CkJava Requires Chilkat v11.7.0+

Authenticode Sign a VBScript File (.vbs)

See more Code Signing Examples

Demonstrates how to Authenticode sign a VBScript file (.vbs). Signing VBScript files requires Chilkat v11.7.0 or later. The signature is appended to the file as a comment block. CkJava

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

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

    //  Signing a VBScript file (.vbs) requires Chilkat v11.7.0 or later.

    //  Load the code signing certificate.  It must have access to its private key.
    CkCert cert = new CkCert();
    success = cert.LoadPfxFile("C:/someDir/myCodeSigningCert.pfx","pfx password");
    if (success == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    //  Sign with SHA256, and ask a timestamp authority for a timestamp.  A timestamp lets the
    //  signature continue to validate after the code signing certificate has expired.
    //  
    //  {
    //    "hashAlg": "sha256",
    //    "timestampToken": {
    //      "enabled": true,
    //      "tsaUrl": "http://timestamp.digicert.com",
    //      "requestTsaCert": true,
    //      "hashAlg": "sha256"
    //    }
    //  }
    CkJsonObject json = new CkJsonObject();
    json.UpdateString("hashAlg","sha256");
    json.UpdateBool("timestampToken.enabled",true);
    json.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com");
    json.UpdateBool("timestampToken.requestTsaCert",true);
    json.UpdateString("timestampToken.hashAlg","sha256");

    String scriptPath = "C:/someDir/Backup.vbs";

    CkCodeSign signer = new CkCodeSign();

    //  The script is modified in place.  The signature is appended to the end of the file as a comment block:
    //  
    //    '' SIG '' Begin signature block
    //    '' SIG '' MIIoKgYJKoZIhvcNAQcCoIIoGzCCKBcCAQExDzANBglg
    //    '' SIG '' ...
    //    '' SIG '' End signature block
    //  
    //  If the script is already signed, the new signature block replaces the existing one.
    success = signer.AddSignature(scriptPath,cert,json);
    if (success == false) {
        System.out.println(signer.lastErrorText());
        return;
        }

    System.out.println("Signed the VBScript file.");

    //  Verify the signature that was just added.
    CkJsonObject sigInfo = new CkJsonObject();
    boolean valid = signer.VerifySignature(scriptPath,sigInfo);
    if (valid == false) {
        System.out.println(signer.lastErrorText());
        return;
        }

    System.out.println("The signature is valid.");

    //  Note: Other script types, such as JScript (.js), are not supported.
    //  AddSignature returns false for an unsupported file type and does not modify the file.
  }
}