C

SSL Client Certificate

See more Socket/SSL/TLS Examples

Demonstrates how to connect to an SSL server using a client-side certificate, send a simple message, receive a simple response, and disconnect. C

#include <C_CkSocket.h>
#include <C_CkCertStore.h>
#include <C_CkJsonObject.h>
#include <C_CkCert.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkSocket socket;
    HCkCertStore certStore;
    HCkJsonObject jsonCN;
    HCkCert cert;
    BOOL ssl;
    int maxWaitMillisec;
    const char *sslServerHost;
    int sslServerPort;
    const char *receivedMsg;

    success = FALSE;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    socket = CkSocket_Create();

    // Create an instance of a certificate store object, load a PFX file,
    // locate the certificate we need, and use it for signing.
    // (a PFX file may contain more than one certificate.)
    certStore = CkCertStore_Create();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    success = CkCertStore_LoadPfxFile(certStore,"chilkat_secret.pfx","secret");
    if (success != TRUE) {
        printf("%s\n",CkCertStore_lastErrorText(certStore));
        CkSocket_Dispose(socket);
        CkCertStore_Dispose(certStore);
        return;
    }

    // Find the certificate by the subject common name:
    jsonCN = CkJsonObject_Create();
    CkJsonObject_UpdateString(jsonCN,"CN","cert common name");

    cert = CkCert_Create();
    success = CkCertStore_FindCert(certStore,jsonCN,cert);
    if (success == FALSE) {
        printf("%s\n",CkCertStore_lastErrorText(certStore));
        CkSocket_Dispose(socket);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        return;
    }

    success = CkSocket_SetSslClientCert(socket,cert);

    ssl = TRUE;
    maxWaitMillisec = 20000;

    // The SSL server hostname may be an IP address, a domain name,
    // or "localhost".  You'll need to change this:

    sslServerHost = "123.123.88.88";
    sslServerPort = 8123;

    // Connect to the SSL server:
    success = CkSocket_Connect(socket,sslServerHost,sslServerPort,ssl,maxWaitMillisec);
    if (success != TRUE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        return;
    }

    // Set maximum timeouts for reading an writing (in millisec)
    CkSocket_putMaxReadIdleMs(socket,20000);
    CkSocket_putMaxSendIdleMs(socket,20000);

    // Send a "Hello Server! -EOM-" message:
    success = CkSocket_SendString(socket,"Hello Server! -EOM-");
    if (success != TRUE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        return;
    }

    // The server (in this example) is going to send a "Hello Client! -EOM-" 
    // message.  Read it:
    receivedMsg = CkSocket_receiveUntilMatch(socket,"-EOM-");
    if (CkSocket_getLastMethodSuccess(socket) != TRUE) {
        printf("%s\n",CkSocket_lastErrorText(socket));
        CkSocket_Dispose(socket);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        return;
    }

    // Close the connection with the server
    // Wait a max of 20 seconds (20000 millsec)
    success = CkSocket_Close(socket,20000);

    printf("%s\n",receivedMsg);


    CkSocket_Dispose(socket);
    CkCertStore_Dispose(certStore);
    CkJsonObject_Dispose(jsonCN);
    CkCert_Dispose(cert);

    }