x509ocsp.h

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/* 2020-2026 Quantum Resistant Cryptographic Solutions Corporation
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 * Written by: John G. Underhill
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#ifndef QSC_X509_OCSP_H
#define QSC_X509_OCSP_H
 
#include "qsccommon.h"
#include "x509cert.h"
#include "x509store.h"
#include "x509verify.h"
 
QSC_CPLUSPLUS_ENABLED_START


#define QSC_X509_OCSP_NONCE_MAX 32U

typedef enum qsc_x509_ocsp_cert_status_t
{
    QSC_X509_OCSP_STATUS_GOOD = 0,          
    QSC_X509_OCSP_STATUS_REVOKED = 1,       
    QSC_X509_OCSP_STATUS_UNKNOWN = 2        
} qsc_x509_ocsp_cert_status;

typedef struct qsc_x509_ocsp_response_t
{
    qsc_x509_ocsp_cert_status status;       
    qsc_asn1_time revocationtime;           
    bool hasnonce;                          
    uint8_t nonce[QSC_X509_OCSP_NONCE_MAX]; 
    size_t noncelen;                        
} qsc_x509_ocsp_response;

typedef bool (*qsc_x509_ocsp_fetch_callback)(const char* url, const uint8_t* request, size_t requestlen, uint8_t* response, size_t* responselen, void* context);

QSC_EXPORT_API bool qsc_x509_ocsp_parse_response(const uint8_t* der, size_t derlen, qsc_x509_ocsp_response* response);

QSC_EXPORT_API bool qsc_x509_ocsp_validate(const qsc_x509_certificate* certificate, const qsc_x509_certificate* issuer,
    const char* url, qsc_x509_ocsp_fetch_callback fetch, void* context, const qsc_asn1_time* now, qsc_x509_ocsp_response* response);

QSC_EXPORT_API bool qsc_x509_ocsp_verify_responder(const qsc_x509_certificate* responder, const qsc_x509_certificate* issuer, const qsc_x509_store* store, const qsc_asn1_time* now);
 
QSC_CPLUSPLUS_ENABLED_END
 
#endif