com.roncoo.pay.permission.utils.RonCooSignUtil.java Source code

Introduction

Here is the source code for com.roncoo.pay.permission.utils.RonCooSignUtil.java

Source

/*
 * Copyright 2015-2102 RonCoo(http://www.roncoo.com) Group.
 *  
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *  
 *      http://www.apache.org/licenses/LICENSE-2.0
 *  
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.roncoo.pay.permission.utils;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * ??
 *
 * www.roncoo.com
 * 
 * @authorshenjialong
 */
public class RonCooSignUtil {

    private static final Log LOG = LogFactory.getLog(RonCooSignUtil.class);

    private RonCooSignUtil() {

    }

    /**
     * @param timeStamp
     * @param userName
     * @param userPwd
     * @return
     */
    public static String getSign(String token, long timeStamp, String userName) {

        String[] arr = new String[] { token, String.valueOf(timeStamp), userName };
        // token?timestamp?nonce?userPwd???
        Arrays.sort(arr);
        StringBuilder content = new StringBuilder();
        for (int i = 0; i < arr.length; i++) {
            content.append(arr[i]);
        }
        MessageDigest md = null;
        String tmpStr = null;

        try {
            md = MessageDigest.getInstance("SHA-1");
            // ??sha1
            byte[] digest = md.digest(content.toString().getBytes());
            tmpStr = byteToStr(digest);
        } catch (NoSuchAlgorithmException e) {
            LOG.error(e);
        }
        return tmpStr;
    }

    /**
     * ???
     * 
     * @param byteArray
     * @return
     */
    private static String byteToStr(byte[] byteArray) {
        String strDigest = "";
        for (int i = 0; i < byteArray.length; i++) {
            strDigest += byteToHexStr(byteArray[i]);
        }
        return strDigest;
    }

    /**
     * ???
     * 
     * @param mByte
     * @return
     */
    private static String byteToHexStr(byte mByte) {
        char[] Digit = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
        char[] tempArr = new char[2];
        tempArr[0] = Digit[(mByte >>> 4) & 0X0F];
        tempArr[1] = Digit[mByte & 0X0F];

        return new String(tempArr);
    }

}