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37 lines
713 B
Plaintext
37 lines
713 B
Plaintext
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=pod
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=head1 NAME
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DSA_dup_DH - create a DH structure out of DSA structure
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=head1 SYNOPSIS
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#include <openssl/dsa.h>
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DH * DSA_dup_DH(const DSA *r);
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=head1 DESCRIPTION
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DSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q
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is lost during that conversion, but the resulting DH parameters
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contain its length.
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=head1 RETURN VALUE
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DSA_dup_DH() returns the new B<DH> structure, and NULL on error. The
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error codes can be obtained by L<ERR_get_error(3)|ERR_get_error(3)>.
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=head1 NOTE
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Be careful to avoid small subgroup attacks when using this.
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=head1 SEE ALSO
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L<dh(3)|dh(3)>, L<dsa(3)|dsa(3)>, L<ERR_get_error(3)|ERR_get_error(3)>
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=head1 HISTORY
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DSA_dup_DH() was added in OpenSSL 0.9.4.
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=cut
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