RSA .NET加密Java解密

import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import javax.crypto.Cipher;

public class RSA {
  public static void main(String[] args) throws Exception {
    // 生成RSA密钥对
    KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");
    kpg.initialize(2048);
    KeyPair kp = kpg.genKeyPair();
    PrivateKey privateKey = kp.getPrivate();
    PublicKey publicKey = kp.getPublic();

    // 使用RSA密钥对进行加密和解密
    String plainText = "Hello, World!";
    byte[] cipherText = encrypt(publicKey, plainText);
    String decryptedText = decrypt(privateKey, cipherText);
    System.out.println(decryptedText);
  }

  public static byte[] encrypt(PublicKey publicKey, String plainText) throws Exception {
    Cipher cipher = Cipher.getInstance("RSA");
    cipher.init(Cipher.ENCRYPT_MODE, publicKey);
    return cipher.doFinal(plainText.getBytes());
  }

  public static String decrypt(PrivateKey privateKey, byte[] cipherText) throws Exception {
    Cipher cipher = Cipher.getInstance("RSA");
    cipher.init(Cipher.DECRYPT_MODE, privateKey);
    return new String(cipher.doFinal(cipherText));
  }
}