ECPKParameters_print(3)

ECPKParameters_print(3) | OpenSSL | ECPKParameters_print(3)

# NAME

ECPKParameters_print, ECPKParameters_print_fp - Functions for decoding and encoding ASN1 representations of elliptic curve entities

# SYNOPSIS

     #include <openssl/ec.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):

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

# DESCRIPTION

All of the functions described on this page are deprecated. Applications should instead use EVP_PKEY_print_params(3)

The ECPKParameters represent the public parameters for an EC_GROUP structure, which represents a curve.

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.

# RETURN VALUES

ECPKParameters_print() and ECPKParameters_print_fp() return 1 for success and 0 if an error occurs.

# SEE ALSO

crypto(7), EC_GROUP_new(3), EC_GROUP_copy(3), EC_POINT_new(3), EC_POINT_add(3), EC_KEY_new(3), EC_GFp_simple_method(3),

# HISTORY

All of these functions were deprecated in OpenSSL 3.0.

# COPYRIGHT

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>.

2026-06-09 | 3.5.7