NAME

DH_size - get Diffie-Hellman prime size

LIBRARY

libcrypto, -lcrypto

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

openssl_dh(3), DH_generate_key(3)

HISTORY

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