1.0.5 新增RSA加密解密工具类

Author: WeiziPlus

springboot/demo-common/src/main/java/com/weiziplus/common/util/RsaUtils.java

@@ -0,0 +1,120 @@
+package com.weiziplus.common.util;
+
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+import javax.crypto.Cipher;
+import java.nio.charset.StandardCharsets;
+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.Base64;
+
+/**
+ * RSA加密解密
+ *
+ * @author wanglongwei
+ * @date 2020/06/03 18/09
+ */
+@Slf4j
+@Getter
+public class RsaUtils {
+
+    /**
+     * 公钥
+     */
+    private String publicKey;
+
+    /**
+     * 私钥
+     */
+    private String privateKey;
+
+    private RsaUtils(String publicKey, String privateKey) {
+        this.publicKey = publicKey;
+        this.privateKey = privateKey;
+    }
+
+    /**
+     * 标识RSA加密算法名字常量
+     */
+    private final static String RSA = "RSA";
+
+    /**
+     * 获取公钥私钥对
+     *
+     * @return
+     */
+    public static RsaUtils getKeyPair() {
+        // KeyPairGenerator类用于生成公钥和私钥对，基于RSA算法生成对象
+        KeyPairGenerator keyPairGen = null;
+        try {
+            keyPairGen = KeyPairGenerator.getInstance(RSA);
+        } catch (NoSuchAlgorithmException e) {
+            log.warn("RSA生成公钥私钥对出错，详情:" + e);
+            return null;
+        }
+        // 初始化密钥对生成器
+        keyPairGen.initialize(1024, new SecureRandom());
+        // 生成一个密钥对，保存在keyPair中
+        KeyPair keyPair = keyPairGen.generateKeyPair();
+        // 得到私钥
+        RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
+        // 得到公钥
+        RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
+        //得到公钥字符串
+        String publicKeyString = Base64.getEncoder().encodeToString(publicKey.getEncoded());
+        // 得到私钥字符串
+        String privateKeyString = Base64.getEncoder().encodeToString(privateKey.getEncoded());
+        return new RsaUtils(publicKeyString, privateKeyString);
+    }
+
+    /**
+     * 私钥解密
+     *
+     * @param privateKey
+     * @param content
+     * @return
+     */
+    public static String privateDecrypt(String privateKey, String content) {
+        try {
+            //64位解码加密后的字符串
+            byte[] inputByte = Base64.getDecoder().decode(content);
+            //base64编码的私钥
+            byte[] decoded = Base64.getDecoder().decode(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), StandardCharsets.UTF_8);
+        } catch (Exception e) {
+            log.warn("RSA私钥解密出错，详情:" + e);
+            return null;
+        }
+    }
+
+    /**
+     * 公钥加密
+     *
+     * @param publicKey
+     * @param content
+     * @return
+     */
+    public static String publicEncrypt(String publicKey, String content) {
+        try {
+            //base64编码的公钥
+            byte[] decoded = Base64.getDecoder().decode(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.getEncoder().encodeToString(cipher.doFinal(content.getBytes(StandardCharsets.UTF_8)));
+        } catch (Exception e) {
+            log.warn("RSA公钥加密出错，详情:" + e);
+            return null;
+        }
+    }
+
+}

vue/package-lock.json

@@ -12,6 +12,7 @@
     "core-js": "^3.6.5",
     "crypto-js": "^4.0.0",
     "element-ui": "^2.13.1",
+    "jsencrypt": "^3.0.0-rc.1",
     "nprogress": "^0.2.0",
     "uglifyjs-webpack-plugin": "^2.2.0",
     "vue": "^2.6.11",

vue/package.json

@@ -2,6 +2,8 @@
 import {Message, MessageBox, prompt} from 'element-ui';
 /*引入AES加密*/
 import CryptoJs from "crypto-js";
+/*引入jsencrypt*/
+import JsEncrypt from 'jsencrypt';
 
 //某种程度上加混淆
 let {enc, mode, pad} = CryptoJs;
@@ -426,6 +428,20 @@ function sortAscii(obj) {
     return str.substr(0, str.length - 1);
 }
 
+/**
+ * rsa公钥加密
+ * @param key
+ * @param obj
+ * @returns {PromiseLike<ArrayBuffer> | *}
+ */
+function rsaPublicEncrypt(key, obj) {
+    let encrypt = new JsEncrypt();
+    //设置加密公钥
+    encrypt.setPublicKey(key);
+    //返回通过encryptLong方法加密后的结果
+    return encrypt.encrypt(obj);
+}
+
 /**
  * 将方法暴露出去
  */
@@ -451,5 +467,6 @@ export default {
     setSessionStorage,
     getLocationStorage,
     setLocationStorage,
-    sortAscii
+    sortAscii,
+    rsaPublicEncrypt
 };