Java最快的哈希函数

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class HashFunction {
    public static void main(String[] args) {
        String input = "Hello, World!";
        byte[] hash = calculateHash(input);
        System.out.println("Hash of input: " + bytesToHex(hash));
    }

    public static byte[] calculateHash(String input) {
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-256");
            byte[] hash = digest.digest(input.getBytes("UTF-8"));
            return hash;
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static String bytesToHex(byte[] bytes) {
        StringBuilder hexString = new StringBuilder();
        for (byte b : bytes) {
            int byteValue = b & 0xFF;
            hexString.append(Integer.toHexString(byteValue).toUpperCase());
        }
        return hexString.toString();
    }
}