Java 함수 라이브러리에서 일반적으로 사용되는 해시 알고리즘 도구는 무엇입니까?

import java.security.MessageDigest;

public class MD5Hashing {

    public static String getMD5(String input) throws Exception {
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] hash = md.digest(input.getBytes());
        StringBuilder sb = new StringBuilder();
        for (byte b : hash) {
            sb.append(String.format("%02x", b));
        }
        return sb.toString();
    }

    public static void main(String[] args) throws Exception {
        String input = "Hello World";
        String hashed = getMD5(input);
        System.out.println("MD5 hash of '" + input + "': " + hashed);
    }
}

import java.security.MessageDigest;

public class SHAHashing {

    public static String getSHA256(String input) throws Exception {
        MessageDigest md = MessageDigest.getInstance("SHA-256");
        byte[] hash = md.digest(input.getBytes());
        StringBuilder sb = new StringBuilder();
        for (byte b : hash) {
            sb.append(String.format("%02x", b));
        }
        return sb.toString();
    }

    public static void main(String[] args) throws Exception {
        String input = "Hello World";
        String hashed = getSHA256(input);
        System.out.println("SHA-256 hash of '" + input + "': " + hashed);
    }
}