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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>
53 typedef 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
65 extern "C" {
66 #endif
67
68 /**
69 * \brief SHA-1 context structure
70 */
71 typedef 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 }
80 sha1_context;
81
82 /**
83 * \brief Initialize SHA-1 context
84 *
85 * \param ctx SHA-1 context to be initialized
86 */
87 void sha1_init( sha1_context *ctx );
88
89 /**
90 * \brief Clear SHA-1 context
91 *
92 * \param ctx SHA-1 context to be cleared
93 */
94 void sha1_free( sha1_context *ctx );
95
96 /**
97 * \brief SHA-1 context setup
98 *
99 * \param ctx context to be initialized
100 */
101 void 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 */
110 void 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 */
118 void sha1_finish( sha1_context *ctx, unsigned char output[20] );
119
120 /* Internal use */
121 void 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
132 extern "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 */
142 void 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 */
152 int 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 */
161 void 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 */
171 void 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 */
180 void 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 */
187 void 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 */
198 void 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 */
207 int sha1_self_test( int verbose );
208
209 #ifdef __cplusplus
210 }
211 #endif
212
213 #endif /* sha1.h */
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