Coffee0127

            _____     ___      ___              _  _                         _
    o O O  |_   _|   | _ \    /   \            | \| |     ___               / |
   o         | |     |   /    | - |            | .' |    / _ \      _       | |
  TS__[O]   _|_|_    |_|_\    |_|_|            |_|\_|    \___/    _(_)_    _|_|_
 {======| _|"""""| _|"""""| _|"""""| _|"""""| _|"""""| _|"""""| _|"""""| _|"""""|
./o--000' "'-0-0-' "'-0-0-' "'-0-0-' "'-0-0-' "'-0-0-' "'-0-0-' "'-0-0-' "'-0-0-'
${AnsiColor.GREEN}:: Spring Boot ::${Ansi.DEFAULT} ${spring-boot.formatted-version}

Coffee0127

public class Demo {
    public static void main(String[] args) throws Exception {
        String plainText = "Hello World";
        String signature = sign(plainText, readPrivateKey(new File("/Users/bfan01/Desktop/private_key.pem")));
        System.out.println(signature);
        System.out.println(verify(plainText, signature, readPublicKey(new File("/Users/bfan01/Desktop/public.pem"))));
    }

    public static String sign(String plainText, PrivateKey privateKey) throws Exception {
        Signature privateSignature = Signature.getInstance("SHA256withRSA");