上一节介绍了基于jsencrypt实现的密码加密解密登录功能，这次来介绍基于sm-crypto实现前后端登录密码加密，本次采用的是sm2进行的加密解密。
后端
首先从后端代码开始写起(因为公钥和私钥都是要从java代码中生成)：
首先需要引入sm-crypto的jar包，点击获取jar包，然后拷贝到下面的目录下
然后再pom.xml文件中引入依赖，然后刷新依赖
<!--sm2jar包依赖--><dependency><groupId>com.sm2</groupId><artifactId>sm2</artifactId><version>1.0</version><scope>system</scope><systemPath>${basedir}/src/main/resources/lib/sm-crypto-0.3.2.jar</systemPath></dependency>
然后就是新建一个工具类
package com.ruoyi.common.utils.sm2Encrypt;import com.antherd.smcrypto.sm2.Keypair;
import com.antherd.smcrypto.sm2.Sm2;
import io.netty.util.internal.StringUtil;
import org.springframework.stereotype.Component;import java.util.ArrayList;@Component
public class SM2Encryptor {private static final SmKeyPair smKeyPair = new SmKeyPair();public static String privateKeys = "";private static String publicKeyStr = "";private static String privateKeyStr = "92b704fee9ac448ac27abfa537021ab42d0035151f01fdc03e49b0c2f5496148";/*** 加密，使用公钥** @param publicKey* @param originalText* @return*/public static String encryptText(String publicKey, String originalText) throws Exception {if (StringUtil.isNullOrEmpty(publicKey)) {throw new Exception("密钥不能为空...");}if (StringUtil.isNullOrEmpty(originalText)) {throw new Exception("明文不能为空...");}try {return Sm2.doEncrypt(originalText, publicKey);//HexUtil.encodeHexStr(cipherText); // 加密结果} catch (Exception e) {throw new Exception("加密错误：密钥不正确...");}}public static String getPublicKey() {return publicKeyStr;}public static String getPrivateKey() {return privateKeyStr;}public static SmKeyPair smKeyPair() {return smKeyPair;}/*** 解密，使用私钥** @param privateKey* @param cipherText* @return*/public static String decryptText(String privateKey, String cipherText) throws Exception {if (StringUtil.isNullOrEmpty(privateKey)) {throw new Exception("密钥不能为空...");}if (StringUtil.isNullOrEmpty(cipherText)) {throw new Exception("明文不能为空...");}try {String s = Sm2.doDecrypt(cipherText, privateKey);System.out.println(s);return Sm2.doDecrypt(cipherText, privateKey); // new String(sm2.decrypt(sourceData,prvKey)); // 解密结果} catch (Exception e) {throw new Exception("解密错误：密钥不正确...");}}/*** 获取sm2密钥对，** @return 返回String[]；第0个为公钥，第1个为私钥* @throws Exception*/public static String[] generateKeyPair() throws Exception {try {Keypair keypair = Sm2.generateKeyPairHex();String[] result = new String[2];if (keypair != null) {result[0] = keypair.getPublicKey(); //公钥smKeyPair.setPublicKey(keypair.getPublicKey());publicKeyStr = keypair.getPublicKey();result[1] = keypair.getPrivateKey(); // 私钥smKeyPair.setPrivateKey(keypair.getPrivateKey());privateKeyStr = keypair.getPrivateKey();}return result;} catch (Exception e) {throw new Exception("生成密钥对失败...");}}public static void main(String[] args) throws Exception {
// 生成一对 公钥与私钥String[] keys = generateKeyPair();
// 公钥String publicKey = keys[0];
// String publicKey = publicKeyStr;System.out.println("公钥" + publicKey);
// 私钥String privateKey = privateKeyStr;System.out.println("私钥" + privateKey);// String str = "测试使用SM2加密、解密";String str = "166ed3fc69afcfee4f1ba2034c36dac93d86dcad176219407776100130a506d9";try {//加密字符串String encryptText = SM2Encryptor.encryptText(publicKey, str);System.out.println(encryptText);} catch (Exception e) {}//解密字符串String decryptText = "null";try {decryptText = SM2Encryptor.decryptText("", str);System.out.println("成功解密后为："+decryptText);} catch (Exception e) {System.out.println("失败");}}public static void main11(String[] args) throws Exception {ArrayList<String> strings = new ArrayList<>();String str = 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split = str.split(",");//私钥String privateKey = privateKeyStr;for (String s : split) {//解密字符串String decryptText = SM2Encryptor.decryptText(privateKey, s);System.out.println("解密后密码："+decryptText);}}/*** 获取sm2密钥对，** @return 返回String[]；第0个为公钥，第1个为私钥* @throws Exception*/
// @Beanpublic void startGenerateKeyPair() throws Exception {try {Keypair keypair = Sm2.generateKeyPairHex();String[] result = new String[2];if (keypair != null) {result[0] = keypair.getPublicKey(); //公钥smKeyPair.setPublicKey(keypair.getPublicKey());publicKeyStr = keypair.getPublicKey();result[1] = keypair.getPrivateKey(); // 私钥smKeyPair.setPrivateKey(keypair.getPrivateKey());privateKeyStr = keypair.getPrivateKey();}} catch (Exception e) {throw new Exception("生成密钥对失败...");}}/*** RSA密钥对对象*/public static class SmKeyPair {private String publicKey;private String privateKey;public SmKeyPair() {}public SmKeyPair(String publicKey, String privateKey) {this.publicKey = publicKey;this.privateKey = privateKey;}public String getPublicKey() {return publicKey;}public void setPublicKey(String publicKey) {this.publicKey = publicKey;}public String getPrivateKey() {return privateKey;}public void setPrivateKey(String privateKey) {this.privateKey = privateKey;}}}然后运行里面的main方法获取公钥和私钥，保存起来
然后再application.yml文件中加入一个配置：
#SM2解密私钥
SM_privateKey: 92b704fee9ac448ac27abfa537021ab42d0035151f01fdc03e49b0c2f5496148
最后在登录接口那里调用解密方法
/*** 登录方法* * @param loginBody 登录信息* @return 结果*/@PostMapping("/login")public AjaxResult login(@RequestBody LoginBody loginBody) throws Exception{AjaxResult ajax = AjaxResult.success();// 生成令牌String token = loginService.login(loginBody.getUsername(), SM2Encryptor.decryptText(SM_privateKey, loginBody.getPassword()), loginBody.getCode(),loginBody.getUuid());ajax.put(Constants.TOKEN, token);return ajax;}
到此后端的工作就做完了
前端
前段需要先
npm i sm-crypto
在需要生成的模块，如common模块下新建一个工具类
前端代码：
在utils下新建smcrypto.js，把公钥和私钥放进来
import { sm2 } from 'sm-crypto'const publicKey = "04b9fd451e0d0d5517069076edbc7dc83b3a885307bc8cf00185769f6818bcdf958f8dc4c8575f33dcfbe0bb18c4f651892a05a4fd923f01db2e3ad09fc4bf2878"
const privateKey = '92b704fee9ac448ac27abfa537021ab42d0035151f01fdc03e49b0c2f5496148'
const cipherMode=1// sm2公钥加密
export function smEncryptor(password) {password = sm2.doEncrypt(password, publicKey, cipherMode)return password
}// sm私钥解密
export function decrypt(txt) {return sm2.doDecrypt(txt, privateKey, cipherMode)
}然后在登录的地方进行加密：
const password = smEncryptor(userInfo.password)
最后就是测试效果
