com.ai.smart.bottom.helper.MacUtils.java Source code

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Here is the source code for com.ai.smart.bottom.helper.MacUtils.java

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/*
 * Project: idmp-yzapi
 * 
 * File Created at 201849
 * 
 * Copyright 2016 CMCC Corporation Limited.
 * All rights reserved.
 *
 * This software is the confidential and proprietary information of
 * ZYHY Company. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license.
 */
package com.ai.smart.bottom.helper;

import net.sf.json.JSONObject;
import org.apache.commons.codec.binary.Hex;
import org.apache.commons.codec.digest.DigestUtils;

import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;

/**
 * @Type MacUtils.java
 * @Desc mac??
 * @author
 * @date 
 * @version 
 */
public class MacUtils {

    // HMAC
    private static final String HMAC_ALGORITHM = "HmacSHA256";

    //    public static void main(String[] args) {
    //
    //        JSONObject header = new JSONObject();
    //        header.put("", "");
    //        //...header
    //        JSONObject body = new JSONObject();
    //        body.put("", "");
    //        //...body
    //        System.out.println(hmacsha256(SOURCEKEY, toJson(sort(header), sort(body))));
    //    }

    //
    public static String hmacsha256(String secret, String data) {
        Mac mac = null;
        byte[] doFinal = null;
        try {
            mac = Mac.getInstance(HMAC_ALGORITHM);
            //??MD5
            byte[] dataBytes = DigestUtils.md5(data);
            //sourcekeyMD5,
            SecretKey secretkey = new SecretKeySpec(DigestUtils.md5(secret), HMAC_ALGORITHM);
            mac.init(secretkey);
            //HmacSHA256
            doFinal = mac.doFinal(dataBytes);
        } catch (NoSuchAlgorithmException e) {
            throw new RuntimeException(e);
        } catch (InvalidKeyException e) {

        }
        String checksum = Hex.encodeHexString(doFinal).toLowerCase();
        return checksum;
    }

    //??
    static String toJson(JSONObject jo1, JSONObject jo2) {
        JSONObject jo = new JSONObject();
        jo.put("body", jo1);
        jo.put("header", jo2);
        return jo.toString();
    }

    //JSONObject ?
    public static JSONObject sort(JSONObject json) {
        Set<String> iteratorKeys = json.keySet();
        SortedMap<String, Object> map = new TreeMap<String, Object>();
        for (String str : iteratorKeys) {
            map.put(str, json.get(str));
        }
        Set<String> mapkeys = map.keySet();
        JSONObject json2 = new JSONObject();
        for (String s : mapkeys) {
            json2.put(s, map.get(s));
        }
        return json2;
    }

}