Set an IMAP TLS Client Certificate from a PFX File

See more IMAP Examples

Demonstrates the Chilkat Imap.SetSslClientCertPfx method, which supplies a TLS client certificate and private key from a PKCS #12/PFX file. The first argument is the .pfx or .p12 file path and the second is its password. Call it before connecting.

Note: The certificate path is relative to the application's current working directory. Supply the path to your own certificate file.

Background: A PFX (PKCS #12) file bundles a certificate together with its private key in a single password-protected file — the format Windows and many corporate PKI tools export. This is the counterpart to SetSslClientCertPem: use it when your credentials are packaged as one .pfx rather than as separate PEM files.

Chilkat C Downloads

Download Chilkat for C

#include <C_CkImap.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkImap imap;
    const char *pfxPassword;

    success = FALSE;

    //  Demonstrates the Imap.SetSslClientCertPfx method, which supplies a TLS client certificate
    //  and private key from a PKCS #12/PFX file.  The 1st argument is the .pfx/.p12 file path and
    //  the 2nd is its password.  It must be called before connecting.

    imap = CkImap_Create();

    CkImap_putSsl(imap,TRUE);
    CkImap_putPort(imap,993);

    //  The PFX password is not hard-coded in source.  Insert code here to obtain it from an
    //  interactive prompt, environment variable, or a secrets vault.

    //  Provide the PFX client certificate BEFORE connecting.
    success = CkImap_SetSslClientCertPfx(imap,"qa_data/client.pfx",pfxPassword);
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    success = CkImap_Connect(imap,"imap.example.com");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    success = CkImap_Login(imap,"user@example.com","myPassword");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    success = CkImap_Disconnect(imap);
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }



    CkImap_Dispose(imap);

    }