NAME

       X509_get0_uids, X509_ACERT_get0_issuerUID - get certificate and attribute certificate unique identifiers

SYNOPSIS

        #include <openssl/x509.h>

        void X509_get0_uids(const X509 *x, const ASN1_BIT_STRING **piuid,
                            const ASN1_BIT_STRING **psuid);

        #include <openssl/x509_acert.h>

        ASN1_BIT_STRING *X509_ACERT_get0_issuerUID(X509_ACERT *x);
       =head1 DESCRIPTION

       X509_get0_uids() sets *piuid and *psuid to the issuer and subject unique identifiers of certificate x or
       NULL if the fields are not present.

       X509_ACERT_get0_issuerUID() returns the issuer unique identifier of the attribute certificate x or NULL
       if the field is not present.

NOTES

       The issuer and subject unique identifier fields are very rarely encountered in practice outside test
       cases.

RETURN VALUES

       X509_get0_uids() does not return a value.

       X509_ACERT_get0_issuerUID() returns a unique identifier on success or NULL on failure.

SEE ALSO

       d2i_X509(3), ERR_get_error(3), X509_CRL_get0_by_serial(3), X509_get0_signature(3), X509_get_ext_d2i(3),
       X509_get_extension_flags(3), X509_get_pubkey(3), X509_get_subject_name(3), X509_get_version(3),
       X509_NAME_add_entry_by_txt(3), X509_NAME_ENTRY_get_object(3), X509_NAME_get_index_by_NID(3),
       X509_NAME_print_ex(3), X509_new(3), X509_sign(3), X509V3_get_d2i(3), X509_verify_cert(3)

HISTORY

       X509_get0_uids() was added in OpenSSL 1.1.0.

       X509_ACERT_get0_issuerUID() was added in OpenSSL 3.4.

COPYRIGHT

       Copyright 2015-2024 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>.

3.4.1                                              2025-04-03                               X509_GET0_UIDS(3SSL)