DSA_dup_DH 3 2003-07-24 0.9.9-dev OpenSSL
NAME
DSA_dup_DH - create a DH structure out of DSA structure
LIBRARY
libcrypto, -lcrypto
SYNOPSIS
#include
DH * DSA_dup_DH(const DSA *r);
DESCRIPTION
_D_S_A___d_u_p___D_H_(_) duplicates DSA parameters/keys as DH parameters/keys. q
is lost during that conversion, but the resulting DH parameters
contain its length.
RETURN VALUE
_D_S_A___d_u_p___D_H_(_) returns the new DDHH structure, and NULL on error. The
error codes can be obtained by _E_R_R___g_e_t___e_r_r_o_r(3).
NOTE
Be careful to avoid small subgroup attacks when using this.
SEE ALSO
_o_p_e_n_s_s_l___d_h(3), _o_p_e_n_s_s_l___d_s_a(3), _E_R_R___g_e_t___e_r_r_o_r(3)
HISTORY
_D_S_A___d_u_p___D_H_(_) was added in OpenSSL 0.9.4.