NAME    [Toc]    [Back]

       DSA_dup_DH - Create a DH structure out of DSA structure

SYNOPSIS    [Toc]    [Back]

       #include <openssl/dsa.h>

       DH * DSA_dup_DH(
               DSA *r );

DESCRIPTION    [Toc]    [Back]

       The  DSA_dup_DH()  function duplicates DSA parameters/keys
       as DH parameters/keys. The q is lost during  that  conversion,
  but the resulting DH parameters contain its length.

NOTES    [Toc]    [Back]

       Be careful to avoid  small  subgroup  attacks  when  using
       this.

RETURN VALUE    [Toc]    [Back]

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

HISTORY    [Toc]    [Back]

       The DSA_dup_DH() function was added in OpenSSL 0.9.4.

SEE ALSO    [Toc]    [Back]

       Functions: dh(3), dsa(3), err(3)



                                                    DSA_dup_DH(3)