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1 | =pod |
2 | ||
3 | =head1 NAME | |
4 | ||
4d524e10 | 5 | DSA_dup_DH - create a DH structure out of DSA structure |
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6 | |
7 | =head1 SYNOPSIS | |
8 | ||
9 | #include <openssl/dsa.h> | |
10 | ||
e9b77246 | 11 | DH *DSA_dup_DH(const DSA *r); |
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12 | |
13 | =head1 DESCRIPTION | |
14 | ||
15 | DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q | |
16 | is lost during that conversion, but the resulting DH parameters | |
17 | contain its length. | |
18 | ||
1f13ad31 | 19 | =head1 RETURN VALUES |
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20 | |
21 | DSA_dup_DH() returns the new B<DH> structure, and NULL on error. The | |
9b86974e | 22 | error codes can be obtained by L<ERR_get_error(3)>. |
38e33cef | 23 | |
74235cc9 UM |
24 | =head1 NOTE |
25 | ||
26 | Be careful to avoid small subgroup attacks when using this. | |
27 | ||
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28 | =head1 SEE ALSO |
29 | ||
b97fdb57 | 30 | L<DH_new(3)>, L<DSA_new(3)>, L<ERR_get_error(3)> |
38e33cef | 31 | |
e2f92610 RS |
32 | =head1 COPYRIGHT |
33 | ||
61f805c1 | 34 | Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. |
e2f92610 | 35 | |
4746f25a | 36 | Licensed under the Apache License 2.0 (the "License"). You may not use |
e2f92610 RS |
37 | this file except in compliance with the License. You can obtain a copy |
38 | in the file LICENSE in the source distribution or at | |
39 | L<https://www.openssl.org/source/license.html>. | |
40 | ||
41 | =cut |