Java Signature getProvider() method with Examples

Namachila November 7, 2025

0 3 1 minute read

The getProvider() method of java.security.Signature class is used to return the provider of this signature object.

Syntax:

public final Provider getProvider()

Return Value: This method returns the provider of this signature object

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 the object of Signature
            Signature sr = Signature.getInstance("NONEwithDSA");
  
            // getting the provider
            // by using method getProvider()
            Provider provider = sr.getProvider();
  
            // printing the provider name
            System.out.println("Provider : " + provider);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}

Output:

Provider : SUN version 1.8

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 Signature
            Signature sr = Signature.getInstance("SHA1withDSA");
  
            // getting the provider
            // by using method getProvider()
            Provider provider = sr.getProvider();
  
            // printing the provider name
            System.out.println("Provider : " + provider);
        }
  
        catch (NoSuchAlgorithmException e) {
  
            System.out.println("Exception thrown : " + e);
        }
    }
}