Go

XAdES XML Signature using ARSS (Aruba Remote Signing Service)

See more Signing in the Cloud Examples

Demonstrates how to sign XML using ARSS (Aruba Remote Signing Service). Go

    success := false

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

    // --------------------------------------------------------------------------------
    // Also see Chilkat's Online WSDL Code Generator
    // to generate code and SOAP Request and Response XML for each operation in a WSDL.
    // --------------------------------------------------------------------------------

    // Create the XML to be signed.
    sbXml := chilkat.NewStringBuilder()

    bCrlf := true
    sbXml.AppendLine("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>",bCrlf)
    sbXml.AppendLine("<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\">",bCrlf)
    sbXml.AppendLine("    <SOAP-ENV:Header>",bCrlf)
    sbXml.AppendLine("        <wsse:Security xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" SOAP-ENV:mustUnderstand=\"1\"></wsse:Security>",bCrlf)
    sbXml.AppendLine("    </SOAP-ENV:Header>",bCrlf)
    sbXml.AppendLine("    <SOAP-ENV:Body xmlns:SOAP-SEC=\"http://schemas.xmlsoap.org/soap/security/2000-12\" SOAP-SEC:id=\"Body\">",bCrlf)
    sbXml.AppendLine("        <z:FooBar xmlns:z=\"http://example.com\" />",bCrlf)
    sbXml.AppendLine("    </SOAP-ENV:Body>",bCrlf)
    sbXml.AppendLine("</SOAP-ENV:Envelope>",bCrlf)

    // Specify the signing certificate and the ARSS credentials

    // Load the certificate used for signing.  The certificate's private key is stored on 
    // the Aruba.it server and the signing will happen remotely using the
    // ARSS (Aruba Remote Signing Service).
    // However, we still need the certificate locally (without private key).
    cert := chilkat.NewCert()
    success = cert.LoadFromFile("qa_data/certs/myCert.cer")
    if success == false {
        fmt.Println(cert.LastErrorText())
        sbXml.DisposeStringBuilder()
        cert.DisposeCert()
        return
    }

    // To sign using the Aruba Remote Signing Service, 
    // add the following lines of code to specify your authentication credentials,
    // and the ID of the certificate w/ private key on the server to be used.
    jsonArss := chilkat.NewJsonObject()

    // Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
    jsonArss.UpdateString("service","ARSS")
    // Specify the certificate ID, such as "AS0"
    // This certificate should match the certificate loaded in the above code.
    jsonArss.UpdateString("certID","YOUR_ARSS_CERT_ID")
    jsonArss.UpdateString("otpPwd","YOUR_OTP_PWD")

    // Specifies the OTP authentication environment.
    // 
    // Common values are:
    //   "demoprod" - Demo/Test environment
    //   "prod"     - Production environment
    // 
    // This value is sent to the ARSS service and determines how the OTP
    // authentication is validated.  The correct value depends on the type
    // of Aruba account and environment that has been provisioned.
    // 
    // If signing fails with an authentication-related error, verify that
    // the typeOtpAuth value matches the environment associated with the
    // ARSS account credentials being used.
    jsonArss.UpdateString("typeOtpAuth","demoprod")

    jsonArss.UpdateString("user","YOUR_ARSS_USERNAME")
    jsonArss.UpdateString("userPWD","YOUR_ARSS_PASSWORD")

    // The "endpoint" can be specified starting in Chilkat v11.5.0
    jsonArss.UpdateString("endpoint","https://app1.firma-remota.it/ArubaSignerService/webresources/signerservice")

    success = cert.SetCloudSigner(jsonArss)

    // Prepare for signing...
    gen := chilkat.NewXmlDSigGen()

    // Indicate where the Signature will be inserted.
    gen.SetSigLocation("SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security")

    // Add a reference to the fragment of the XML to be signed.

    // Note: "Body" refers to the XML element having an "id" equal to "Body", where "id" is case insensitive
    // and where any namespace might qualify the attribute.  In this case, the SOAP-ENV:Body fragment is signed
    // NOT because the tag = "Body", but because it has SOAP-SEC:id="Body"
    gen.AddSameDocRef("Body","sha1","EXCL_C14N","","")

    // (You can read about the SignedInfoPrefixList in the online reference documentation.  It's optional..)
    gen.SetSignedInfoPrefixList("wsse SOAP-ENV")

    gen.SetKeyInfoType("X509Data")
    gen.SetX509Type("IssuerSerial")

    bUsePrivateKey := true
    success = gen.SetX509Cert(cert,bUsePrivateKey)
    if success == false {
        fmt.Println(gen.LastErrorText())
        sbXml.DisposeStringBuilder()
        cert.DisposeCert()
        jsonArss.DisposeJsonObject()
        gen.DisposeXmlDSigGen()
        return
    }

    // Everything's specified.  Now create and insert the Signature
    // (The actual signing of the hash will happen on the Aruba server.)
    success = gen.CreateXmlDSigSb(sbXml)
    if success == false {
        fmt.Println(gen.LastErrorText())
        sbXml.DisposeStringBuilder()
        cert.DisposeCert()
        jsonArss.DisposeJsonObject()
        gen.DisposeXmlDSigGen()
        return
    }

    // Examine the XML with the digital signature inserted
    fmt.Println(*sbXml.GetAsString())

    sbXml.DisposeStringBuilder()
    cert.DisposeCert()
    jsonArss.DisposeJsonObject()
    gen.DisposeXmlDSigGen()