package org.nl;

import java.security.*;
import java.util.Base64;

/**
 * @Author: lyd
 * @Date: 2025/8/13
 */
public class RSAKeyGenerator {
    public static void main(String[] args) {
        try {
            KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
            keyGen.initialize(2048); // 推荐 2048 位密钥，安全级别高
            KeyPair pair = keyGen.generateKeyPair();
            PrivateKey privateKey = pair.getPrivate();
            PublicKey publicKey = pair.getPublic();

            // Base64 编码，便于存储和传输
            String privateKeyBase64 = Base64.getEncoder().encodeToString(privateKey.getEncoded());
            String publicKeyBase64 = Base64.getEncoder().encodeToString(publicKey.getEncoded());

            System.out.println("Private Key (Base64): " + privateKeyBase64);
            System.out.println("Public Key (Base64): " + publicKeyBase64);
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
    }
}