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1/**
2 * \file sha1.h
3 *
4 * \brief SHA-1 cryptographic hash function
5 *
6 * Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
7 *
8 * This file is part of mbed TLS (https://tls.mbed.org)
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 */
24#ifndef POLARSSL_SHA1_H
25#define POLARSSL_SHA1_H
26
27#if !defined(POLARSSL_CONFIG_FILE)
28//#include "config.h"
29/**
30 * \def POLARSSL_SHA1_C
31 *
32 * Enable the SHA1 cryptographic hash algorithm.
33 *
34 * Module: library/sha1.c
35 * Caller: library/md.c
36 * library/ssl_cli.c
37 * library/ssl_srv.c
38 * library/ssl_tls.c
39 * library/x509write_crt.c
40 *
41 * This module is required for SSL/TLS and SHA1-signed certificates.
42 */
43#define POLARSSL_SHA1_C
44
45#else
46#include POLARSSL_CONFIG_FILE
47#endif
48
49#include <stddef.h>
50
51#if defined(_MSC_VER) && !defined(EFIX64) && !defined(EFI32)
52#include <basetsd.h>
53typedef UINT32 uint32_t;
54#else
55#include <inttypes.h>
56#endif
57
58#define POLARSSL_ERR_SHA1_FILE_IO_ERROR -0x0076 /**< Read/write error in file. */
59
60#if !defined(POLARSSL_SHA1_ALT)
61// Regular implementation
62//
63
64#ifdef __cplusplus
65extern "C" {
66#endif
67
68/**
69 * \brief SHA-1 context structure
70 */
71typedef struct
72{
73 uint32_t total[2]; /*!< number of bytes processed */
74 uint32_t state[5]; /*!< intermediate digest state */
75 unsigned char buffer[64]; /*!< data block being processed */
76
77 unsigned char ipad[64]; /*!< HMAC: inner padding */
78 unsigned char opad[64]; /*!< HMAC: outer padding */
79}
80sha1_context;
81
82/**
83 * \brief Initialize SHA-1 context
84 *
85 * \param ctx SHA-1 context to be initialized
86 */
87void sha1_init( sha1_context *ctx );
88
89/**
90 * \brief Clear SHA-1 context
91 *
92 * \param ctx SHA-1 context to be cleared
93 */
94void sha1_free( sha1_context *ctx );
95
96/**
97 * \brief SHA-1 context setup
98 *
99 * \param ctx context to be initialized
100 */
101void sha1_starts( sha1_context *ctx );
102
103/**
104 * \brief SHA-1 process buffer
105 *
106 * \param ctx SHA-1 context
107 * \param input buffer holding the data
108 * \param ilen length of the input data
109 */
110void sha1_update( sha1_context *ctx, const unsigned char *input, size_t ilen );
111
112/**
113 * \brief SHA-1 final digest
114 *
115 * \param ctx SHA-1 context
116 * \param output SHA-1 checksum result
117 */
118void sha1_finish( sha1_context *ctx, unsigned char output[20] );
119
120/* Internal use */
121void sha1_process( sha1_context *ctx, const unsigned char data[64] );
122
123#ifdef __cplusplus
124}
125#endif
126
127#else /* POLARSSL_SHA1_ALT */
128#include "sha1_alt.h"
129#endif /* POLARSSL_SHA1_ALT */
130
131#ifdef __cplusplus
132extern "C" {
133#endif
134
135/**
136 * \brief Output = SHA-1( input buffer )
137 *
138 * \param input buffer holding the data
139 * \param ilen length of the input data
140 * \param output SHA-1 checksum result
141 */
142void sha1( const unsigned char *input, size_t ilen, unsigned char output[20] );
143
144/**
145 * \brief Output = SHA-1( file contents )
146 *
147 * \param path input file name
148 * \param output SHA-1 checksum result
149 *
150 * \return 0 if successful, or POLARSSL_ERR_SHA1_FILE_IO_ERROR
151 */
152int sha1_file( const char *path, unsigned char output[20] );
153
154/**
155 * \brief SHA-1 HMAC context setup
156 *
157 * \param ctx HMAC context to be initialized
158 * \param key HMAC secret key
159 * \param keylen length of the HMAC key
160 */
161void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key,
162 size_t keylen );
163
164/**
165 * \brief SHA-1 HMAC process buffer
166 *
167 * \param ctx HMAC context
168 * \param input buffer holding the data
169 * \param ilen length of the input data
170 */
171void sha1_hmac_update( sha1_context *ctx, const unsigned char *input,
172 size_t ilen );
173
174/**
175 * \brief SHA-1 HMAC final digest
176 *
177 * \param ctx HMAC context
178 * \param output SHA-1 HMAC checksum result
179 */
180void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] );
181
182/**
183 * \brief SHA-1 HMAC context reset
184 *
185 * \param ctx HMAC context to be reset
186 */
187void sha1_hmac_reset( sha1_context *ctx );
188
189/**
190 * \brief Output = HMAC-SHA-1( hmac key, input buffer )
191 *
192 * \param key HMAC secret key
193 * \param keylen length of the HMAC key
194 * \param input buffer holding the data
195 * \param ilen length of the input data
196 * \param output HMAC-SHA-1 result
197 */
198void sha1_hmac( const unsigned char *key, size_t keylen,
199 const unsigned char *input, size_t ilen,
200 unsigned char output[20] );
201
202/**
203 * \brief Checkup routine
204 *
205 * \return 0 if successful, or 1 if the test failed
206 */
207int sha1_self_test( int verbose );
208
209#ifdef __cplusplus
210}
211#endif
212
213#endif /* sha1.h */
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