JS -RSA 明文加密--用户密码加密

1 配置文件引入 加密包 package.json

"jsencrypt": "^3.0.0-rc.1",

2 加密公钥配置

import {
    
     JSEncrypt } from 'jsencrypt'
import request from "@/utils/request";

const RSA_PUBLIC_KEY = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJVol0cJoJKA36lRJoCOe7IZNhWm/BY+zOumtVQ/uhw4+oIJQqbJ+xuAYED5VjUWGsKjqJWKAS1QuBpQNij+nUXUV1v7AB9r0ihBTwvvvVJSLOfEau6eeKEqnAW6X4bZvaexFKTxlAb7IumnlBoo8uP5bCyRt93BuseuHynoYrmwIDAQAB";


//  加密
export function encryptedData(data) {
    
    
  // 新建JSEncrypt对象
  let encryptor = new JSEncrypt();
  // 设置公钥
  encryptor.setPublicKey(RSA_PUBLIC_KEY);
  // 加密数据
  return encryptor.encrypt(data);
};

3 前端请求 加密传输敏感数据

import {
    
     encryptedData } from "@/utils/auth";


    handleSubmit(e) {
    
    
      const {
    
     $store } = this;
      e.preventDefault();
      this.form.validateFields(async (err, values) => {
    
    
        if (!err) {
    
    
          await $store.dispatch({
    
    
            type: "login/sumbitLogin",
            params: {
    
    
              userInfo: encryptedData(values.userName),
              password: encryptedData(values.password)
            }
          });
          this.$router.push({
    
     path: "/home" });
        }
      });
    }

4 后端接口 解密敏感数据

  final String loginName = RSAUtil.decrypt(userInfo, RSAUtil.DEFAULT_PRIVATE_KEY);

后端解密工具包

 package c;


import org.apache.commons.codec.binary.Base64;

import javax.crypto.Cipher;
import java.security.*;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
import java.util.HashMap;
import java.util.Map;

/**
 * RSA 签名算法组件
 *
 *  
 */
public class RSAUtil {
    
    

    public static String DEFAULT_PRIVATE_KEY = "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";

    public static String DEFALUT_PUBLIC_KEY = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJVol0cJoJKA36lRJoCOe7IZNhWm/BY+zOumtVQ/uhw4+oIJQqbJ+xuAYED5VjUWGsKjqJWKAS1QuBpQNij+nUXUV1v7AB9r0ihBTwvvvVJSLOfEau6eeKEqnAW6X4bZvaexFKTxlAb7IumnlBoo8uP5bCyRt93BuseuHynoYrmwIDAQAB";


    /**
     * 随机生成密钥对
     * @throws NoSuchAlgorithmException
     */
    public static Map<Integer, String> genKeyPair() throws NoSuchAlgorithmException {
    
    
        // KeyPairGenerator类用于生成公钥和私钥对，基于RSA算法生成对象
        KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance("RSA");
        // 初始化密钥对生成器，密钥大小为96-1024位
        keyPairGen.initialize(1024,new SecureRandom());
        // 生成一个密钥对，保存在keyPair中
        KeyPair keyPair = keyPairGen.generateKeyPair();
        RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();   // 得到私钥
        RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();  // 得到公钥
        String publicKeyString = new String(Base64.encodeBase64(publicKey.getEncoded()));
        // 得到私钥字符串
        String privateKeyString = new String(Base64.encodeBase64((privateKey.getEncoded())));
        // 将公钥和私钥保存到Map
        Map<Integer, String> keyMap = new HashMap<>();  //用于封装随机产生的公钥与私钥
        keyMap.put(0,publicKeyString);  //0表示公钥
        keyMap.put(1,privateKeyString);  //1表示私钥
        return keyMap;
    }
    /**
     * RSA公钥加密
     *
     * @param str
     *            加密字符串
     * @param publicKey
     *            公钥
     * @return 密文
     * @throws Exception
     *             加密过程中的异常信息
     */
    public static String encrypt( String str, String publicKey ) throws Exception{
    
    
        //base64编码的公钥
        byte[] decoded = Base64.decodeBase64(publicKey);
        RSAPublicKey pubKey = (RSAPublicKey) KeyFactory.getInstance("RSA").generatePublic(new X509EncodedKeySpec(decoded));
        //RSA加密
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.ENCRYPT_MODE, pubKey);
        return Base64.encodeBase64String(cipher.doFinal(str.getBytes("UTF-8")));
    }

    /**
     * RSA私钥解密
     *
     * @param str
     *            加密字符串
     * @param privateKey
     *            私钥
     * @return 铭文
     * @throws Exception
     *             解密过程中的异常信息
     */
    public static String decrypt(String str, String privateKey) throws Exception {
    
    
        //64位解码加密后的字符串
        byte[] inputByte = Base64.decodeBase64(str.getBytes("UTF-8"));
        //base64编码的私钥
        byte[] decoded = Base64.decodeBase64(privateKey);
        RSAPrivateKey priKey = (RSAPrivateKey) KeyFactory.getInstance("RSA").generatePrivate(new PKCS8EncodedKeySpec(decoded));
        //RSA解密
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.DECRYPT_MODE, priKey);
        return new String(cipher.doFinal(inputByte));
    }
}