SSL_CTX_SET1_...FY_CERT_STORE(3SSL)

📦
version 4.0.3 · 13 versions
, in ubuntu stonking

okay so bestie, welcome to the SSL_CTX_SET1_...FY_CERT_STORE(3SSL) page — it's giving OpenSSL cert-store energy, and honestly? iconic. 💅✨

🎀 NAME 🎀

The whole squad is: SSL_CTX_set0_verify_cert_store, SSL_CTX_set1_verify_cert_store, SSL_CTX_set0_chain_cert_store, SSL_CTX_set1_chain_cert_store, SSL_set0_verify_cert_store, SSL_set1_verify_cert_store, SSL_set0_chain_cert_store, SSL_set1_chain_cert_store, SSL_CTX_get0_verify_cert_store, SSL_CTX_get0_chain_cert_store, SSL_get0_verify_cert_store, SSL_get0_chain_cert_store — and their job is literally to set certificate verification or chain store. 💖

✨ SYNOPSIS ✨

#include <openssl/ssl.h>

int SSL_CTX_set0_verify_cert_store(SSL_CTX *ctx, X509_STORE *st);
int SSL_CTX_set1_verify_cert_store(SSL_CTX *ctx, X509_STORE *st);
int SSL_CTX_set0_chain_cert_store(SSL_CTX *ctx, X509_STORE *st);
int SSL_CTX_set1_chain_cert_store(SSL_CTX *ctx, X509_STORE *st);
int SSL_CTX_get0_verify_cert_store(SSL_CTX *ctx, X509_STORE **st);
int SSL_CTX_get0_chain_cert_store(SSL_CTX *ctx, X509_STORE **st);

int SSL_set0_verify_cert_store(SSL *ctx, X509_STORE *st);
int SSL_set1_verify_cert_store(SSL *ctx, X509_STORE *st);
int SSL_set0_chain_cert_store(SSL *ctx, X509_STORE *st);
int SSL_set1_chain_cert_store(SSL *ctx, X509_STORE *st);
int SSL_get0_verify_cert_store(SSL *ctx, X509_STORE **st);
int SSL_get0_chain_cert_store(SSL *ctx, X509_STORE **st);

💖 DESCRIPTION 💖

okay so lowkey here's the tea: ☕️

  • SSL_CTX_set0_verify_cert_store() and SSL_CTX_set1_verify_cert_store() set the certificate store used for certificate verification to st. ✨
  • SSL_CTX_set0_chain_cert_store() and SSL_CTX_set1_chain_cert_store() set the certificate store used for certificate chain building to st. 🔗
  • SSL_set0_verify_cert_store(), SSL_set1_verify_cert_store(), SSL_set0_chain_cert_store() and SSL_set1_chain_cert_store() are similar except they apply to SSL structure ssl. 👑
  • SSL_CTX_get0_verify_chain_store(), SSL_get0_verify_chain_store(), SSL_CTX_get0_chain_cert_store() and SSL_get0_chain_cert_store() retrieve the objects previously set via the above calls. A pointer to the object (or NULL if no such object has been set) is written to *st. 🫶
  • All these functions are implemented as macros. Those containing a 1 increment the reference count of the supplied store so it must be freed at some point after the operation. Those containing a 0 do not increment reference counts and the supplied store MUST NOT be freed after the operation. 💀

📝 NOTES 📝

the way that these stores work is a whole saga, so listen up:

The stores pointers associated with an SSL_CTX structure are copied to any SSL structures when SSL_new() is called. As a result SSL structures will not be affected if the parent SSL_CTX store pointer is set to a new value. 🧬

The verification store is used to verify the certificate chain sent by the peer: that is an SSL/TLS client will use the verification store to verify the server's certificate chain and an SSL/TLS server will use it to verify any client certificate chain. 🔍

The chain store is used to build the certificate chain. Details of the chain building and checking process are described in "Certification Path Building" in openssl-verification-options(1) and "Certification Path Validation" in openssl-verification-options(1). 📚

If the mode SSL_MODE_NO_AUTO_CHAIN is set or a certificate chain is configured already (for example using the functions such as SSL_CTX_add1_chain_cert(3) or SSL_CTX_add_extra_chain_cert(3)) then automatic chain building is disabled. 🚫

If the mode SSL_MODE_NO_AUTO_CHAIN is set then automatic chain building is disabled. (yes, again, periodt.) 💅

If the chain or the verification store is not set then the store associated with the parent SSL_CTX is used instead to retain compatibility with previous versions of OpenSSL. 🫡

✅ RETURN VALUES ✅

All these functions return 1 for success and 0 for failure. no cap. ✨

👀 SEE ALSO 👀

go read these next, bestie:

🕰️ HISTORY 🕰️

These functions were added in OpenSSL 1.0.2. vintage, but still slaying. 🕶️

Copyright 2013-2022 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>. 🌸

stay iconic, bestie — this was OpenSSL 4.0.3, dated 2026-09-2, for the SSL_CTX_SET1_...FY_CERT_STORE(3SSL) manual page. mwah! 🫶💅✨

📦 where this page comes from