KeyFactory getProvider() method in Java with Examples

The getProvider() method of java.security.KeyFactory class is used to get the name of the Provider‘s object used by this KeyFactory instance.

Syntax:

public final Provider getProvider()

Parameters: This method does not takes any parameters.

Return Value: This method returns the name of the Provider‘s object used by this KeyFactory instance.

Below are the examples to illustrate the getProvider() method:

Example 1:

// Java program to demonstrate
// getProvider() method

import java.security.*;
import java.util.*;

public class GFG1 {
    public static void main(String[] argv)
    {

        try {
            // creating object of keyfactory
            KeyFactory keyFactory
                = KeyFactory.getInstance("DSA");

            // getting the Provider
            // of the KeyFactory keyfactory
            // by using method getProvider()
            Provider provider
                = keyFactory.getProvider();

            // printing the provider name
            System.out.println(
                "Provider name: "
                + provider.getName());
        }

        catch (NoSuchAlgorithmException e) {

            System.out.println(e);
        }
    }
}

Output:

Provider name: SUN

Example 2:

// Java program to demonstrate
// getProvider() method

import java.security.*;
import java.util.*;

public class GFG1 {
    public static void main(String[] argv)
    {

        try {

            // creating the object of KeyFactory
            KeyFactory sr
                = KeyFactory
                      .getInstance("DiffieHellman");

            // getting the Provider of the KeyFactory sr
            // by using method getProvider()
            Provider provider = sr.getProvider();

            // printing the provider name
            System.out.println(
                "Provider name: "
                + provider.getName());
        }

        catch (NoSuchAlgorithmException e) {
            System.out.println(e);
        }
    }
}

Output:

Provider name: SunJCE

Reference: https://docs.oracle.com/javase/9/docs/api/java/security/KeyFactory.html#getProvider–