Node.js

Examine SSL/TLS Server Certificate

See more Socket/SSL/TLS Examples

Demonstrates how an application can examine and check a server's SSL/TLS certificate. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var socket = new chilkat.Socket();

    //  Connect to a server.
    var useTls = true;
    var maxWaitMs = 2000;
    success = socket.Connect("www.intel.com",443,useTls,maxWaitMs);
    if (success == false) {
        console.log(socket.LastErrorText);
        return;
    }

    //  If we get here, the TLS connection ws made..
    //  In any SSL/TLS handshake, the server sends its certificate in a TLS handshake message.
    //  Chilkat will keep it cached within the object that made the connection.
    //  Get the server's cert and examine a few things.
    var cert = new chilkat.Cert();
    socket.GetServerCert(cert);

    console.log("Distinguished Name: " + cert.SubjectDN);
    console.log("Common Name: " + cert.SubjectCN);
    console.log("Issuer Distinguished Name: " + cert.IssuerDN);
    console.log("Issuer Common Name: " + cert.IssuerCN);

    console.log("Expired: " + cert.Expired);
    console.log("Revoked: " + cert.Revoked);
    console.log("Signature Verified: " + cert.SignatureVerified);
    console.log("Trusted Root: " + cert.TrustedRoot);

    //  Sample output:

    //  Distinguished Name: C=US, ST=California, O=Intel Corporation, CN=*.intel.com
    //  Common Name: *.intel.com
    //  Issuer Distinguished Name: C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Organization Validation Secure Server CA
    //  Issuer Common Name: Sectigo RSA Organization Validation Secure Server CA
    //  Expired: False
    //  Revoked: False
    //  Signature Verified: True
    //  Trusted Root: True

}

chilkatExample();