X509_ACERT_ADD_ATTR_NCONF(3ossl)

💖 X509_ACERT_ADD_ATTR_NCONF 💖

okay bestie, gather round, because this is the 3ossl manual page for X509_ACERT_add_attr_nconf — the little function that takes your config file section and goes "yes queen, let me turn all of this into attributes" 🌸

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✨ NAME ✨

X509_ACERT_add_attr_nconf — add attributes to an X509_ACERT straight from a configuration section 🎀

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🌈 SYNOPSIS 🌈

#include <openssl/x509_acert.h>

int X509_ACERT_add_attr_nconf(CONF *conf, const char *section,
                              X509_ACERT *acert);

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🦋 DESCRIPTION 🦋

so basically, X509_ACERT_add_attr_nconf() adds one or more X509_ATTRIBUTEs to an X509_ACERT structure you already have, and that structure is called acert. no cap. the attributes get read from a section of the conf object, so you're literally just pointing it at your config and letting it cook 🔥

the section you hand over should contain attribute descriptions that look like this:

attribute_name = value

and here's the tea: the format of value is gonna vary depending on what attribute_name is. value can either be a string value, or it can be an ASN1_TYPE object 💅

if you wanna encode an ASN1_TYPE object, you use the prefix "ASN1:" followed by the object description — and that description uses the exact same syntax as ASN1_generate_nconf(3). for example, bestie:

id-aca-group = ASN1:SEQUENCE:ietfattr

[ietfattr]
values = SEQUENCE:groups

[groups]
1.string = UTF8:mygroup1

it's giving structured. it's giving nested. it's giving iconic 🧚

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⭐ RETURN VALUES ⭐

X509_ACERT_add_attr_nconf() returns 1 for success and 0 for failure. that's it, that's the whole vibe check 🫶

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👑 SEE ALSO 👑

ASN1_generate_nconf(3).

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💜 HISTORY 💜

the function X509_ACERT_add_attr_nconf() was added in OpenSSL 3.4. so if you're on something older, she is simply not there yet, and that's on that 😭

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🎀 COPYRIGHT 🎀

Copyright 2023-2024 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>.

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and that's the whole page, bestie — written for the 3ossl manual, version 3.5.9, dated 2026-09-29. go forth and add those attributes 💖✨🌸