1X509_GET_SUBJECT_NAME(3ossl)        OpenSSL       X509_GET_SUBJECT_NAME(3ossl)
2
3
4

NAME

6       X509_NAME_hash_ex, X509_NAME_hash, X509_get_subject_name,
7       X509_set_subject_name, X509_subject_name_hash, X509_get_issuer_name,
8       X509_set_issuer_name, X509_issuer_name_hash, X509_REQ_get_subject_name,
9       X509_REQ_set_subject_name, X509_CRL_get_issuer,
10       X509_CRL_set_issuer_name - get X509_NAME hashes or get and set issuer
11       or subject names
12

SYNOPSIS

14        #include <openssl/x509.h>
15
16        unsigned long X509_NAME_hash_ex(const X509_NAME *x, OSSL_LIB_CTX *libctx,
17                                        const char *propq, int *ok);
18
19        X509_NAME *X509_get_subject_name(const X509 *x);
20        int X509_set_subject_name(X509 *x, const X509_NAME *name);
21        unsigned long X509_subject_name_hash(X509 *x);
22
23        X509_NAME *X509_get_issuer_name(const X509 *x);
24        int X509_set_issuer_name(X509 *x, const X509_NAME *name);
25        unsigned long X509_issuer_name_hash(X509 *x);
26
27        X509_NAME *X509_REQ_get_subject_name(const X509_REQ *req);
28        int X509_REQ_set_subject_name(X509_REQ *req, const X509_NAME *name);
29
30        X509_NAME *X509_CRL_get_issuer(const X509_CRL *crl);
31        int X509_CRL_set_issuer_name(X509_CRL *x, const X509_NAME *name);
32
33       The following macro has been deprecated since OpenSSL 3.0, and can be
34       hidden entirely by defining OPENSSL_API_COMPAT with a suitable version
35       value, see openssl_user_macros(7):
36
37        #define X509_NAME_hash(x) X509_NAME_hash_ex(x, NULL, NULL, NULL)
38

DESCRIPTION

40       X509_NAME_hash_ex() returns a hash value of name x or 0 on failure,
41       using any given library context libctx and property query propq.  The
42       ok result argument may be NULL or else is used to return 1 for success
43       and 0 for failure.  Failure may happen on malloc error or if no SHA1
44       implementation is available.
45
46       X509_NAME_hash() returns a hash value of name x or 0 on failure, using
47       the default library context and default property query.
48
49       X509_get_subject_name() returns the subject name of certificate x. The
50       returned value is an internal pointer which MUST NOT be freed.
51
52       X509_set_subject_name() sets the issuer name of certificate x to name.
53       The name parameter is copied internally and should be freed up when it
54       is no longer needed.
55
56       X509_subject_name_hash() returns a hash value of the subject name of
57       certificate x.
58
59       X509_get_issuer_name(), X509_set_issuer_name(), and
60       X509_issuer_name_hash() are identical to X509_get_subject_name(),
61       X509_set_subject_name(), and X509_subject_name_hash() except they
62       relate to the issuer name of x.
63
64       Similarly X509_REQ_get_subject_name(), X509_REQ_set_subject_name(),
65       X509_CRL_get_issuer() and X509_CRL_set_issuer_name() get or set the
66       subject or issuer names of certificate requests of CRLs respectively.
67

RETURN VALUES

69       X509_get_subject_name(), X509_get_issuer_name(),
70       X509_REQ_get_subject_name() and X509_CRL_get_issuer() return an
71       X509_NAME pointer.
72
73       X509_NAME_hash_ex(), X509_NAME_hash(), X509_subject_name_hash() and
74       X509_issuer_name_hash() return the first four bytes of the SHA1 hash
75       value, converted to unsigned long in little endian order, or 0 on
76       failure.
77
78       X509_set_subject_name(), X509_set_issuer_name(),
79       X509_REQ_set_subject_name() and X509_CRL_set_issuer_name() return 1 for
80       success and 0 for failure.
81

BUGS

83       In case X509_NAME_hash(), X509_subject_name_hash(), or
84       X509_issuer_name_hash() returns 0 it remains unclear if this is the
85       real hash value or due to failure.  Better use X509_NAME_hash_ex()
86       instead.
87

SEE ALSO

89       d2i_X509(3), ERR_get_error(3), d2i_X509(3) X509_CRL_get0_by_serial(3),
90       X509_get0_signature(3), X509_get_ext_d2i(3),
91       X509_get_extension_flags(3), X509_get_pubkey(3),
92       X509_NAME_add_entry_by_txt(3), X509_NAME_ENTRY_get_object(3),
93       X509_NAME_get_index_by_NID(3), X509_NAME_print_ex(3), X509_new(3),
94       X509_sign(3), X509V3_get_d2i(3), X509_verify_cert(3)
95

HISTORY

97       X509_REQ_get_subject_name() is a function in OpenSSL 1.1.0 and a macro
98       in earlier versions.
99
100       X509_CRL_get_issuer() is a function in OpenSSL 1.1.0. It was previously
101       added in OpenSSL 1.0.0 as a macro.
102
103       X509_NAME_hash() was turned into a macro and deprecated in OpenSSL 3.0.
104

106       Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
107
108       Licensed under the Apache License 2.0 (the "License").  You may not use
109       this file except in compliance with the License.  You can obtain a copy
110       in the file LICENSE in the source distribution or at
111       <https://www.openssl.org/source/license.html>.
112
113
114
1153.0.9                             2023-07-27      X509_GET_SUBJECT_NAME(3ossl)
Impressum