Node.js

Generate a CSR containing an Extension Request

See more CSR Examples

Demonstrates how to generate a CSR containing a 1.2.840.113549.1.9.14 extensionRequest. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    //  This example will generate a secp256r1 ECDSA key for the CSR.
    var ecc = new chilkat.Ecc();
    var prng = new chilkat.Prng();
    var privKey = new chilkat.PrivateKey();

    success = ecc.GenKey("secp256r1",prng,privKey);
    if (success == false) {
        console.log("Failed to generate a new ECDSA private key.");
        return;
    }

    var csr = new chilkat.Csr();

    //  Add common CSR fields:
    csr.CommonName = "mysubdomain.mydomain.com";
    csr.Country = "GB";
    csr.State = "Yorks";
    csr.Locality = "York";
    csr.Company = "Internet Widgits Pty Ltd";
    csr.EmailAddress = "support@mydomain.com";

    //  Add the following 1.2.840.113549.1.9.14 extensionRequest
    //  Note: The easiest way to know the content and format of the XML to be added is to examine
    //  a pre-existing CSR with the same desired extensionRequest.  You can use Chilkat to
    //  get the extensionRequest from an existing CSR. 

    //  Here is a sample extension request:

    //  <?xml version="1.0" encoding="utf-8"?>
    //  <set>
    //     <sequence>
    //         <sequence>
    //             <oid>1.3.6.1.4.1.311.20.2</oid>
    //             <asnOctets>
    //                 <printable>ZATCA-Code-Signing</printable>
    //             </asnOctets>
    //         </sequence>
    //         <sequence>
    //             <oid>2.5.29.17</oid>
    //             <asnOctets>
    //                 <sequence>
    //                     <contextSpecific tag="4" constructed="1">
    //                         <sequence>
    //                             <set>
    //                                 <sequence>
    //                                     <oid>2.5.4.4</oid>
    //                                     <utf8>334623324234325</utf8>
    //                                 </sequence>
    //                             </set>
    //                             <set>
    //                                 <sequence>
    //                                     <oid>0.9.2342.19200300.100.1.1</oid>
    //                                     <utf8>310122393500003</utf8>
    //                                 </sequence>
    //                             </set>
    //                             <set>
    //                                 <sequence>
    //                                     <oid>2.5.4.12</oid>
    //                                     <utf8>0000</utf8>
    //                                 </sequence>
    //                             </set>
    //                             <set>
    //                                 <sequence>
    //                                     <oid>2.5.4.26</oid>
    //                                     <utf8>Sample E</utf8>
    //                                 </sequence>
    //                             </set>
    //                             <set>
    //                                 <sequence>
    //                                     <oid>2.5.4.15</oid>
    //                                     <utf8>Sample Business</utf8>
    //                                 </sequence>
    //                             </set>
    //                         </sequence>
    //                     </contextSpecific>
    //                 </sequence>
    //             </asnOctets>
    //         </sequence>
    //     </sequence>
    //  </set>

    //  Use this online tool to generate code from sample XML: 
    //  Generate Code to Create XML

    //  Here's the code to generate the above extension request.

    var xml = new chilkat.Xml();
    xml.Tag = "set";
    xml.UpdateChildContent("sequence|sequence|oid","1.3.6.1.4.1.311.20.2");
    xml.UpdateChildContent("sequence|sequence|asnOctets|printable","ZATCA-Code-Signing");
    xml.UpdateChildContent("sequence|sequence[1]|oid","2.5.29.17");
    xml.UpdateAttrAt("sequence|sequence[1]|asnOctets|sequence|contextSpecific",true,"tag","4");
    xml.UpdateAttrAt("sequence|sequence[1]|asnOctets|sequence|contextSpecific",true,"constructed","1");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|oid","2.5.4.4");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set|sequence|utf8","334623324234325");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|oid","0.9.2342.19200300.100.1.1");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[1]|sequence|utf8","310122393500003");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|oid","2.5.4.12");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[2]|sequence|utf8","0000");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|oid","2.5.4.26");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[3]|sequence|utf8","Sample E");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|oid","2.5.4.15");
    xml.UpdateChildContent("sequence|sequence[1]|asnOctets|sequence|contextSpecific|sequence|set[4]|sequence|utf8","Sample Business");

    //  Add the extension request to the CSR
    csr.SetExtensionRequest(xml);

    //  Generate the CSR with the extension request
    var csrPem = csr.GenCsrPem(privKey);
    if (csr.LastMethodSuccess == false) {
        console.log(csr.LastErrorText);
        return;
    }

    console.log(csrPem);

    //  Sample PEM output:

    //  -----BEGIN CERTIFICATE REQUEST-----
    //  MIICEjCCAbkCAQAwgZcxITAfBgNVBAMMGG15c3ViZG9tYWluLm15ZG9tYWluLmNv
    //  bTELMAkGA1UEBhMCR0IxDjAMBgNVBAgMBVlvcmtzMQ0wCwYDVQQHDARZb3JrMSEw
    //  HwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQxIzAhBgkqhkiG9w0BCQEW
    //  FHN1cHBvcnRAbXlkb21haW4uY29tMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE
    //  g8EVNSV0ttlM9kG2E+J3ZB9WEDYVf2QA/8idrPRUafia1CHjd1kslwZA8eP2bAcf
    //  2O493QAENqtW6DTHJbRz8KCBvjCBuwYJKoZIhvcNAQkOMYGtMIGqMCEGCSsGAQQB
    //  gjcUAgQUExJaQVRDQS1Db2RlLVNpZ25pbmcwgYQGA1UdEQR9MHukeTB3MRgwFgYD
    //  VQQEDA8zMzQ2MjMzMjQyMzQzMjUxHzAdBgoJkiaJk/IsZAEBDA8zMTAxMjIzOTM1
    //  MDAwMDMxDTALBgNVBAwMBDAwMDAxETAPBgNVBBoMCFNhbXBsZSBFMRgwFgYDVQQP
    //  DA9TYW1wbGUgQnVzaW5lc3MwCgYIKoZIzj0EAwIDRwAwRAIgF7D30eSBklfo+oel
    //  1B0z64eJDB9MB3rCoiFZlj+mz0YCIHYI87eyqdtw2LOcAoBRhyxlBT6i28+Z/8t9
    //  bYsMIYvp
    //  -----END CERTIFICATE REQUEST-----

}

chilkatExample();