Provided by: libssl-doc_3.0.10-1ubuntu2.3_all bug

NAME
       SSL_get_certificate, SSL_get_privatekey - retrieve TLS/SSL certificate and private key


SYNOPSIS
        #include <openssl/ssl.h>

        X509 *SSL_get_certificate(const SSL *s);
        EVP_PKEY *SSL_get_privatekey(const SSL *s);


DESCRIPTION
       SSL_get_certificate() returns a pointer to an X509 object representing a certificate used
       as the local peer's identity.

       Multiple certificates can be configured; for example, a server might have both RSA and
       ECDSA certificates. The certificate which is returned by SSL_get_certificate() is
       determined as follows:

       •   If it is called before certificate selection has occurred, it returns the most
           recently added certificate, or NULL if no certificate has been added.

       •   After certificate selection has occurred, it returns the certificate which was
           selected during the handshake, or NULL if no certificate was selected (for example, on
           a client where no client certificate is in use).

       Certificate selection occurs during the handshake; therefore, the value returned by
       SSL_get_certificate() during any callback made during the handshake process will depend on
       whether that callback is made before or after certificate selection occurs.

       A specific use for SSL_get_certificate() is inside a callback set via a call to
       SSL_CTX_set_tlsext_status_cb(3). This callback occurs after certificate selection, where
       it can be used to examine a server's chosen certificate, for example for the purpose of
       identifying a certificate's OCSP responder URL so that an OCSP response can be obtained.

       SSL_get_privatekey() returns a pointer to the EVP_PKEY object corresponding to the
       certificate returned by SSL_get_certificate(), if any.


RETURN VALUES
       These functions return pointers to their respective objects, or NULL if no such object is
       available. Returned objects are owned by the SSL object and should not be freed by users
       of these functions.


SEE ALSO
       ssl(7), SSL_CTX_set_tlsext_status_cb(3)


COPYRIGHT
       Copyright 2001-2022 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>.