How can I create a .jks file using a Certificate from a smart Card?

Question

I am using Aladdin etoken and am able to read the certificate from it. Now I have to create a .jks with the Certificate. How do I export the Certificate from the smart card and create a .jks file? Thanks.

Answer 1

Please try this following code. Here, I am creating a keystore for JKS and make entry for my certificate under a preferable alias. Finally write the file (example: demo.jks)

X509Certificate x509Certificate = Util.getX509Cert(x509FileLocation); 
KeyStore store = KeyStore.getInstance("JKS");
store.load(null, null);
store.setCertificateEntry("alias", x509Certificate);
FileOutputStream fileOutputStream = new FileOutputStream(jksFileLocation);
store.store(fileOutputStream, "123456".toCharArray());

Hopefully it will work.