(Go) DKIM Signature using Windows Current User Certificate Store

This is a Windows-specific example to load a certificate from the Current User (registry-based) certificate store, and then use the certificate's associated private key for a DKIM signature.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    cert := Cert_Ref.html">chilkat.NewCert()

    // The LoadByCommonName method searches the Windows Local Machine and Current User 
    // registry-based certificate stores for a certificate having the common name specified. 
    // If found, the certificate is loaded and ready for use.
    success := cert.LoadByCommonName("My Certificate ABC")
    if success != true {
        fmt.Println(cert.LastErrorText())
        cert.DisposeCert()
        return
    }

    // The certificate must have an associated private key installed, and it must be a
    // private key that has been marked "exportable" when it was originally installed.
    if !cert.HasPrivateKey() {
        fmt.Println("This certificate does not have a private key available.")
        cert.DisposeCert()
        return
    }

    // privKey is a PrivateKey_Ref.html">PrivateKey

    privKey := cert.ExportPrivateKey()
    if cert.LastMethodSuccess() == false {
        fmt.Println(cert.LastErrorText())
        cert.DisposeCert()
        return
    }

    dkim := Dkim_Ref.html">chilkat.NewDkim()

    // Load the private key into the DKIM object:
    success = dkim.SetDkimPrivateKey(privKey)
    if success != true {
        fmt.Println(dkim.LastErrorText())
        cert.DisposeCert()
        dkim.DisposeDkim()
        return
    }

    // The private key has been loaded into the DKIM object.  See the other DKIM
    // examples for guidance on how to create a DKIM signature...

    privKey.DisposePrivateKey()

    cert.DisposeCert()
    dkim.DisposeDkim()