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(C) Use Installed Cert on Windows for TLS Client AuthenticationDemonstrates how to use a certificate that has already been installed on a Windows PC for TLS client authentication.
#include <C_CkHttp.h> #include <C_CkCert.h> void ChilkatSample(void) { HCkHttp http; BOOL success; HCkCert cert; BOOL success; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http = CkHttp_Create(); // On Windows, a pre-installed certificate can be loaded in a number of different ways. // This example loads by the common name: cert = CkCert_Create(); success = CkCert_LoadByCommonName(cert,"My ECA Medium Assurance Identity Certificate"); if (success != TRUE) { printf("%s\n",CkCert_lastErrorText(cert)); CkHttp_Dispose(http); CkCert_Dispose(cert); return; } // Make sure this certificate has a private key available. // It should be a private key such that when the certificate was installed, it was marked as "exportable" // so that authorized programs are able to access the private key. if (CkCert_HasPrivateKey(cert) != TRUE) { printf("A private key is needed for TLS client authentication.\n"); printf("This certificate has no private key.\n"); CkHttp_Dispose(http); CkCert_Dispose(cert); return; } // Set the certificate to be used for mutual TLS authentication // (i.e. sets the client-side certificate for two-way TLS authentication) success = CkHttp_SetSslClientCert(http,cert); if (success != TRUE) { printf("%s\n",CkHttp_lastErrorText(http)); CkHttp_Dispose(http); CkCert_Dispose(cert); return; } // At this point, the HTTP object instance is setup with the client-side cert, and any SSL/TLS // connection will automatically use it if the server demands a client-side cert. CkHttp_Dispose(http); CkCert_Dispose(cert); } |
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