ECPKPARAMETERS_PRINT(3ossl)

📦
version 3.5.9 · 8 versions
, in fedora 43, fedora 44

💖 ECPKPARAMETERS_PRINT 💖

okay bestie, welcome to the OpenSSL manual, page ECPKPARAMETERS_PRINT(3ossl) 🎀 — yes it's a mouthful, yes it's giving "I typed this with my eyes closed", but stay with me, it's actually kinda simple.

🌸 NAME 🌸

ECPKParameters_print, ECPKParameters_print_fp — functions for decoding and encoding ASN1 representations of elliptic curve entities ✨

🦋 SYNOPSIS 🦋

#include <openssl/ec.h>

so like… heads up 🙈 the following functions have been deprecated since OpenSSL 3.0, and they can be hidden entirely by defining OPENSSL_API_COMPAT with a suitable version value — go peek at openssl_user_macros(7) for the deets:

int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off);
int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off);

💅 DESCRIPTION 💅

okay so, ALL of the functions described on this page are deprecated, no cap. like every single one. if you're writing an app, bestie, you should instead use EVP_PKEY_print_params(3) 🫶

The ECPKParameters represent the public parameters for an EC_GROUP structure, which represents a curve. that's the vibe — curve in, parameters out 🌈

The ECPKParameters_print() and ECPKParameters_print_fp() functions print a human-readable output of the public parameters of the EC_GROUP to bp or fp. the output lines are indented by off spaces. yes, that's the whole thing, it's lowkey just a pretty-printer 💖

✨ RETURN VALUES ✨

ECPKParameters_print() and ECPKParameters_print_fp() return 1 for success and 0 if an error occurs. that's it, that's the range, it's giving binary, it's giving yes-or-no 🎀

👑 SEE ALSO 👑

📜 HISTORY 📜

All of these functions were deprecated in OpenSSL 3.0. not me showing up late to the party to tell you it's over 😭

Copyright 2013-2021 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>.

💀 real talk: this page is deprecated-coded. don't build new stuff on it, use EVP_PKEY_print_params(3) and move on, periodt.

and that's a wrap on the OpenSSL 3.5.9 edition, dated 2026-09-29 — ty for coming to my ted talk, ily, go read crypto(7) 💜🌸

📦 where this page comes from