package com.zhaoyang.driver.utils;
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import android.util.Log;
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import com.zhaoyang.driver.netUtls.NetKitKt;
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import java.net.URLDecoder;
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import java.net.URLEncoder;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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import javax.crypto.Cipher;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import cn.sinata.util.Base64DES;
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public class DES {
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/*
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* 不要写成：Cipher cipher = Cipher.getInstance("DES");
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* 或：Cipher cipher = Cipher.getInstance("DES/CBC/NoPadding");
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* 原因是Cipher cipher = Cipher.getInstance("DES");
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* 与Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
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* 等同，填充方式错误，加密的时候会得到16长度的字节数组。
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* 应该写成
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* Cipher cipher = Cipher.getInstance("DES/ECB/NoPadding");
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*/
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private static final String KEY = "ForUApp=";
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private static byte[] iv = {25, 24, 40, 41, 60, 68, 70, 97};
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/**
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* 指定密钥加密
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* @param encryptString 原文
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* @param encryptKey 密钥
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* @return 密文
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* @throws Exception
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*/
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public static String encryptDES(String encryptString, String encryptKey)
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throws Exception {
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IvParameterSpec zeroIv = new IvParameterSpec(iv);
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SecretKeySpec key = new SecretKeySpec(encryptKey.getBytes(), "DES");
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Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
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cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);
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byte[] encryptedData = cipher.doFinal(encryptString.getBytes());
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return Base64DES.encode(encryptedData);
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}
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/**
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* 指定密钥进行解密
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* @param decryptString 密文
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* @param decryptKey 密钥
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* @return 原文
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* @throws Exception
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*/
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public static String decryptDES(String decryptString, String decryptKey)
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throws Exception {
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byte[] byteMi = Base64DES.decode(decryptString);
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IvParameterSpec zeroIv = new IvParameterSpec(iv);
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SecretKeySpec key = new SecretKeySpec(decryptKey.getBytes(), "DES");
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Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
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cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);
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byte decryptedData[] = cipher.doFinal(byteMi);
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return new String(decryptedData);
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}
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/**
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* 默认密钥加密
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* @param encryptString 原文
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* @return 密文
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* @throws Exception
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*/
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public static String encryptDES(String encryptString)
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throws Exception {
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IvParameterSpec zeroIv = new IvParameterSpec(iv);
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SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "DES");
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Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
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cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);
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byte[] encryptedData = cipher.doFinal(encryptString.getBytes());
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return Base64DES.encode(encryptedData);
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}
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/**
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* 默认密钥解密
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* @param decryptString 密文
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* @return 解密得到的原文
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* @throws Exception
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*/
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public static String decryptDES(String decryptString)
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throws Exception {
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byte[] byteMi = Base64DES.decode(decryptString);
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IvParameterSpec zeroIv = new IvParameterSpec(iv);
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SecretKeySpec key = new SecretKeySpec(KEY.getBytes(), "DES");
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Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
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cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);
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byte decryptedData[] = cipher.doFinal(byteMi);
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return new String(decryptedData, "UTF-8");
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}
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public static String parseByte2HexStr(byte buf[]) {
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < buf.length; i++) {
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String hex = Integer.toHexString(buf[i] & 0xFF);
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if (hex.length() == 1) {
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hex = '0' + hex;
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}
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sb.append(hex.toUpperCase());
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}
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return sb.toString();
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}
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public static void main(String[] args) {
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String plaintext = "server=/app/public/getCostSet?type=1";
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try {
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System.out.println("明文：" + plaintext);
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System.out.println("密钥：" + KEY);
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System.out.println("DES密文：" + DES.encryptDES(plaintext));
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System.out.println("DES解密"+DES.decryptDES(DES.encryptDES(plaintext)));
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System.out.println("URLEncoder加密"+URLEncoder.encode(DES.encryptDES(plaintext),"UTF-8"));
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System.out.println("URLEncoder解密"+URLDecoder.decode(URLEncoder.encode(DES.encryptDES(plaintext),"UTF-8"), "UTF-8"));
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* 生成签名
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* @param map
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* @return
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*/
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public static String getSign(Map<String, Object> map) {
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String result = "";
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try {
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List<Map.Entry<String, Object>> infoIds = new ArrayList<>(map.entrySet());
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// 对所有传入参数按照字段名的 ASCII 码从小到大排序（字典序）
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Collections.sort(infoIds, (o1, o2) -> (o1.getKey()).compareTo(o2.getKey()));
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// 构造签名键值对的格式
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StringBuilder sb = new StringBuilder();
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for (Map.Entry<String, Object> item : infoIds) {
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if (item.getKey() == null) {
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item.getKey();
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}
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String key = item.getKey();
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Object val = item.getValue();
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if (!(val == "" || val == null)) {
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sb.append(key).append("=").append(val).append("&");
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}
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}
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result = sb.toString();
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result = result.substring(0,result.length() - 1);
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Log.i("getSign====", "getSign: ==="+result);
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Log.i("getSign====", "AppId: ==="+ NetKitKt.getAppId());
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result = Base64DES.encode(HMACSHA1.HmacSHA1Encrypt(result, NetKitKt.getAppId()));
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//进行MD5加密
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} catch (Exception e) {
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return null;
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}
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return result;
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}
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}
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