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Java Signature getInstance() method with Examples
A signature object that can implement the required signature algorithm can be obtained using the method getInstance() in the class java.security.Signature.
Let us now see an example −
Example
import java.security.*;
import java.util.*;
public class Main {
public static void main(String[] argv) {
try {
Signature signature = Signature.getInstance("SHA256withRSA");
String str = signature.toString();
System.out.println(str);
} catch (NoSuchAlgorithmException e) {
System.out.println("Error!!! NoSuchAlgorithmException");
}
}
}Output
Signature object: SHA256withRSA<not initialized>
Let us now see another example −
Example
import java.security.*;
import java.util.*;
public class Main {
public static void main(String[] argv) {
try {
Signature signature = Signature.getInstance("SHA1WithRSA");
String str = signature.toString();
System.out.println(str);
} catch (NoSuchAlgorithmException e) {
System.out.println("Error!!! NoSuchAlgorithmException");
}
}
}Output
Signature object: SHA1WithRSA<not initialized>
Updated on: 23-Sep-2019
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