1=pod
2
3=head1 NAME
4
5OCSP_cert_to_id, OCSP_cert_id_new, OCSP_CERTID_free, OCSP_id_issuer_cmp,
6OCSP_id_cmp, OCSP_id_get0_info - OCSP certificate ID utility functions
7
8=head1 SYNOPSIS
9
10 #include <openssl/ocsp.h>
11
12 OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst,
13                              X509 *subject, X509 *issuer);
14
15 OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
16                               X509_NAME *issuerName,
17                               ASN1_BIT_STRING *issuerKey,
18                               ASN1_INTEGER *serialNumber);
19
20 void OCSP_CERTID_free(OCSP_CERTID *id);
21
22 int OCSP_id_issuer_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b);
23 int OCSP_id_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b);
24
25 int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
26                       ASN1_OCTET_STRING **pikeyHash,
27                       ASN1_INTEGER **pserial, OCSP_CERTID *cid);
28
29
30=head1 DESCRIPTION
31
32OCSP_cert_to_id() creates and returns a new B<OCSP_CERTID> structure using
33message digest B<dgst> for certificate B<subject> with issuer B<issuer>. If
34B<dgst> is B<NULL> then SHA1 is used.
35
36OCSP_cert_id_new() creates and returns a new B<OCSP_CERTID> using B<dgst> and
37issuer name B<issuerName>, issuer key hash B<issuerKey> and serial number
38B<serialNumber>.
39
40OCSP_CERTID_free() frees up B<id>.
41
42OCSP_id_cmp() compares B<OCSP_CERTID> B<a> and B<b>.
43
44OCSP_id_issuer_cmp() compares only the issuer name of B<OCSP_CERTID> B<a> and B<b>.
45
46OCSP_id_get0_info() returns the issuer name hash, hash OID, issuer key hash and
47serial number contained in B<cid>. If any of the values are not required the
48corresponding parameter can be set to B<NULL>.
49
50=head1 RETURN VALUES
51
52OCSP_cert_to_id() and OCSP_cert_id_new() return either a pointer to a valid
53B<OCSP_CERTID> structure or B<NULL> if an error occurred.
54
55OCSP_id_cmp() and OCSP_id_issuer_cmp() returns zero for a match and nonzero
56otherwise.
57
58OCSP_CERTID_free() does not return a value.
59
60OCSP_id_get0_info() returns 1 for success and 0 for failure.
61
62=head1 NOTES
63
64OCSP clients will typically only use OCSP_cert_to_id() or OCSP_cert_id_new():
65the other functions are used by responder applications.
66
67The values returned by OCSP_id_get0_info() are internal pointers and B<MUST
68NOT> be freed up by an application: they will be freed when the corresponding
69B<OCSP_CERTID> structure is freed.
70
71=head1 SEE ALSO
72
73L<crypto(7)>,
74L<OCSP_request_add1_nonce(3)>,
75L<OCSP_REQUEST_new(3)>,
76L<OCSP_resp_find_status(3)>,
77L<OCSP_response_status(3)>,
78L<OCSP_sendreq_new(3)>
79
80=head1 COPYRIGHT
81
82Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
83
84Licensed under the OpenSSL license (the "License").  You may not use
85this file except in compliance with the License.  You can obtain a copy
86in the file LICENSE in the source distribution or at
87L<https://www.openssl.org/source/license.html>.
88
89=cut
90