Java Security Certificate read certificate file
import java.io.FileInputStream; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; public class Main { public static void main(String args[]) throws Exception { CertificateFactory cf = CertificateFactory.getInstance("X.509"); Certificate c = cf.generateCertificate(new FileInputStream(args[0])); System.out.println(c);//from ww w. jav a 2s . c o m } }