Add OCSP

include/gmssl/ocsp.h

@@ -0,0 +1,171 @@
+/*
+ *  Copyright 2014-2026 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License);
+ *  you may not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#ifndef GMSSL_OCSP_H
+#define GMSSL_OCSP_H
+
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <gmssl/x509.h>
+#include <gmssl/x509_ext.h>
+#include <gmssl/x509_alg.h>
+#include <gmssl/digest.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*
+CertID ::= SEQUENCE {
+	hashAlgorithm			AlgorithmIdentifier,
+	issuerNameHash			OCTET STRING,
+	issuerKeyHash			OCTET STRING,
+	serialNumber			CertificateSerialNumber }
+
+Request ::= SEQUENCE {
+	reqCert				CertID,
+	singleRequestExtensions		[0] EXPLICIT Extensions OPTIONAL }
+*/
+int ocsp_request_item_to_der(int hash_algor,
+	const uint8_t *issuer_name_hash, size_t issuer_name_hash_len,
+	const uint8_t *issuer_key_hash, size_t issuer_key_hash_len,
+	const uint8_t *serial_number, size_t serial_number_len,
+	const uint8_t *single_request_exts, size_t single_request_exts_len,
+	uint8_t **out, size_t *outlen);
+int ocsp_request_item_from_der(int *hash_algor,
+	const uint8_t **issuer_name_hash, size_t *issuer_name_hash_len,
+	const uint8_t **issuer_key_hash, size_t *issuer_key_hash_len,
+	const uint8_t **serial_number, size_t *serial_number_len,
+	const uint8_t **single_request_exts, size_t *single_request_exts_len,
+	const uint8_t **in, size_t *inlen);
+int ocsp_request_item_print(FILE *fp, int fmt, int ind, const char *label,
+	const uint8_t *d, size_t dlen);
+
+/*
+TBSRequest ::= SEQUENCE {
+	version				[0] EXPLICIT Version DEFAULT v1,
+	requestorName			[1] EXPLICIT GeneralName OPTIONAL,
+	requestList			SEQUENCE OF Request,
+	requestExtensions		[2] EXPLICIT Extensions OPTIONAL }
+
+Signature ::= SEQUENCE {
+	signatureAlgorithm		AlgorithmIdentifier,
+	signature			BIT STRING,
+	certs				[0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
+
+OCSPRequest ::= SEQUENCE {
+	tbsRequest			TBSRequest,
+	optionalSignature		[0] EXPLICIT Signature OPTIONAL }
+*/
+int ocsp_request_to_der(int version,
+	const uint8_t *requestor_name, size_t requestor_name_len,
+	const uint8_t *request_list, size_t request_list_len,
+	const uint8_t *request_exts, size_t request_exts_len,
+	const uint8_t *optional_signature, size_t optional_signature_len,
+	uint8_t **out, size_t *outlen);
+int ocsp_request_from_der(int *version,
+	const uint8_t **requestor_name, size_t *requestor_name_len,
+	const uint8_t **request_list, size_t *request_list_len,
+	const uint8_t **request_exts, size_t *request_exts_len,
+	const uint8_t **optional_signature, size_t *optional_signature_len,
+	const uint8_t **in, size_t *inlen);
+int ocsp_request_print(FILE *fp, int fmt, int ind, const char *label,
+	const uint8_t *d, size_t dlen);
+int ocsp_request_generate(uint8_t *req, size_t *reqlen, size_t maxlen,
+	const uint8_t *cert, size_t certlen,
+	const uint8_t *issuer_cert, size_t issuer_certlen,
+	const DIGEST *digest);
+
+/*
+
+OCSPResponse ::= SEQUENCE {
+	responseStatus			OCSPResponseStatus,
+	responseBytes			[0] EXPLICIT ResponseBytes OPTIONAL }
+
+OCSPResponseStatus ::= ENUMERATED {
+	successful			(0),
+	malformedRequest		(1),
+	internalError			(2),
+	tryLater			(3),
+	sigRequired			(5),
+	unauthorized			(6) }
+
+ResponseBytes ::= SEQUENCE {
+	responseType			OBJECT IDENTIFIER,
+	response			OCTET STRING }
+
+id-pkix-ocsp-basic OBJECT IDENTIFIER ::= { id-ad-ocsp 1 }
+
+BasicOCSPResponse ::= SEQUENCE {
+	tbsResponseData			ResponseData,
+	signatureAlgorithm		AlgorithmIdentifier,
+	signature			BIT STRING,
+	certs				[0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
+
+ResponseData ::= SEQUENCE {
+	version				[0] EXPLICIT Version DEFAULT v1,
+	responderID			ResponderID,
+	producedAt			GeneralizedTime,
+	responses			SEQUENCE OF SingleResponse,
+	responseExtensions		[1] EXPLICIT Extensions OPTIONAL }
+
+ResponderID ::= CHOICE {
+	byName				[1] Name,
+	byKey				[2] KeyHash }
+
+KeyHash ::= OCTET STRING
+
+SingleResponse ::= SEQUENCE {
+	certID				CertID,
+	certStatus			CertStatus,
+	thisUpdate			GeneralizedTime,
+	nextUpdate			[0] EXPLICIT GeneralizedTime OPTIONAL,
+	singleExtensions		[1] EXPLICIT Extensions OPTIONAL }
+
+CertStatus ::= CHOICE {
+	good				[0] IMPLICIT NULL,
+	revoked				[1] IMPLICIT RevokedInfo,
+	unknown				[2] IMPLICIT UnknownInfo }
+
+RevokedInfo ::= SEQUENCE {
+	revocationTime			GeneralizedTime,
+	revocationReason		[0] EXPLICIT CRLReason OPTIONAL }
+
+UnknownInfo ::= NULL
+
+ArchiveCutoff ::= GeneralizedTime
+
+AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER
+
+ServiceLocator ::= SEQUENCE {
+	issuer				Name,
+	locator				AuthorityInfoAccessSyntax OPTIONAL }
+
+CrlID ::= SEQUENCE {
+	crlUrl				[0] EXPLICIT IA5String OPTIONAL,
+	crlNum				[1] EXPLICIT INTEGER OPTIONAL,
+	crlTime				[2] EXPLICIT GeneralizedTime OPTIONAL }
+
+PreferredSignatureAlgorithms ::= SEQUENCE OF PreferredSignatureAlgorithm
+
+PreferredSignatureAlgorithm ::= SEQUENCE {
+	sigIdentifier			AlgorithmIdentifier,
+	certIdentifier			AlgorithmIdentifier OPTIONAL }
+*/
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif