/src/openssl/crypto/engine/tb_ecdsa.c
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1 | | /* ==================================================================== |
2 | | * Copyright (c) 2000-2002 The OpenSSL Project. All rights reserved. |
3 | | * |
4 | | * Redistribution and use in source and binary forms, with or without |
5 | | * modification, are permitted provided that the following conditions |
6 | | * are met: |
7 | | * |
8 | | * 1. Redistributions of source code must retain the above copyright |
9 | | * notice, this list of conditions and the following disclaimer. |
10 | | * |
11 | | * 2. Redistributions in binary form must reproduce the above copyright |
12 | | * notice, this list of conditions and the following disclaimer in |
13 | | * the documentation and/or other materials provided with the |
14 | | * distribution. |
15 | | * |
16 | | * 3. All advertising materials mentioning features or use of this |
17 | | * software must display the following acknowledgment: |
18 | | * "This product includes software developed by the OpenSSL Project |
19 | | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
20 | | * |
21 | | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
22 | | * endorse or promote products derived from this software without |
23 | | * prior written permission. For written permission, please contact |
24 | | * licensing@OpenSSL.org. |
25 | | * |
26 | | * 5. Products derived from this software may not be called "OpenSSL" |
27 | | * nor may "OpenSSL" appear in their names without prior written |
28 | | * permission of the OpenSSL Project. |
29 | | * |
30 | | * 6. Redistributions of any form whatsoever must retain the following |
31 | | * acknowledgment: |
32 | | * "This product includes software developed by the OpenSSL Project |
33 | | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
34 | | * |
35 | | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
36 | | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
37 | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
38 | | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
39 | | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
40 | | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
41 | | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
42 | | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
43 | | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
44 | | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
45 | | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
46 | | * OF THE POSSIBILITY OF SUCH DAMAGE. |
47 | | * ==================================================================== |
48 | | * |
49 | | * This product includes cryptographic software written by Eric Young |
50 | | * (eay@cryptsoft.com). This product includes software written by Tim |
51 | | * Hudson (tjh@cryptsoft.com). |
52 | | * |
53 | | */ |
54 | | |
55 | | #include "eng_int.h" |
56 | | |
57 | | /* |
58 | | * If this symbol is defined then ENGINE_get_default_ECDSA(), the function |
59 | | * that is used by ECDSA to hook in implementation code and cache defaults |
60 | | * (etc), will display brief debugging summaries to stderr with the 'nid'. |
61 | | */ |
62 | | /* #define ENGINE_ECDSA_DEBUG */ |
63 | | |
64 | | static ENGINE_TABLE *ecdsa_table = NULL; |
65 | | static const int dummy_nid = 1; |
66 | | |
67 | | void ENGINE_unregister_ECDSA(ENGINE *e) |
68 | 0 | { |
69 | 0 | engine_table_unregister(&ecdsa_table, e); |
70 | 0 | } |
71 | | |
72 | | static void engine_unregister_all_ECDSA(void) |
73 | 0 | { |
74 | 0 | engine_table_cleanup(&ecdsa_table); |
75 | 0 | } |
76 | | |
77 | | int ENGINE_register_ECDSA(ENGINE *e) |
78 | 190 | { |
79 | 190 | if (e->ecdsa_meth) |
80 | 0 | return engine_table_register(&ecdsa_table, |
81 | 0 | engine_unregister_all_ECDSA, e, |
82 | 0 | &dummy_nid, 1, 0); |
83 | 190 | return 1; |
84 | 190 | } |
85 | | |
86 | | void ENGINE_register_all_ECDSA() |
87 | 0 | { |
88 | 0 | ENGINE *e; |
89 | |
|
90 | 0 | for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e)) |
91 | 0 | ENGINE_register_ECDSA(e); |
92 | 0 | } |
93 | | |
94 | | int ENGINE_set_default_ECDSA(ENGINE *e) |
95 | 0 | { |
96 | 0 | if (e->ecdsa_meth) |
97 | 0 | return engine_table_register(&ecdsa_table, |
98 | 0 | engine_unregister_all_ECDSA, e, |
99 | 0 | &dummy_nid, 1, 1); |
100 | 0 | return 1; |
101 | 0 | } |
102 | | |
103 | | /* |
104 | | * Exposed API function to get a functional reference from the implementation |
105 | | * table (ie. try to get a functional reference from the tabled structural |
106 | | * references). |
107 | | */ |
108 | | ENGINE *ENGINE_get_default_ECDSA(void) |
109 | 0 | { |
110 | 0 | return engine_table_select(&ecdsa_table, dummy_nid); |
111 | 0 | } |
112 | | |
113 | | /* Obtains an ECDSA implementation from an ENGINE functional reference */ |
114 | | const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e) |
115 | 0 | { |
116 | 0 | return e->ecdsa_meth; |
117 | 0 | } |
118 | | |
119 | | /* Sets an ECDSA implementation in an ENGINE structure */ |
120 | | int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth) |
121 | 0 | { |
122 | 0 | e->ecdsa_meth = ecdsa_meth; |
123 | 0 | return 1; |
124 | 0 | } |