1OCSP_RESP_FIND_STATUS(3) OpenSSL OCSP_RESP_FIND_STATUS(3)
2
6 OCSP_resp_get0_certs, OCSP_resp_get0_signer, OCSP_resp_get0_id,
7 OCSP_resp_get1_id, OCSP_resp_get0_produced_at,
8 OCSP_resp_get0_signature, OCSP_resp_get0_tbs_sigalg,
9 OCSP_resp_get0_respdata, OCSP_resp_find_status, OCSP_resp_count,
10 OCSP_resp_get0, OCSP_resp_find, OCSP_single_get0_status,
11 OCSP_check_validity, OCSP_basic_verify - OCSP response utility
12 functions
13
15 #include <openssl/ocsp.h>
16 int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
18 int *reason,
19 ASN1_GENERALIZEDTIME **revtime,
20 ASN1_GENERALIZEDTIME **thisupd,
21 ASN1_GENERALIZEDTIME **nextupd);
22 int OCSP_resp_count(OCSP_BASICRESP *bs);
24 OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx);
25 int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last);
26 int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
27 ASN1_GENERALIZEDTIME **revtime,
28 ASN1_GENERALIZEDTIME **thisupd,
29 ASN1_GENERALIZEDTIME **nextupd);
30 const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(
32 const OCSP_BASICRESP* single);
33 const ASN1_OCTET_STRING *OCSP_resp_get0_signature(const OCSP_BASICRESP *bs);
35 const X509_ALGOR *OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP *bs);
36 const OCSP_RESPDATA *OCSP_resp_get0_respdata(const OCSP_BASICRESP *bs);
37 const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs);
38 int OCSP_resp_get0_signer(OCSP_BASICRESP *bs, X509 **signer,
40 STACK_OF(X509) *extra_certs);
41 int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
43 const ASN1_OCTET_STRING **pid,
44 const X509_NAME **pname);
45 int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
46 ASN1_OCTET_STRING **pid,
47 X509_NAME **pname);
48 int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
50 ASN1_GENERALIZEDTIME *nextupd,
51 long sec, long maxsec);
52 int OCSP_basic_verify(OCSP_BASICRESP *bs, STACK_OF(X509) *certs,
54 X509_STORE *st, unsigned long flags);
55
57 OCSP_resp_find_status() searches bs for an OCSP response for id. If it
58 is successful the fields of the response are returned in *status,
59 *reason, *revtime, *thisupd and *nextupd. The *status value will be
60 one of V_OCSP_CERTSTATUS_GOOD, V_OCSP_CERTSTATUS_REVOKED or
61 V_OCSP_CERTSTATUS_UNKNOWN. The *reason and *revtime fields are only set
62 if the status is V_OCSP_CERTSTATUS_REVOKED. If set the *reason field
63 will be set to the revocation reason which will be one of
64 OCSP_REVOKED_STATUS_NOSTATUS, OCSP_REVOKED_STATUS_UNSPECIFIED,
65 OCSP_REVOKED_STATUS_KEYCOMPROMISE, OCSP_REVOKED_STATUS_CACOMPROMISE,
66 OCSP_REVOKED_STATUS_AFFILIATIONCHANGED, OCSP_REVOKED_STATUS_SUPERSEDED,
67 OCSP_REVOKED_STATUS_CESSATIONOFOPERATION,
68 OCSP_REVOKED_STATUS_CERTIFICATEHOLD or
69 OCSP_REVOKED_STATUS_REMOVEFROMCRL.
70 OCSP_resp_count() returns the number of OCSP_SINGLERESP structures in
72 bs.
73 OCSP_resp_get0() returns the OCSP_SINGLERESP structure in bs
75 corresponding to index idx. Where idx runs from 0 to
76 OCSP_resp_count(bs) - 1.
77 OCSP_resp_find() searches bs for id and returns the index of the first
79 matching entry after last or starting from the beginning if last is -1.
80 OCSP_single_get0_status() extracts the fields of single in *reason,
82 *revtime, *thisupd and *nextupd.
83 OCSP_resp_get0_produced_at() extracts the producedAt field from the
85 single response bs.
86 OCSP_resp_get0_signature() returns the signature from bs.
88 OCSP_resp_get0_tbs_sigalg() returns the signatureAlgorithm from bs.
90 OCSP_resp_get0_respdata() returns the tbsResponseData from bs.
92 OCSP_resp_get0_certs() returns any certificates included in bs.
94 OCSP_resp_get0_signer() attempts to retrieve the certificate that
96 directly signed bs. The OCSP protocol does not require that this
97 certificate is included in the certs field of the response, so
98 additional certificates can be supplied in extra_certs if the
99 certificates that may have signed the response are known via some out-
100 of-band mechanism.
101 OCSP_resp_get0_id() gets the responder id of bs. If the responder ID is
103 a name then <*pname> is set to the name and *pid is set to NULL. If the
104 responder ID is by key ID then *pid is set to the key ID and *pname is
105 set to NULL. OCSP_resp_get1_id() leaves ownership of *pid and *pname
106 with the caller, who is responsible for freeing them. Both functions
107 return 1 in case of success and 0 in case of failure. If
108 OCSP_resp_get1_id() returns 0, no freeing of the results is necessary.
109 OCSP_check_validity() checks the validity of thisupd and nextupd values
111 which will be typically obtained from OCSP_resp_find_status() or
112 OCSP_single_get0_status(). If sec is nonzero it indicates how many
113 seconds leeway should be allowed in the check. If maxsec is positive it
114 indicates the maximum age of thisupd in seconds.
115 OCSP_basic_verify() checks that the basic response message bs is
117 correctly signed and that the signer certificate can be validated. It
118 takes st as the trusted store and certs as a set of untrusted
119 intermediate certificates. The function first tries to find the signer
120 certificate of the response in <certs>. It also searches the
121 certificates the responder may have included in bs unless the flags
122 contain OCSP_NOINTERN. It fails if the signer certificate cannot be
123 found. Next, the function checks the signature of bs and fails on
124 error unless the flags contain OCSP_NOSIGS. Then the function already
125 returns success if the flags contain OCSP_NOVERIFY or if the signer
126 certificate was found in certs and the flags contain OCSP_TRUSTOTHER.
127 Otherwise the function continues by validating the signer certificate.
128 To this end, all certificates in cert and in bs are considered as
129 untrusted certificates for the construction of the validation path for
130 the signer certificate unless the OCSP_NOCHAIN flag is set. After
131 successful path validation the function returns success if the
132 OCSP_NOCHECKS flag is set. Otherwise it verifies that the signer
133 certificate meets the OCSP issuer criteria including potential
134 delegation. If this does not succeed and the flags do not contain
135 OCSP_NOEXPLICIT the function checks for explicit trust for OCSP signing
136 in the root CA certificate.
137
139 OCSP_resp_find_status() returns 1 if id is found in bs and 0 otherwise.
140 OCSP_resp_count() returns the total number of OCSP_SINGLERESP fields in
142 bs.
143 OCSP_resp_get0() returns a pointer to an OCSP_SINGLERESP structure or
145 NULL if idx is out of range.
146 OCSP_resp_find() returns the index of id in bs (which may be 0) or -1
148 if id was not found.
149 OCSP_single_get0_status() returns the status of single or -1 if an
151 error occurred.
152 OCSP_resp_get0_signer() returns 1 if the signing certificate was
154 located, or 0 on error.
155 OCSP_basic_verify() returns 1 on success, 0 on error, or -1 on fatal
157 error such as malloc failure.
158
160 Applications will typically call OCSP_resp_find_status() using the
161 certificate ID of interest and then check its validity using
162 OCSP_check_validity(). They can then take appropriate action based on
163 the status of the certificate.
164 An OCSP response for a certificate contains thisUpdate and nextUpdate
166 fields. Normally the current time should be between these two values.
167 To account for clock skew the maxsec field can be set to nonzero in
168 OCSP_check_validity(). Some responders do not set the nextUpdate field,
169 this would otherwise mean an ancient response would be considered
170 valid: the maxsec parameter to OCSP_check_validity() can be used to
171 limit the permitted age of responses.
172 The values written to *revtime, *thisupd and *nextupd by
174 OCSP_resp_find_status() and OCSP_single_get0_status() are internal
175 pointers which MUST NOT be freed up by the calling application. Any or
176 all of these parameters can be set to NULL if their value is not
177 required.
178
180 crypto(7), OCSP_cert_to_id(3), OCSP_request_add1_nonce(3),
181 OCSP_REQUEST_new(3), OCSP_response_status(3), OCSP_sendreq_new(3)
182
184 Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
185 Licensed under the OpenSSL license (the "License"). You may not use
187 this file except in compliance with the License. You can obtain a copy
188 in the file LICENSE in the source distribution or at
189 <https://www.openssl.org/source/license.html>.
1901.1.1i 2021-07-22 OCSP_RESP_FIND_STATUS(3)