利用RSA算法加解密学号，JAVA代码实现

好的，接下来是利用RSA算法加解密学号的JAVA代码实现。

请先确保你已经安装了Java环境，并且导入了Bouncy Castle加密库。如果还没有安装和导入，可以自行在网上搜索教程。

1. 加密学号

import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.interfaces.RSAPublicKey;

import javax.crypto.Cipher;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

public class RSAEncrypt {

    public static void main(String[] args) {
        try {
            String studentId = "1234567890"; // 待加密的学号
            byte[] plainText = studentId.getBytes();

            // 初始化加密环境
            Security.addProvider(new BouncyCastleProvider());
            KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "BC");
            kpg.initialize(4096, new SecureRandom());

            // 生成RSA密钥对
            KeyPair keyPair = kpg.generateKeyPair();
            RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();

            // 使用公钥加密
            Cipher cipher = Cipher.getInstance("RSA", "BC");
            cipher.init(Cipher.ENCRYPT_MODE, publicKey);
            byte[] cipherText = cipher.doFinal(plainText);

            System.out.println("Encrypted student id: " + new BigInteger(cipherText));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

2. 解密学号

import java.math.BigInteger;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.interfaces.RSAPrivateKey;

import javax.crypto.Cipher;

import org.bouncycastle.jce.provider.BouncyCastleProvider;

public class RSADecrypt {

    public static void main(String[] args) {
        try {
            BigInteger encryptedStudentId = new BigInteger("1234567890"); // 已加密的学号

            // 初始化解密环境
            Security.addProvider(new BouncyCastleProvider());
            KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA", "BC");
            kpg.initialize(4096, new SecureRandom());

            // 生成RSA密钥对
            KeyPair keyPair = kpg.generateKeyPair();
            PrivateKey privateKey = keyPair.getPrivate();

            // 使用私钥解密
            Cipher cipher = Cipher.getInstance("RSA", "BC");
            cipher.init(Cipher.DECRYPT_MODE, privateKey);
            byte[] plainText = cipher.doFinal(encryptedStudentId.toByteArray());

            System.out.println("Decrypted student id: " + new String(plainText));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

以上就是基于RSA算法加解密学号的JAVA代码实现，希望能对你有所帮助。