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20bee968 DSH |
1 | /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL |
2 | * project 2011. | |
3 | */ | |
4 | /* ==================================================================== | |
5 | * Copyright (c) 2011 The OpenSSL Project. All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in | |
16 | * the documentation and/or other materials provided with the | |
17 | * distribution. | |
18 | * | |
19 | * 3. All advertising materials mentioning features or use of this | |
20 | * software must display the following acknowledgment: | |
21 | * "This product includes software developed by the OpenSSL Project | |
22 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
23 | * | |
24 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
25 | * endorse or promote products derived from this software without | |
26 | * prior written permission. For written permission, please contact | |
27 | * licensing@OpenSSL.org. | |
28 | * | |
29 | * 5. Products derived from this software may not be called "OpenSSL" | |
30 | * nor may "OpenSSL" appear in their names without prior written | |
31 | * permission of the OpenSSL Project. | |
32 | * | |
33 | * 6. Redistributions of any form whatsoever must retain the following | |
34 | * acknowledgment: | |
35 | * "This product includes software developed by the OpenSSL Project | |
36 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
37 | * | |
38 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
39 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
40 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
41 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
42 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
43 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
44 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
45 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
46 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
47 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
48 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
49 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
50 | * ==================================================================== | |
51 | * | |
52 | * This product includes cryptographic software written by Eric Young | |
53 | * (eay@cryptsoft.com). This product includes software written by Tim | |
54 | * Hudson (tjh@cryptsoft.com). | |
55 | * | |
56 | */ | |
57 | ||
58 | #include <stdio.h> | |
59 | #include "cryptlib.h" | |
60 | #include <openssl/dh.h> | |
61 | #include <openssl/bn.h> | |
62 | ||
829ccf6a MC |
63 | #define make_dh_bn(x) \ |
64 | const extern BIGNUM _bignum_dh##x##_p;\ | |
65 | const extern BIGNUM _bignum_dh##x##_g;\ | |
66 | const extern BIGNUM _bignum_dh##x##_q; | |
20bee968 DSH |
67 | |
68 | /* Macro to make a DH structure from BIGNUM data. NB: although just copying | |
69 | * the BIGNUM static pointers would be more efficient we can't as they get | |
70 | * wiped using BN_clear_free() when DH_free() is called. | |
71 | */ | |
72 | ||
73 | #define make_dh(x) \ | |
74 | DH * DH_get_##x(void) \ | |
75 | { \ | |
76 | DH *dh; \ | |
20bee968 DSH |
77 | dh = DH_new(); \ |
78 | if (!dh) \ | |
79 | return NULL; \ | |
80 | dh->p = BN_dup(&_bignum_dh##x##_p); \ | |
81 | dh->g = BN_dup(&_bignum_dh##x##_g); \ | |
82 | dh->q = BN_dup(&_bignum_dh##x##_q); \ | |
83 | if (!dh->p || !dh->q || !dh->g) \ | |
84 | { \ | |
85 | DH_free(dh); \ | |
86 | return NULL; \ | |
87 | } \ | |
88 | return dh; \ | |
89 | } | |
90 | ||
829ccf6a MC |
91 | make_dh_bn(1024_160) |
92 | make_dh_bn(2048_224) | |
93 | make_dh_bn(2048_256) | |
94 | ||
20bee968 DSH |
95 | make_dh(1024_160) |
96 | make_dh(2048_224) | |
97 | make_dh(2048_256) | |
98 | ||
99 |