Unicode C

Authenticode Sign using Smartcard or USB Token

See more Code Signing Examples

Demonstrates how to Authenticode sign an EXE or DLL using a smartcard or USB token, such as a Yubikey.

Note: Chilkat's code signing class was added in v9.5.0.97

Unicode C

#include <C_CkJsonObjectW.h>
#include <C_CkCertW.h>
#include <C_CkCodeSignW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkJsonObjectW json;
    HCkCertW cert;
    const wchar_t *exePath;
    HCkCodeSignW signer;

    success = FALSE;

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

    // First create the following JSON to specify that SHA256 is to be used,
    // and provide timestamp server information.

    // {
    //   "hashAlg": "sha256",
    //   "timestampToken": {
    //     "enabled": true,
    //     "tsaUrl": "http://timestamp.digicert.com",
    //     "requestTsaCert": true,
    //     "hashAlg": "sha256"
    //   }
    // }

    json = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateString(json,L"hashAlg",L"sha256");
    CkJsonObjectW_UpdateBool(json,L"timestampToken.enabled",TRUE);
    CkJsonObjectW_UpdateString(json,L"timestampToken.tsaUrl",L"http://timestamp.digicert.com");
    CkJsonObjectW_UpdateBool(json,L"timestampToken.requestTsaCert",TRUE);
    CkJsonObjectW_UpdateString(json,L"timestampToken.hashAlg",L"sha256");

    // The only difference in signing with a smartcard or USB token
    // is that the cert is loaded from a smartcard or USB token, instead of a PFX or from elsewhere
    // such as from the Windows certificate store.
    cert = CkCertW_Create();

    // Yubico YubiKey OTP+FIDO+CCID 0, default PIN = 123456
    CkCertW_putSmartCardPin(cert,L"123456");

    // Assuming you have the Yubikey inserted into the USB on the computer...
    // and there is only 1 signing certificate on the Yubikey, then just load from
    // the "smartcard".  (assuming you don't have additional smartcards or USB tokens plugged in)
    success = CkCertW_LoadFromSmartcard(cert,L"");
    if (success == FALSE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkJsonObjectW_Dispose(json);
        CkCertW_Dispose(cert);
        return;
    }

    // If the smartcard/token has several possible certificates that can be used for signing,
    // then see the online documentation for the LoadFromSmartcard method,
    // and also see the online documentation and examples for Chilkat Pkcs11 and ScMinidriver.
    // There are many possible ways to load a Chilkat certificate object with a cert (and associated private key)
    // from a variety of sources.  The only coding difference for any signing function in Chilkat,
    // whether it be a PDF, XmlDSig, CMS, etc. is in how the cert is loaded.

    // You can sign .exe or .dll files.
    exePath = L"C:/someOtherDir/HelloWorld.exe";

    signer = CkCodeSignW_Create();

    // If successful, the following call will apply the signature to the EXE (or DLL).
    success = CkCodeSignW_AddSignature(signer,exePath,cert,json);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCodeSignW_lastErrorText(signer));
        CkJsonObjectW_Dispose(json);
        CkCertW_Dispose(cert);
        CkCodeSignW_Dispose(signer);
        return;
    }

    wprintf(L"Successfully applied the Authenticode signature.\n");


    CkJsonObjectW_Dispose(json);
    CkCertW_Dispose(cert);
    CkCodeSignW_Dispose(signer);

    }