DH_NEW_BY_NID(3ossl)

📦
version 15.1 · 2 versions
, in freebsd 15.1

✨ NAME ✨

okay bestie, welcome to DH_NEW_BY_NID(3ossl) — the page for DH_new_by_nid and DH_get_nid, aka create or get DH named parameters. slay.

🦋 SYNOPSIS 🦋

#include <openssl/dh.h>

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value, see openssl_user_macros(7):

DH *DH_new_by_nid(int nid);

int DH_get_nid(const DH *dh);

🌸 DESCRIPTION 🌸

DH_new_by_nid() creates and returns a DH structure containing named parameters nid. Currently nid must be NID_ffdhe2048, NID_ffdhe3072, NID_ffdhe4096, NID_ffdhe6144, NID_ffdhe8192, NID_modp_1536, NID_modp_2048, NID_modp_3072, NID_modp_4096, NID_modp_6144 or NID_modp_8192. periodt.

DH_get_nid() determines if the parameters contained in dh match any named safe prime group. It returns the NID corresponding to the matching parameters or NID_undef if there is no match. This function is deprecated. iykyk 💅

🎀 RETURN VALUES 🎀

  • DH_new_by_nid() — returns a set of DH parameters or NULL if an error occurred. not the vibe when it's NULL, fr.
  • DH_get_nid() — returns the NID of the matching set of parameters for p and g and optionally q, otherwise it returns NID_undef if there is no match. match made in crypto heaven or nothing, bestie.

🦋 HISTORY 🦋

All of these functions were deprecated in OpenSSL 3.0. yes, all of them — iconic but retired energy.

Copyright 2017-2020 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>.

mwah 💋 this page is from OpenSSL 3.5.6, dated 2026-04-07, and the manual name is DH_NEW_BY_NID(3ossl) — that's the whole cute little footer, bestie. 🫶

📦 where this page comes from