NAME

       OCSP_response_status, OCSP_response_get1_basic, OCSP_response_create, OCSP_RESPONSE_free,
       OCSP_RESPID_set_by_name, OCSP_RESPID_set_by_key, OCSP_RESPID_match, OCSP_basic_sign,
       OCSP_basic_sign_ctx - OCSP response functions

SYNOPSIS

        #include <openssl/ocsp.h>

        int OCSP_response_status(OCSP_RESPONSE *resp);
        OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp);
        OCSP_RESPONSE *OCSP_response_create(int status, OCSP_BASICRESP *bs);
        void OCSP_RESPONSE_free(OCSP_RESPONSE *resp);

        int OCSP_RESPID_set_by_name(OCSP_RESPID *respid, X509 *cert);
        int OCSP_RESPID_set_by_key(OCSP_RESPID *respid, X509 *cert);
        int OCSP_RESPID_match(OCSP_RESPID *respid, X509 *cert);

        int OCSP_basic_sign(OCSP_BASICRESP *brsp, X509 *signer, EVP_PKEY *key,
                            const EVP_MD *dgst, STACK_OF(X509) *certs,
                            unsigned long flags);
        int OCSP_basic_sign_ctx(OCSP_BASICRESP *brsp, X509 *signer, EVP_MD_CTX *ctx,
                                STACK_OF(X509) *certs, unsigned long flags);

DESCRIPTION

       OCSP_response_status() returns the OCSP response status of resp. It returns one of the
       values: OCSP_RESPONSE_STATUS_SUCCESSFUL, OCSP_RESPONSE_STATUS_MALFORMEDREQUEST,
       OCSP_RESPONSE_STATUS_INTERNALERROR, OCSP_RESPONSE_STATUS_TRYLATER
       OCSP_RESPONSE_STATUS_SIGREQUIRED, or OCSP_RESPONSE_STATUS_UNAUTHORIZED.

       OCSP_response_get1_basic() decodes and returns the OCSP_BASICRESP structure contained in
       resp.

       OCSP_response_create() creates and returns an OCSP_RESPONSE structure for status and
       optionally including basic response bs.

       OCSP_RESPONSE_free() frees up OCSP response resp.

       OCSP_RESPID_set_by_name() sets the name of the OCSP_RESPID to be the same as the subject
       name in the supplied X509 certificate cert for the OCSP responder.

       OCSP_RESPID_set_by_key() sets the key of the OCSP_RESPID to be the same as the key in the
       supplied X509 certificate cert for the OCSP responder. The key is stored as a SHA1 hash.

       Note that an OCSP_RESPID can only have one of the name, or the key set. Calling
       OCSP_RESPID_set_by_name() or OCSP_RESPID_set_by_key() will clear any existing setting.

       OCSP_RESPID_match() tests whether the OCSP_RESPID given in respid matches with the X509
       certificate cert.

       OCSP_basic_sign() signs OCSP response brsp using certificate signer, private key key,
       digest dgst and additional certificates certs. If the flags option OCSP_NOCERTS is set
       then no certificates will be included in the request. If the flags option OCSP_RESPID_KEY
       is set then the responder is identified by key ID rather than by name.
       OCSP_basic_sign_ctx() also signs OCSP response brsp but uses the parameters contained in
       digest context ctx.

RETURN VALUES

       OCSP_RESPONSE_status() returns a status value.

       OCSP_response_get1_basic() returns an OCSP_BASICRESP structure pointer or NULL if an error
       occurred.

       OCSP_response_create() returns an OCSP_RESPONSE structure pointer or NULL if an error
       occurred.

       OCSP_RESPONSE_free() does not return a value.

       OCSP_RESPID_set_by_name(), OCSP_RESPID_set_by_key(), OCSP_basic_sign(), and
       OCSP_basic_sign_ctx() return 1 on success or 0 on failure.

       OCSP_RESPID_match() returns 1 if the OCSP_RESPID and the X509 certificate match or 0
       otherwise.

NOTES

       OCSP_response_get1_basic() is only called if the status of a response is
       OCSP_RESPONSE_STATUS_SUCCESSFUL.

SEE ALSO

       crypto(7) OCSP_cert_to_id(3) OCSP_request_add1_nonce(3) OCSP_REQUEST_new(3)
       OCSP_resp_find_status(3) OCSP_sendreq_new(3) OCSP_RESPID_new(3) OCSP_RESPID_free(3)

HISTORY

       The OCSP_RESPID_set_by_name(), OCSP_RESPID_set_by_key() and OCSP_RESPID_match() functions
       were added in OpenSSL 1.1.0a.

       The OCSP_basic_sign_ctx() function was added in OpenSSL 1.1.1.

COPYRIGHT

       Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the OpenSSL license (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>.