST_LENGTH            64
00040 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
00041 
00042 
00043 /*** SHA-256/384/512 Context Structures *******************************/
00044 typedef struct _SHA256_CTX {
00045         apr_uint32_t    state[8];
00046         apr_uint64_t    bitcount;
00047         apr_byte_t      buffer[SHA256_BLOCK_LENGTH];
00048 } SHA256_CTX;
00049 typedef struct _SHA512_CTX {
00050         apr_uint64_t    state[8];
00051         apr_uint64_t    bitcount[2];
00052         apr_byte_t      buffer[SHA512_BLOCK_LENGTH];
00053 } SHA512_CTX;
00054 
00055 typedef SHA512_CTX SHA384_CTX;
00056 
00057 
00058 /*** SHA-256/384/512 Function Prototypes ******************************/
00059 void SHA256_Init(SHA256_CTX *);
00060 void SHA256_Update(SHA256_CTX *, const apr_byte_t *, size_t);
00061 void SHA256_Final(apr_byte_t [SHA256_DIGEST_LENGTH], SHA256_CTX *);
00062 char* SHA256_End(SHA256_CTX *, char [SHA256_DIGEST_STRING_LENGTH]);
00063 char* SHA256_Data(const apr_byte_t *, size_t,
00064                   char [SHA256_DIGEST_STRING_LENGTH]);
00065 
00066 void SHA384_Init(SHA384_CTX *);
00067 void SHA384_Update(SHA384_CTX *, const apr_byte_t *, size_t);
00068 void SHA384_Final(apr_byte_t [SHA384_DIGEST_LENGTH], SHA384_CTX *);
00069 char* SHA384_End(SHA384_CTX *, char [SHA384_DIGEST_STRING_LENGTH]);
00070 char* SHA384_Data(const apr_byte_t *, size_t,
00071                   char [SHA384_DIGEST_STRING_LENGTH]);
00072 
00073 void SHA512_Init(SHA512_CTX *);
00074 void SHA512_Update(SHA512_CTX *, const apr_byte_t *, size_t);
00075 void SHA512_Final(apr_byte_t [SHA512_DIGEST_LENGTH], SHA512_CTX *);
00076 char* SHA512_End(SHA512_CTX *, char [SHA512_DIGEST_STRING_LENGTH]);
00077 char* SHA512_Data(const apr_byte_t *, size_t,
00078                   char [SHA512_DIGEST_STRING_LENGTH]);
00079 
00080 #ifdef  __cplusplus
00081 }
00082 #endif /* __cplusplus */
00083 
00084 #endif /* __SHA2_H__ */
00085 

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