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