Provider getProperty() method in Java

A specific key can be used to search for the required property in the property list using the method getProperty() in the class java.security.Provider. This method requires a single parameter i.e. the key required to search for the property. It returns the property value for the key or returns null if the property value is not available.

A program that demonstrates this is given as follows −

Example

 Live Demo

import java.security.*;
import java.util.*;
public class Demo {
   public static void main(String[] argv) throws Exception {
      try {
         KeyPairGenerator kpGenerator = KeyPairGenerator.getInstance("DSA");
         Provider p = kpGenerator.getProvider();
         Set<Object> s = p.keySet();
         Iterator i = s.iterator();
         int x = 30;
         while (x > 0) {
            System.out.println(p.getProperty((String)i.next()));
            x--;
         }
      } catch (NoSuchAlgorithmException e) {
         System.out.println("Error!!! NoSuchAlgorithmException");
      }
   }
}

Output

SHA1withDSA
SHA1withDSA
SHA1withDSA
Software
sun.security.provider.JavaKeyStore$DualFormatJKS
SHA
sun.security.provider.SHA
sun.security.provider.JavaKeyStore$CaseExactJKS
Software
sun.security.provider.DSA$SHA256withDSA
SHA
SHA1withDSA
Software
Software
Software
sun.security.provider.DSA$RawDSA
X.509
java.security.interfaces.DSAPublicKey|java.security.interfaces.DSAPrivateKey
sun.security.provider.certpath.IndexedCollectionCertStore
sun.security.provider.Sun
SHA
SHA1withDSA
sun.security.provider.DomainKeyStore$DKS
Software
SHA256withDSA
SHA224withDSA
1024
1024
Software
sun.security.provider.DSAKeyFactory