DH_size.3ssl man page

DH_size — get Diffie-Hellman prime size

Synopsis

#include <openssl/dh.h>
int DH_size(DH *dh);

Description

This function returns the Diffie-Hellman size in bytes. It can be used to determine how much memory must be allocated for the shared secret computed by DH_compute_key().

dh->p must not be NULL.

Return Value

The size in bytes.

See Also

dh(3), DH_generate_key(3)

History

DH_size() is available in all versions of SSLeay and OpenSSL.

Info

2016-09-26 1.0.2j OpenSSL