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DH_NEW(3) Library Functions Manual DH_NEW(3)

NAME

DH_new, DH_freeallocate and free DH objects

SYNOPSIS

#include <openssl/dh.h>
DH*
DH_new(void);
void
DH_free(DH *dh);

DESCRIPTION

The DH functions implement the Diffie-Hellman key agreement protocol.
DH_new() allocates and initializes a DH structure.
DH_free() frees the DH structure and its components. The values are erased before the memory is returned to the system. If dh is a NULL pointer, no action occurs.

RETURN VALUES

If the allocation fails, DH_new() returns NULL and sets an error code that can be obtained by ERR_get_error(3). Otherwise it returns a pointer to the newly allocated structure.

SEE ALSO

BN_new(3), d2i_DHparams(3), DH_generate_key(3), DH_generate_parameters(3), DH_get0_pqg(3), DH_get_ex_new_index(3), DH_set_method(3), DH_size(3), DHparams_print(3), DSA_dup_DH(3), ERR_get_error(3), EVP_PKEY_set1_DH(3)

HISTORY

DH_new() and DH_free() are available in all versions of SSLeay and OpenSSL.
February 17, 2018 OpenBSD-current