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pppcrypt.h
1 /*
2  * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1
3  *
4  * Extracted from chap_ms.c by James Carlson.
5  *
6  * Copyright (c) 1995 Eric Rosenquist. All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. The name(s) of the authors of this software must not be used to
21  * endorse or promote products derived from this software without
22  * prior written permission.
23  *
24  * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO
25  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
26  * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
27  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
28  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
29  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
30  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
31  */
32 
33 #include "ppp_opts.h"
34 #if PPP_SUPPORT /* don't build if not configured for use in ppp_opts.h */
35 
36 /* This header file is included in all PPP modules needing hashes and/or ciphers */
37 
38 #ifndef PPPCRYPT_H
39 #define PPPCRYPT_H
40 
41 #ifdef __cplusplus
42 extern "C" {
43 #endif
44 
45 /*
46  * Map hashes and ciphers functions to PolarSSL
47  */
48 #if !PPP_USE_EXTERNAL_MBEDTLS
49 
50 #include "polarssl/md4.h"
51 #define MD4_context md4_context
52 #define MD4_init(context)
53 #define MD4_starts md4_starts
54 #define MD4_update md4_update
55 #define MD4_finish md4_finish
56 #define MD4_free(context)
57 
58 #include "polarssl/md5.h"
59 #define MD5_context md5_context
60 #define MD5_init(context)
61 #define MD5_starts md5_starts
62 #define MD5_update md5_update
63 #define MD5_finish md5_finish
64 #define MD5_free(context)
65 
66 #include "polarssl/sha1.h"
67 #define SHA1_context sha1_context
68 #define SHA1_init(context)
69 #define SHA1_starts sha1_starts
70 #define SHA1_update sha1_update
71 #define SHA1_finish sha1_finish
72 #define SHA1_free(context)
73 
74 #include "polarssl/des.h"
75 #define Des_context des_context
76 #define Des_init(context)
77 #define Des_setkey_enc des_setkey_enc
78 #define Des_crypt_ecb des_crypt_ecb
79 #define Des_free(context)
80 
81 #include "polarssl/arc4.h"
82 #define ARC4_context arc4_context
83 #define ARC4_init(context)
84 #define ARC4_setup arc4_setup
85 #define ARC4_crypt arc4_crypt
86 #define ARC4_free(context)
87 
88 #endif /* !PPP_USE_EXTERNAL_MBEDTLS */
89 
90 /*
91  * Map hashes and ciphers functions to mbed TLS
92  */
93 #if PPP_USE_EXTERNAL_MBEDTLS
94 
95 #include "mbedtls/md5.h"
96 
97 #define MD4_context mbedtls_md4_context
98 #define MD4_init mbedtls_md4_init
99 #define MD4_starts mbedtls_md4_starts
100 #define MD4_update mbedtls_md4_update
101 #define MD4_finish mbedtls_md4_finish
102 #define MD4_free mbedtls_md4_free
103 
104 #define MD5_context mbedtls_md5_context
105 #define MD5_init mbedtls_md5_init
106 #define MD5_starts mbedtls_md5_starts
107 #define MD5_update mbedtls_md5_update
108 #define MD5_finish mbedtls_md5_finish
109 #define MD5_free mbedtls_md5_free
110 
111 #define SHA1_context mbedtls_sha1_context
112 #define SHA1_init mbedtls_sha1_init
113 #define SHA1_starts mbedtls_sha1_starts
114 #define SHA1_update mbedtls_sha1_update
115 #define SHA1_finish mbedtls_sha1_finish
116 #define SHA1_free mbedtls_sha1_free
117 
118 #define Des_context mbedtls_des_context
119 #define Des_init mbedtls_des_init
120 #define Des_setkey_enc mbedtls_des_setkey_enc
121 #define Des_crypt_ecb mbedtls_des_crypt_ecb
122 #define Des_free mbedtls_des_free
123 
124 #define ARC4_context mbedtls_arc4_context
125 #define ARC4_init mbedtls_arc4_init
126 #define ARC4_setup mbedtls_arc4_setup
127 #define ARC4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer)
128 #define ARC4_free mbedtls_arc4_free
129 
130 #endif /* PPP_USE_EXTERNAL_MBEDTLS */
131 
132 void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key);
133 
134 #ifdef __cplusplus
135 }
136 #endif
137 
138 #endif /* PPPCRYPT_H */
139 
140 #endif /* PPP_SUPPORT */
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