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80a47a2c TK |
1 | /** |
2 | * \file sha1.h | |
3 | * | |
62d3e98d TK |
4 | * Copyright (C) 2006-2010, Brainspark B.V. |
5 | * | |
6 | * This file is part of PolarSSL (http://www.polarssl.org) | |
7 | * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org> | |
80a47a2c | 8 | * |
62d3e98d | 9 | * All rights reserved. |
80a47a2c TK |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
22 | * with this program; if not, write to the Free Software Foundation, Inc., | |
23 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
24 | */ | |
25 | ||
80a47a2c TK |
26 | #ifndef POLARSSL_SHA1_H |
27 | #define POLARSSL_SHA1_H | |
28 | ||
29 | /** | |
30 | * \brief SHA-1 context structure | |
31 | */ | |
32 | #ifndef HAVE_SHA1_CONTEXT | |
33 | #define HAVE_SHA1_CONTEXT | |
34 | typedef struct sha1_context sha1_context; | |
35 | #endif | |
36 | ||
37 | struct sha1_context | |
38 | { | |
39 | unsigned long total[2]; /*!< number of bytes processed */ | |
40 | unsigned long state[5]; /*!< intermediate digest state */ | |
41 | unsigned char buffer[64]; /*!< data block being processed */ | |
42 | ||
43 | unsigned char ipad[64]; /*!< HMAC: inner padding */ | |
44 | unsigned char opad[64]; /*!< HMAC: outer padding */ | |
45 | }; | |
46 | ||
47 | #ifdef __cplusplus | |
48 | extern "C" { | |
49 | #endif | |
50 | ||
51 | /** | |
52 | * \brief SHA-1 context setup | |
53 | * | |
54 | * \param ctx context to be initialized | |
55 | */ | |
56 | void sha1_starts( sha1_context *ctx ); | |
57 | ||
58 | /** | |
59 | * \brief SHA-1 process buffer | |
60 | * | |
61 | * \param ctx SHA-1 context | |
62 | * \param input buffer holding the data | |
63 | * \param ilen length of the input data | |
64 | */ | |
62d3e98d | 65 | void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen ); |
80a47a2c TK |
66 | |
67 | /** | |
68 | * \brief SHA-1 final digest | |
69 | * | |
70 | * \param ctx SHA-1 context | |
71 | * \param output SHA-1 checksum result | |
72 | */ | |
73 | void sha1_finish( sha1_context *ctx, unsigned char output[20] ); | |
74 | ||
75 | /** | |
76 | * \brief Output = SHA-1( input buffer ) | |
77 | * | |
78 | * \param input buffer holding the data | |
79 | * \param ilen length of the input data | |
80 | * \param output SHA-1 checksum result | |
81 | */ | |
62d3e98d | 82 | void sha1( const unsigned char *input, int ilen, unsigned char output[20] ); |
80a47a2c TK |
83 | |
84 | /** | |
85 | * \brief Output = SHA-1( file contents ) | |
86 | * | |
87 | * \param path input file name | |
88 | * \param output SHA-1 checksum result | |
89 | * | |
90 | * \return 0 if successful, 1 if fopen failed, | |
91 | * or 2 if fread failed | |
92 | */ | |
62d3e98d | 93 | int sha1_file( const char *path, unsigned char output[20] ); |
80a47a2c TK |
94 | |
95 | /** | |
96 | * \brief SHA-1 HMAC context setup | |
97 | * | |
98 | * \param ctx HMAC context to be initialized | |
99 | * \param key HMAC secret key | |
100 | * \param keylen length of the HMAC key | |
101 | */ | |
62d3e98d | 102 | void sha1_hmac_starts( sha1_context *ctx, const unsigned char *key, int keylen ); |
80a47a2c TK |
103 | |
104 | /** | |
105 | * \brief SHA-1 HMAC process buffer | |
106 | * | |
107 | * \param ctx HMAC context | |
108 | * \param input buffer holding the data | |
109 | * \param ilen length of the input data | |
110 | */ | |
62d3e98d | 111 | void sha1_hmac_update( sha1_context *ctx, const unsigned char *input, int ilen ); |
80a47a2c TK |
112 | |
113 | /** | |
114 | * \brief SHA-1 HMAC final digest | |
115 | * | |
116 | * \param ctx HMAC context | |
117 | * \param output SHA-1 HMAC checksum result | |
118 | */ | |
119 | void sha1_hmac_finish( sha1_context *ctx, unsigned char output[20] ); | |
120 | ||
62d3e98d TK |
121 | /** |
122 | * \brief SHA-1 HMAC context reset | |
123 | * | |
124 | * \param ctx HMAC context to be reset | |
125 | */ | |
126 | void sha1_hmac_reset( sha1_context *ctx ); | |
127 | ||
80a47a2c TK |
128 | /** |
129 | * \brief Output = HMAC-SHA-1( hmac key, input buffer ) | |
130 | * | |
131 | * \param key HMAC secret key | |
132 | * \param keylen length of the HMAC key | |
133 | * \param input buffer holding the data | |
134 | * \param ilen length of the input data | |
135 | * \param output HMAC-SHA-1 result | |
136 | */ | |
62d3e98d TK |
137 | void sha1_hmac( const unsigned char *key, int keylen, |
138 | const unsigned char *input, int ilen, | |
80a47a2c TK |
139 | unsigned char output[20] ); |
140 | ||
141 | #ifdef __cplusplus | |
142 | } | |
143 | #endif | |
144 | ||
145 | #endif /* sha1.h */ |