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X509_GET_SUBJECT_NAME(3ossl)        OpenSSL       X509_GET_SUBJECT_NAME(3ossl)



NAME

       X509_NAME_hash_ex, X509_NAME_hash, X509_get_subject_name,
       X509_set_subject_name, X509_subject_name_hash, X509_get_issuer_name,
       X509_set_issuer_name, X509_issuer_name_hash, X509_REQ_get_subject_name,
       X509_REQ_set_subject_name, X509_ACERT_get0_issuerName,
       X509_ACERT_set1_issuerName, X509_CRL_get_issuer,
       X509_CRL_set_issuer_name - get X509_NAME hashes or get and set issuer
       or subject names


SYNOPSIS

        #include <openssl/x509.h>

        unsigned long X509_NAME_hash_ex(const X509_NAME *x, OSSL_LIB_CTX *libctx,
                                        const char *propq, int *ok);

        X509_NAME *X509_get_subject_name(const X509 *x);
        int X509_set_subject_name(X509 *x, const X509_NAME *name);
        unsigned long X509_subject_name_hash(X509 *x);

        X509_NAME *X509_get_issuer_name(const X509 *x);
        int X509_set_issuer_name(X509 *x, const X509_NAME *name);
        unsigned long X509_issuer_name_hash(X509 *x);

        X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req);
        int X509_REQ_set_subject_name(X509_REQ *req, const X509_NAME *name);

        X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl);
        int X509_CRL_set_issuer_name(X509_CRL *x, const X509_NAME *name);

        #include <openssl/x509_acert.h>

        X509_NAME *X509_ACERT_get0_issuerName(const X509_ACERT *x);
        int X509_ACERT_set1_issuerName(X509_ACERT *x, const X509_NAME *name);

       The following macro has 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):

        #define X509_NAME_hash(x) X509_NAME_hash_ex(x, NULL, NULL, NULL)


DESCRIPTION

       X509_NAME_hash_ex() returns a hash value of name x or 0 on failure,
       using any given library context libctx and property query propq.  The
       ok result argument may be NULL or else is used to return 1 for success
       and 0 for failure.  Failure may happen on malloc error or if no SHA1
       implementation is available.

       X509_NAME_hash() returns a hash value of name x or 0 on failure, using
       the default library context and default property query.

       X509_get_subject_name(3) returns the subject name of certificate x. The
       returned value is an internal pointer which MUST NOT be freed.

       X509_set_subject_name() sets the issuer name of certificate x to name.
       The name parameter is copied internally and should be freed up when it
       is no longer needed.

       X509_subject_name_hash() returns a hash value of the subject name of
       certificate x.

       X509_get_issuer_name(), X509_set_issuer_name(), and
       X509_get_subject_name(3),
       X509_set_subject_name(), and X509_subject_name_hash() except they
       relate to the issuer name of x.

       Similarly X509_REQ_get_subject_name(), X509_REQ_set_subject_name(),
       X509_ACERT_get0_issuerName(), X509_ACERT_set1_issuerName(),
       X509_CRL_get_issuer() and X509_CRL_set_issuer_name() get or set the
       subject or issuer names of certificate requests of CRLs respectively.

       Since attribute certificates do not have a subject name, only the
       issuer name can be set.  For details on setting X509_ACERT holder
       identities, see X509_ACERT_set0_holder_entityName(3).


RETURN VALUES

       X509_get_subject_name(3), X509_get_issuer_name(),
       X509_REQ_get_subject_name() X509_ACERT_get0_issuerName() and
       X509_CRL_get_issuer() return an X509_NAME pointer.

       X509_NAME_hash_ex(), X509_NAME_hash(), X509_subject_name_hash() and
       X509_issuer_name_hash() return the first four bytes of the SHA1 hash
       value, converted to unsigned long in little endian order, or 0 on
       failure.

       X509_set_subject_name(), X509_set_issuer_name(),
       X509_REQ_set_subject_name(), X509_ACERT_get0_issuerName() and
       X509_CRL_set_issuer_name() return 1 for success and 0 for failure.


BUGS

       In case X509_NAME_hash(), X509_subject_name_hash(), or
       X509_issuer_name_hash() returns 0 it remains unclear if this is the
       real hash value or due to failure.  Better use X509_NAME_hash_ex()
       instead.


SEE ALSO

       d2i_X509(3), ERR_get_error(3), d2i_X509(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_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_REQ_get_subject_name() is a function in OpenSSL 1.1.0 and a macro
       in earlier versions.

       X509_CRL_get_issuer() is a function in OpenSSL 1.1.0. It was previously
       added in OpenSSL 1.0.0 as a macro.

       X509_NAME_hash() was turned into a macro and deprecated in OpenSSL 3.0.


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>.

3.4.0                             2024-10-29      X509_GET_SUBJECT_NAME(3ossl)

openssl 3.4.0 - Generated Tue Nov 19 13:35:26 CST 2024
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