(Node.js) Find a Certificate by it's SHA-1 Thumbprint

See more Cert Store Examples

Note: This example requires Chilkat v10.1.2 or later.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var certStore = new chilkat.CertStore();

    var thumbprint = "12c1dd8015f3f03f7b1fa619dc24e2493ca8b4b2";

    // This opens the Current User certificate store on Windows,
    // On MacOS and iOS it opens the default Keychain.
    var bReadOnly = true;
    var success = certStore.OpenCurrentUserStore(bReadOnly);
    if (success == false) {
        console.log(certStore.LastErrorText);
        return;
    }

    // Find the certificate having a specific SHA1 thumbprint.
    var json = new chilkat.JsonObject();
    json.UpdateString("thumbprint",thumbprint);

    var cert = new chilkat.Cert();
    success = certStore.FindCert(json,cert);
    if (success == false) {
        console.log("Failed to find the certificate.");
        return;
    }

    console.log("Found: " + cert.SubjectCN);

    // -------------------------------------------------------------------------------------
    // Alternatively, one could load a certificate store object with certs from a PEM file,
    // and do the same thing..
    var certStorePem = new chilkat.CertStore();

    success = certStorePem.LoadPemFile("pemFiles/certificates.pem");
    if (success == false) {
        console.log(certStorePem.LastErrorText);
        return;
    }

    success = certStore.FindCert(json,cert);
    if (success == false) {
        console.log("Failed to find the certificate.");
        return;
    }

    console.log("Found: " + cert.SubjectCN);

}

chilkatExample();