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KeyPairGenerator getAlgorithm() method in Java with Examples

  • Last Updated : 06 Jun, 2021
Geek Week

The getAlgorithm() method of java.security.KeyPairGenerator class is used to return the standard name of the algorithm for this key pair generator. See the KeyPairGenerator section in the Java Cryptography Architecture Standard Algorithm Name Documentation for information about standard algorithm names.
Syntax: 
 

public String getAlgorithm()

Return Value: This method returns the standard string name of the algorithm.
Below are the examples to illustrate the getAlgorithm() method
Example 1: 
 

Java




// Java program to demonstrate
// genKeyPair() method
 
import java.security.*;
import java.util.*;
 
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
        try {
 
            // creating the object of KeyPairGenerator
            KeyPairGenerator kpg = KeyPairGenerator
                                       .getInstance("RSA");
 
            // fetching the Algorithm
            // using getAlgorithm() method
            String algo = kpg.getAlgorithm();
 
            // printing the string algo
            System.out.println("Algorithm : " + algo);
        }
 
        catch (NoSuchAlgorithmException e) {
 
            System.out.println("Exception thrown : " + e);
        }
    }
}
Output: 
Algorithm : RSA

 

Example 2: 
 

Java




// Java program to demonstrate
// genKeyPair() method
 
import java.security.*;
import java.util.*;
 
public class GFG1 {
    public static void main(String[] argv) throws Exception
    {
        try {
 
            // creating the object of KeyPairGenerator
            KeyPairGenerator kpg = KeyPairGenerator
                                       .getInstance("DiffieHellman");
 
            // fetching the Algorithm
            // using getAlgorithm() method
            String algo = kpg.getAlgorithm();
 
            // printing the string algo
            System.out.println("Algorithm : " + algo);
        }
 
        catch (NoSuchAlgorithmException e) {
 
            System.out.println("Exception thrown : " + e);
        }
    }
}
Output: 
Algorithm : DiffieHellman

 

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