KeyPairGenerator getAlgorithm() method in Java with Examples

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:

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// 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();
  
            // pritning the string algo
            System.out.println("Algorithm : " + algo);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:

Algorithm : RSA

Example 2:

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// 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();
  
            // pritning the string algo
            System.out.println("Algorithm : " + algo);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

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Output:

Algorithm : DiffieHellman


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