天府通接口解密处理

张天森

2022-09-27 53a49f9e2c660f0e5139be7d5d508be717fcf669

天府通接口解密处理

 springcloud_k8s_panzhihuazhihuishequ/common/src/main/java/com/panzhihua/common/utlis/RSAUtils.java

New file
@@ -0,0 +1,153 @@
package com.panzhihua.common.utlis;

import org.apache.commons.codec.binary.Base64;
import org.jsoup.internal.StringUtil;

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.Arrays;
import java.util.HashMap;
import java.util.Map;


public class RSAUtils {

    private static Map<Integer, String> keyMap = new HashMap<Integer, String>(); // 用于封装随机产生的公钥与私钥

	
    /**
     * 随机生成密钥对
     * 
     * @throws NoSuchAlgorithmException
     */
    public static void 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
        System.out.println("publicKeyString:" + publicKeyString);
        System.out.println("privateKeyString:" + privateKeyString);
        keyMap.put(0, publicKeyString); // 0表示公钥
        keyMap.put(1, privateKeyString); // 1表示私钥
    }

    /**
     * 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 {
        if (StringUtil.isBlank(str)) {
            return "";
        }
        // 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);
        String outStr = Base64.encodeBase64String(cipher.doFinal(str.getBytes("UTF-8")));
        return outStr;
    }

    /**
     * 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);
        String outStr = new String(cipher.doFinal(inputByte));
        return outStr;
    }

    /**
     * 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 decrypt2(String str, String privateKey) throws Exception {
        str = str.replace(" ", "+");
        // 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);
        String outStr = new String(cipher.doFinal(inputByte));
        return outStr;
    }

    public static String rsaEncrypt(String input, String rsaPublicKey) {
        String result = "";
        try {
            // 将Base64编码后的公钥转换成PublicKey对象
            byte[] buffer = Base64.decodeBase64(rsaPublicKey);
            KeyFactory keyFactory = KeyFactory.getInstance("RSA");
            X509EncodedKeySpec keySpec = new X509EncodedKeySpec(buffer);
            PublicKey publicKey = keyFactory.generatePublic(keySpec);
            // 加密
            Cipher cipher = Cipher.getInstance("RSA");
            cipher.init(Cipher.ENCRYPT_MODE, publicKey);// ubli
            byte[] inputArray = input.getBytes();
            int inputLength = inputArray.length;
            // System.out.println("加密字节数：" + inputLength);
            // 最大加密字节数，超出最大字节数需要分组加密
            int MAX_ENCRYPT_BLOCK = 117;
            // 标识
            int offSet = 0;
            byte[] resultBytes = {};
            byte[] cache = {};
            while (inputLength - offSet > 0) {
                if (inputLength - offSet > MAX_ENCRYPT_BLOCK) {
                    cache = cipher.doFinal(inputArray, offSet, MAX_ENCRYPT_BLOCK);
                    offSet += MAX_ENCRYPT_BLOCK;
                } else {
                    cache = cipher.doFinal(inputArray, offSet, inputLength - offSet);
                    offSet = inputLength;
                }
                resultBytes = Arrays.copyOf(resultBytes, resultBytes.length + cache.length);
                System.arraycopy(cache, 0, resultBytes, resultBytes.length - cache.length, cache.length);
            }
            result = Base64.encodeBase64String(resultBytes);
        } catch (Exception e) {
            System.out.println("rsaEncrypt error:" + e.getMessage());
        }
        // System.out.println("加密的结果：" + result);
        return result;
    }

}

 springcloud_k8s_panzhihuazhihuishequ/service_property/src/main/java/com/panzhihua/service_property/api/ComPropertyRepairApi.java

@@ -60,11 +60,14 @@
        if(comPropertyRepairVO!=null){
            BeanUtils.copyProperties(comPropertyRepairVO,comPropertyRepair);
        }
        ComPropertyRepairVO vo=comPropertyRepairVO;
        try {
            comPropertyRepairVO.setRepairName(RSAUtils.decrypt(comPropertyRepairVO.getRepairName(), Constants.PRIVATE_KEY));
            comPropertyRepairVO.setRepairPhone(RSAUtils.decrypt(comPropertyRepairVO.getRepairPhone(), Constants.PRIVATE_KEY));
        } catch (Exception e) {
            e.printStackTrace();
            comPropertyRepairVO.setRepairName(vo.getRepairName());
            comPropertyRepairVO.setRepairPhone(vo.getRepairPhone());
        }
        return R.ok(this.comPropertyRepairService.save(comPropertyRepair));
    }