|
|
(JavaScript) Load Certificate from Smart Card by Key Usage
You may have a smartcard or USB token that contains only 2 certificates, one for signing, and one for authentication, and you wish to load the certificate for signing. This example demonstrates how to load the 1st certificate found on a smartcard that matches the intended key usage.
var success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
var cert = new CkCert();
// If you know the smart card PIN, set it prior to loading from the smartcard/USB token.
cert.SmartCardPin = "12345678";
// To load a certificate matching an intended key usage, specify the type of usage as shown below.
//
// The possible key usage keywords are:
//
// digitalsignature
// Use when the public key is used with a digital signature mechanism to support security services other than non-repudiation, certificate signing, or CRL signing.
// A digital signature is often used for entity authentication and data origin authentication with integrity.
// nonrepudiation
// When a digital certificate's key usage includes "nonrepudiation," it implies that the certificate and its associated private key can be used to
// create digital signatures that provide proof of the origin and integrity of the signed data, and the signer cannot later deny having signed the data.
// Other less common usages:
// certificatesigning
// keyencipherment
// dataencipherment
// crlsigning
// secureemail
// serverauthentication
// clientauthentication
// codesigning
// timestamping
success = cert.LoadFromSmartcard("keyusage=nonrepudiation");
if (success == false) {
console.log(cert.LastErrorText);
console.log("Certificate not loaded.");
return;
}
console.log("Found: " + cert.SubjectDN + " serial=" + cert.SerialNumber);
|
