1安装依赖
npm install jsencrypt
2编写jsencrypt.js
import JSEncrypt from 'jsencrypt/bin/jsencrypt.min'
// 密钥对生成 http://web.chacuo.net/netrsakeypair
const publicKey = 'MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAKoR8mX0rGKLqzcWmOzbfj64K8ZIgOdH\n' +
'nzkXSOVOZbFu/TJhZ7rFAN+eaGkl3C4buccQd/EjEsj9ir7ijT7h96MCAwEAAQ=='
const privateKey = 'MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAqhHyZfSsYourNxaY\n' +
'7Nt+PrgrxkiA50efORdI5U5lsW79MmFnusUA355oaSXcLhu5xxB38SMSyP2KvuKN\n' +
'PuH3owIDAQABAkAfoiLyL+Z4lf4Myxk6xUDgLaWGximj20CUf+5BKKnlrK+Ed8gA\n' +
'kM0HqoTt2UZwA5E2MzS4EI2gjfQhz5X28uqxAiEA3wNFxfrCZlSZHb0gn2zDpWow\n' +
'cSxQAgiCstxGUoOqlW8CIQDDOerGKH5OmCJ4Z21v+F25WaHYPxCFMvwxpcw99Ecv\n' +
'DQIgIdhDTIqD2jfYjPTY8Jj3EDGPbH2HHuffvflECt3Ek60CIQCFRlCkHpi7hthh\n' +
'YhovyloRYsM+IS9h/0BzlEAuO0ktMQIgSPT3aFAgJYwKpqRYKlLDVcflZFCKY7u3\n' +
'UP8iWi1Qw0Y='
// 加密
export function encrypt(txt) {
const encryptor = new JSEncrypt()
encryptor.setPublicKey(publicKey) // 设置公钥
return encryptor.encrypt(txt) // 对数据进行加密
}
// 解密
export function decrypt(txt) {
const encryptor = new JSEncrypt()
encryptor.setPrivateKey(privateKey) // 设置私钥
return encryptor.decrypt(txt) // 对数据进行解密
}
将这个js文件,写在前端项目的utils/下
3 修改前端user.js
对登录密码进行rsa
加密。
1 导入jsencrypt.js工具类型
2 登录时,先对密码加密后再发请求
4 后端设置加密解密工具类
工具类utils
包下添加RsaUtils.java
,用于RSA
加密解密。
package com.qf.util;
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;
/**
* --- 天道酬勤 ---
*
* @author QiuShiju
* @date 2024/7/22
* @desc
*/
public class RsaUtils
{
// Rsa 私钥
public static String privateKey = "MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEAqhHyZfSsYourNxaY"
+ "7Nt+PrgrxkiA50efORdI5U5lsW79MmFnusUA355oaSXcLhu5xxB38SMSyP2KvuKN"
+ "PuH3owIDAQABAkAfoiLyL+Z4lf4Myxk6xUDgLaWGximj20CUf+5BKKnlrK+Ed8gA"
+ "kM0HqoTt2UZwA5E2MzS4EI2gjfQhz5X28uqxAiEA3wNFxfrCZlSZHb0gn2zDpWow"
+ "cSxQAgiCstxGUoOqlW8CIQDDOerGKH5OmCJ4Z21v+F25WaHYPxCFMvwxpcw99Ecv"
+ "DQIgIdhDTIqD2jfYjPTY8Jj3EDGPbH2HHuffvflECt3Ek60CIQCFRlCkHpi7hthh"
+ "YhovyloRYsM+IS9h/0BzlEAuO0ktMQIgSPT3aFAgJYwKpqRYKlLDVcflZFCKY7u3"
+ "UP8iWi1Qw0Y=";
/**
* 私钥解密
*
* @param privateKeyString text 私钥
* @param text 待解密的文本
* @return 解密后的文本
*/
public static String decryptByPrivateKey(String text) throws Exception
{
return decryptByPrivateKey(privateKey, text);
}
/**
* 公钥解密
*
* @param publicKeyString 公钥
* @param text 待解密的信息
* @return 解密后的文本
*/
public static String decryptByPublicKey(String publicKeyString, String text) throws Exception
{
X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(Base64.decodeBase64(publicKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, publicKey);
byte[] result = cipher.doFinal(Base64.decodeBase64(text));
return new String(result);
}
/**
* 私钥加密
*
* @param privateKeyString 私钥
* @param text 待加密的信息
* @return 加密后的文本
*/
public static String encryptByPrivateKey(String privateKeyString, String text) throws Exception
{
PKCS8EncodedKeySpec pkcs8EncodedKeySpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
byte[] result = cipher.doFinal(text.getBytes());
return Base64.encodeBase64String(result);
}
/**
* 私钥解密
*
* @param privateKeyString 私钥
* @param text 待解密的文本
* @return 解密后的文本
*/
public static String decryptByPrivateKey(String privateKeyString, String text) throws Exception
{
PKCS8EncodedKeySpec pkcs8EncodedKeySpec5 = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec5);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, privateKey);
byte[] result = cipher.doFinal(Base64.decodeBase64(text));
return new String(result);
}
/**
* 公钥加密
*
* @param publicKeyString 公钥
* @param text 待加密的文本
* @return 加密后的文本
*/
public static String encryptByPublicKey(String publicKeyString, String text) throws Exception
{
X509EncodedKeySpec x509EncodedKeySpec2 = new X509EncodedKeySpec(Base64.decodeBase64(publicKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec2);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
byte[] result = cipher.doFinal(text.getBytes());
return Base64.encodeBase64String(result);
}
/**
* 构建RSA密钥对
*
* @return 生成后的公私钥信息
*/
public static RsaKeyPair generateKeyPair() throws NoSuchAlgorithmException
{
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(1024);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
RSAPublicKey rsaPublicKey = (RSAPublicKey) keyPair.getPublic();
RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) keyPair.getPrivate();
String publicKeyString = Base64.encodeBase64String(rsaPublicKey.getEncoded());
String privateKeyString = Base64.encodeBase64String(rsaPrivateKey.getEncoded());
return new RsaKeyPair(publicKeyString, privateKeyString);
}
/**
* RSA密钥对对象
*/
public static class RsaKeyPair
{
private final String publicKey;
private final String privateKey;
public RsaKeyPair(String publicKey, String privateKey)
{
this.publicKey = publicKey;
this.privateKey = privateKey;
}
public String getPublicKey()
{
return publicKey;
}
public String getPrivateKey()
{
return privateKey;
}
}
}
5 后端修改登录方法,解密后再登录
修改登录方法SysUserController.java的login()方法
,对密码进行rsa
解密后再登录
6 启动测试验证
发的时候加密了
后端接收到,解密后再登录
Hutool网址:https://www.hutool.cn/
也可以使用Hutool中sm3加密工具类
对密码加密存储到数据库的流程:
1 添加用户时,在业务层对密码加密后,再插入数据库
2 用户登录时,在业务层使用同样的加密,加密后再查询
可以使用SM3,也可以使用MD5,实现功能即可
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