D2I_DHPARAMS(3)            Library Functions Manual            D2I_DHPARAMS(3)

NAME
     d2i_DHparams, i2d_DHparams - PKCS#3 DH parameter functions

SYNOPSIS
     #include <openssl/dh.h>

     DH *
     d2i_DHparams(DH **a, unsigned char **pp, long length);

     int
     i2d_DHparams(DH *a, unsigned char **pp);

DESCRIPTION
     These functions decode and encode PKCS#3 DH parameters using the
     DHparameter structure described in PKCS#3.  They otherwise behave in a
     way similar to d2i_X509(3) and i2d_X509(3).

RETURN VALUES
     d2i_DHparams() returns a DH object or NULL if an error occurs.

     i2d_DHparams() returns the number of bytes successfully encoded or a
     value <= 0 if an error occurs.

SEE ALSO
     d2i_X509(3), DH_new(3)

HISTORY
     d2i_DHparams() and i2d_DHparams() first appeared in SSLeay 0.5.1 and have
     been available since OpenBSD 2.4.

Linux 6.8.7-arch1-1             March 27, 2018             Linux 6.8.7-arch1-1