MirOS Manual: DSA_dup_DH(3)


DSA_DUP_DH(3)                OpenSSL                DSA_DUP_DH(3)

NAME

     DSA_dup_DH - create a DH structure out of DSA structure

SYNOPSIS

      #include <openssl/dsa.h>

      DH * DSA_dup_DH(const DSA *r);

DESCRIPTION

     DSA_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 VALUE

     DSA_dup_DH() returns the new DH structure, and NULL on
     error. The error codes can be obtained by ERR_get_error(3).

NOTE

     Be careful to avoid small subgroup attacks when using this.

SEE ALSO

     dh(3), dsa(3), ERR_get_error(3)

HISTORY

     DSA_dup_DH() was added in OpenSSL 0.9.4.

MirOS BSD #10-current      2005-02-05                           1

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