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Check if Certificate ExpiredHow to check to see if a digital certificate is expired. Downloads: MS Windows Visual C/C++ Libraries Linux/CentOS C/C++ Libraries MAC OS X C/C++ Libraries Solaris C/C++ Libraries C++ Builder Libraries FreeBSD C++ Libraries HP-UX C++ Libraries BlackBerry QNX C++ Libraries #include <C_CkCert.h> void ChilkatSample(void) { HCkCert cert; BOOL success; BOOL isExpired; cert = CkCert_Create(); // The LoadByCommonName method searches the registry-based // Windows Current User Certificate Store and Local Machine Certificate // Store for a certificate whose common name (CN) matches // the argument: success = CkCert_LoadByCommonName(cert,"Chilkat Software, Inc."); if (success == FALSE) { printf("Failed to find certificate!\n"); } else { // Display the certificate's distinguished name: printf("%s\n",CkCert_subjectDN(cert)); isExpired = CkCert_getExpired(cert); if (isExpired == TRUE) { printf("Certificate is expired.\n"); } else { printf("Certificate is NOT expired.\n"); } } // Alternatively, load a Certificate from a .cer file. // (Certs may also be loaded from other types of files, such as PEM, DER, PFX, etc.) success = CkCert_LoadFromFile(cert,"myCert.cer"); if (success == FALSE) { printf("Failed to load certificate!\n"); } else { // Display the certificate's distinguished name: printf("%s\n",CkCert_subjectDN(cert)); isExpired = CkCert_getExpired(cert); if (isExpired == TRUE) { printf("Certificate is expired.\n"); } else { printf("Certificate is NOT expired.\n"); } } // The Chilkat Certificate, Certificate Store, Private Key, // Public Key, and Key Container classes / objects are freeware. // They are used by and included with the Chilkat Email, // Crypt, S/MIME, and other commercial Chilkat components. CkCert_Dispose(cert); } |
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