$NetBSD: DSA_dup_DH.3,v 1.25 2024/09/08 13:08:19 christos Exp $
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Title "DSA_dup_DH 3"
way too many mistakes in technical documents.
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Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
Standard preamble:
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. ds C` "" . ds C' "" 'br\} . ds C` . ds C' 'br\}
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If the F register is >0, we'll generate index entries on stderr for
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Title "DSA_dup_DH 3"
DSA_dup_DH 3 2024-09-03 3.0.15 OpenSSL
For nroff, turn off justification. Always turn off hyphenation; it makesway too many mistakes in technical documents.
NAME
DSA_dup_DH - create a DH structure out of DSA structure
SYNOPSIS
Header "SYNOPSIS" .Vb 1
#include <openssl/dsa.h>
.Ve
The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros\|(7):
.Vb 1 DH *DSA_dup_DH(const DSA *r); .Ve
DESCRIPTION
Header "DESCRIPTION" The function described on this page is deprecated. There is no direct
replacement, applications should use the EVP_PKEY APIs for Diffie-Hellman
operations.
\fBDSA_dup_DH() duplicates DSA parameters/keys as DH parameters/keys. q is lost during that conversion, but the resulting DH parameters contain its length.
"RETURN VALUES"
Header "RETURN VALUES" \fBDSA_dup_DH() returns the new DH structure, and NULL on error. The
error codes can be obtained by ERR_get_error\|(3).
NOTE
Header "NOTE" Be careful to avoid small subgroup attacks when using this.
"SEE ALSO"
Header "SEE ALSO" \fBDH_new\|(3), DSA_new\|(3), ERR_get_error\|(3)
HISTORY
Header "HISTORY" This function was deprecated in OpenSSL 3.0.
COPYRIGHT
Header "COPYRIGHT" Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.