Java by API/java.security.cert/PKIXCertPathValidatorResult

PKIXCertPathValidatorResult: getPublicKey()

   <source lang="java">
 

import java.io.FileInputStream; import java.math.BigInteger; import java.security.KeyStore; import java.security.PublicKey; import java.security.cert.CertPath; import java.security.cert.CertPathValidator; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; import java.security.cert.PKIXCertPathValidatorResult; import java.security.cert.PKIXParameters; import java.security.cert.TrustAnchor; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.List; public class MainClass {

 public static void main(String args[]) throws Exception {
   CertificateFactory cf = CertificateFactory.getInstance("X.509");
   List mylist = new ArrayList();
   FileInputStream in = new FileInputStream(args[0]);
   Certificate c = cf.generateCertificate(in);
   mylist.add(c);
   CertPath cp = cf.generateCertPath(mylist);
   FileInputStream kin = new FileInputStream(args[0]);
   KeyStore ks = KeyStore.getInstance("JKS");
   ks.load(kin, args[1].toCharArray());
   PKIXParameters params = new PKIXParameters(ks);
   params.setRevocationEnabled(false);
   CertPathValidator cpv = CertPathValidator.getInstance("PKIX");
   PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv.validate(cp, params);
   PublicKey pbk = result.getPublicKey();
   byte[] pkenc = pbk.getEncoded();
   BigInteger pk = new BigInteger(pkenc);
   System.out.println(pk.toString(16));
   TrustAnchor anc = result.getTrustAnchor();
   X509Certificate xc = anc.getTrustedCert();
   System.out.println(xc.getSubjectDN());
   System.out.println(xc.getIssuerDN());
 }

}

 </source>
   
  
 
  

PKIXCertPathValidatorResult: getTrustAnchor()

   <source lang="java">
 

import java.io.FileInputStream; import java.math.BigInteger; import java.security.KeyStore; import java.security.PublicKey; import java.security.cert.CertPath; import java.security.cert.CertPathValidator; import java.security.cert.Certificate; import java.security.cert.CertificateFactory; import java.security.cert.PKIXCertPathValidatorResult; import java.security.cert.PKIXParameters; import java.security.cert.TrustAnchor; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.List; public class MainClass {

 public static void main(String args[]) throws Exception {
   CertificateFactory cf = CertificateFactory.getInstance("X.509");
   List mylist = new ArrayList();
   FileInputStream in = new FileInputStream(args[0]);
   Certificate c = cf.generateCertificate(in);
   mylist.add(c);
   CertPath cp = cf.generateCertPath(mylist);
   FileInputStream kin = new FileInputStream(args[0]);
   KeyStore ks = KeyStore.getInstance("JKS");
   ks.load(kin, args[1].toCharArray());
   PKIXParameters params = new PKIXParameters(ks);
   params.setRevocationEnabled(false);
   CertPathValidator cpv = CertPathValidator.getInstance("PKIX");
   PKIXCertPathValidatorResult result = (PKIXCertPathValidatorResult) cpv.validate(cp, params);
   PublicKey pbk = result.getPublicKey();
   byte[] pkenc = pbk.getEncoded();
   BigInteger pk = new BigInteger(pkenc);
   System.out.println(pk.toString(16));
   TrustAnchor anc = result.getTrustAnchor();
   X509Certificate xc = anc.getTrustedCert();
   System.out.println(xc.getSubjectDN());
   System.out.println(xc.getIssuerDN());
 }

}

 </source>