elink
/
ailink-receiver-utils
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elinkthings 4 yıl önce
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8 değiştirilmiş dosya ile 1802 ekleme ve 0 silme
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  1. 42
    0
      .gitignore
  2. 149
    0
      pom.xml
  3. 75
    0
      src/main/java/com/elinkthings/elink/Test.java
  4. 15
    0
      src/main/java/com/elinkthings/elink/common/Common.java
  5. 183
    0
      src/main/java/com/elinkthings/elink/utils/Base64TeaUitls.java
  6. 164
    0
      src/main/java/com/elinkthings/elink/utils/Base64Util.java
  7. 895
    0
      src/main/java/com/elinkthings/elink/utils/BytesUtils.java
  8. 279
    0
      src/main/java/com/elinkthings/elink/utils/TeaUtils.java

+ 42
- 0
.gitignore Dosyayı Görüntüle

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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/

### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache

### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr

### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/

### VS Code ###
.vscode/

.DS_Store
logs/
html/
.libs/
upload/
*.sh
*.bat
.lib/

+ 149
- 0
pom.xml Dosyayı Görüntüle

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<artifactId>utils-test</artifactId>
<groupId>com.inet</groupId>
<version>1.0</version>
<packaging>jar</packaging>
<name>utils-test</name>
<url>http://maven.apache.org</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<dependencies>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.5</version>
</dependency>
</dependencies>
<build>
<plugins>
<!-- compiler插件, 设定JDK版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>${jdk.version}</source>
<target>${jdk.version}</target>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<versionRange>[1.0.0,)</versionRange>
<goals>
<goal>enforce</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore />
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
<!-- enforcer插件, 设定环境与依赖的规则 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-enforcer-plugin</artifactId>
<version>1.1.1</version>
<executions>
<execution>
<id>enforce-banned-dependencies</id>
<goals>
<goal>enforce</goal>
</goals>
<configuration>
<rules>
<bannedDependencies>
<searchTransitive>true</searchTransitive>
<!-- 避免引入过期的jar包 -->
<excludes>
<!-- <exclude>commons-logging</exclude> -->
<exclude>aspectj:aspectj*</exclude>
<exclude>org.springframework:2.*</exclude>
<exclude>org.springframework:3.0.*</exclude>
</excludes>
</bannedDependencies>
</rules>
<fail>true</fail>
</configuration>
</execution>
</executions>
</plugin>
<!-- resource插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>2.5</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<!-- clean插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
</plugin>
<!-- ant插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>sonar-maven-plugin</artifactId>
<version>2.0</version>
</plugin>
<!-- dependency插件 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.4</version>
</plugin>
<!-- 增加functional test的Source目录 -->
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>add-functional-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-test-source</goal>
</goals>
<configuration>
<sources>
<source>src/test/functional</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

+ 75
- 0
src/main/java/com/elinkthings/elink/Test.java Dosyayı Görüntüle

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package com.elinkthings.elink;
import java.io.UnsupportedEncodingException;
import com.elinkthings.elink.utils.Base64Util;
import com.elinkthings.elink.utils.TeaUtils;
public class Test {
public static void main(String args[]) throws UnsupportedEncodingException
{
//设备注册数据
byte[] old =new byte[]{
(byte)0x0f,//imei长度
(byte)0x38,(byte)0x36,(byte)0x31,(byte)0x31,(byte)0x39 ,(byte)0x33 ,(byte)0x30 ,(byte)0x34 ,(byte)0x30 ,(byte)0x34 ,(byte)0x38 ,(byte)0x39 ,(byte)0x31 ,(byte)0x31 ,(byte)0x35, //IMEI
(byte)0x0f, //IMSI长度
(byte)0x34,(byte)0x36 ,(byte)0x30 ,(byte)0x30 ,(byte)0x34 ,(byte)0x34 ,(byte)0x36 ,(byte)0x30 ,(byte)0x36 ,(byte)0x36 ,(byte)0x30 ,(byte)0x34 ,(byte)0x35 ,(byte)0x34 ,(byte)0x38, //IMSI长度
(byte)0x14, //ICCID长度
(byte)0x38,(byte)0x39 ,(byte)0x38 ,(byte)0x36 ,(byte)0x30 ,(byte)0x34 ,(byte)0x32 ,(byte)0x36 ,(byte)0x31 ,(byte)0x30 ,(byte)0x31 ,(byte)0x39 ,(byte)0x39 ,(byte)0x30 ,(byte)0x30 ,(byte)0x32 ,(byte)0x34 ,(byte)0x35 ,(byte)0x34 ,(byte)0x38, //ICCID
(byte)0x13,//版本长度
(byte)0x4c ,(byte)0x4d ,(byte)0x30 ,(byte)0x31 ,(byte)0x48 ,(byte)0x31 ,(byte)0x53 ,(byte)0x31 ,(byte)0x2e ,(byte)0x30 ,(byte)0x5f ,(byte)0x32 ,(byte)0x30 ,(byte)0x32 ,(byte)0x30 ,(byte)0x30 ,(byte)0x36 ,(byte)0x33 ,(byte)0x30, //固件版本
(byte)0x00,(byte)0x00 ,(byte)0x00 ,(byte)0x00 ,(byte)0x00 ,(byte)0x00 ,(byte)0x00
};
//体脂数据
old =new byte[]{
(byte)0x00,(byte)0x00 ,(byte)0x0f,(byte)0x62 //设备ID
,(byte)0x13 //年
,(byte)0x0c //月
,(byte)0x12 //日
,(byte)0x13 //时
,(byte)0x0c //分
,(byte)0x12 //秒
,(byte)0x01 //是否离线记录
,(byte)0x00 //体重数据高
,(byte)0x00 //体重数据中
,(byte)0x3C //体重数据低
,(byte)0x00 //体重单位
,(byte)0x00 //体重精度
,(byte)0x01 //阻抗高
,(byte)0xff //阻抗低
,(byte)0x5f //心率
,(byte)0x01 //算法
,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00 //备用
};
//原始数据
System.out.println( "原始数据：");
for(byte i : old)
System.out.print(i + " ");
System.out.println();
//tea加密
byte[] teaDscrypt =TeaUtils.encrypt(old,null);
System.out.println( "tea加密：");
for(byte i : teaDscrypt)
System.out.print(i + " ");
System.out.println();
//base编码
String base64Text = Base64Util.encoderString(teaDscrypt);
System.out.println("base64编码后的数据长度:"+Base64Util.getLength(base64Text)+"："+base64Text);
//base解码
String base64TextEn= Base64Util.decoderString(base64Text);
System.out.println("base64解码后的数据长度:"+Base64Util.getLength(base64TextEn)+"："+base64TextEn);
//解码数据转换为byte数组
byte[] base64TeaByteOld = Base64Util.hexStrToByteArray(base64TextEn);
System.out.println( "解码后得到的tea加密的byte数组：");
for(byte i : base64TeaByteOld)
System.out.print(i + " ");
System.out.println();
byte[] base64TeaByte =TeaUtils.decrypt(base64TeaByteOld,null);
System.out.println( "tea解密完成：");
for(byte i : base64TeaByte)
System.out.print(i + " ");
System.out.println();
}
}

+ 15
- 0
src/main/java/com/elinkthings/elink/common/Common.java Dosyayı Görüntüle

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package com.elinkthings.elink.common;

public class Common {
/**
* tea加密的密钥
*/
public final static byte[] TEA_KEY = new byte[] {
0x00, 0x00, 0x00, 0x05,
0x00, 0x00, 0x00, 0x03,
0x00, 0x00, 0x00, 0x07,
0x00, 0x00, 0x00, 0x08
};
}

+ 183
- 0
src/main/java/com/elinkthings/elink/utils/Base64TeaUitls.java Dosyayı Görüntüle

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package com.elinkthings.elink.utils;
import java.io.UnsupportedEncodingException;
public class Base64TeaUitls {
//加密
public static String encryptForStr(String dataValue){
byte[] old = dataValue.getBytes();
String result = "";
try {
//tea加密
byte[] teaDscrypt =TeaUtils.encrypt(old,null);
//base编码
result= Base64Util.encoderString(teaDscrypt);
} catch (UnsupportedEncodingException e) {
return result;
}
return result;
}
//加密
public static String encrypt(String dataValue){
byte[] old = BytesUtils.getBytes(Integer.parseInt(dataValue));
String result = "";
try {
//tea加密
byte[] teaDscrypt =TeaUtils.encrypt(old,null);
//base编码
result= Base64Util.encoderString(teaDscrypt);
} catch (UnsupportedEncodingException e) {
return result;
}
return result;
}
//解密
public static byte[] decrypt(String base64Text){
//base解码
String base64TextEn;
try {
base64TextEn = Base64Util.decoderString(base64Text);
//解码数据转换为byte数组
byte[] base64TeaByteOld = Base64Util.hexStrToByteArray(base64TextEn);
//tea解密byte数组
byte[] base64TeaByte =TeaUtils.decrypt(base64TeaByteOld,null);
//将负数转换为整数
/*if(base64TeaByte != null){
for(int i=0;i<base64TeaByte.length;i++){
if(base64TeaByte[i]<0){
base64TeaByte[i] = (byte) (256 + base64TeaByte[i]);
}
}
}*/
return base64TeaByte;
} catch (UnsupportedEncodingException e) {
return null;
}
}
/**
* 十进制转16进制
* @param n
* @return
*/
private static String intToHex(int n) {
StringBuilder sb = new StringBuilder(8);
String a;
char []b = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
if(n==0){
return 0+"";
}
while(n != 0){
if(n<0){
n= 256 +n;
}
sb = sb.append(b[n%16]);
n = n/16;
}
a = sb.reverse().toString();
/*if(a.length() == 1){
a= "0"+a;
}*/
return a;
}
/**
* 获取开始下标到结束下标的16进制的值
* @param start
* @param end
* @param params
* @return
*/
public static String getStartToEndForHex(int start,int end,byte[] params){
String result = "";
for(int i=start;i<=end;i++){
if(i==end){
result = result+intToHex(params[i]);
}else{
result = result+intToHex(params[i])+":";
}
}
return result;
}
/**
* 获取开始下标到结束下标的ASIII对应的值
* @param start
* @param end
* @param params
* @return
*/
public static String getStartToEndForASIII(int start,int end,byte[] params){
String result = "";
for(int i=start;i<=end;i++){
if(i==end){
result = result+asciiToString(params[i]+"");
}else{
result = result+asciiToString(params[i]+"")+":";
}
}
return result;
}
/**
* ASCII转字符
* @param value
* @return
*/
public static String asciiToString(String value)
{
value = value.replaceAll(":", "");
char c= (char) Integer.parseInt(value);
//System.out.println(value+":"+c);
return c+"";
}
/**
* 获取开始下标到结束下标的10进制的值
* @param start
* @param end
* @param params
* @return
*/
public static String getStartToEndForInt(int start,int end,byte[] params){
String result = "";
for(int i=start;i<=end;i++){
int temp = params[i];
if(temp < 0){
temp = 256 + temp;
}
if(i==end){
result = result+temp;
}else{
result = result+temp+":";
}
}
return result;
}
/**
* 获取低位到高位的移位＋或运算的值
* @param indexLow
* @param indexHigh
* @param params
* @return
*/
public static String getLowConactHighEndForInt(int indexLow,int indexHigh,byte[] params){
String result = "";
int tempResult = 0;
for(int i = indexLow;i<=indexHigh;i++){
int temp = (params[i] < 0 ? 256 + params[i] : params[i]);
int tempmov = (indexHigh-i)+2;
tempmov = (i == indexHigh ? 0 : (int) Math.pow(2, tempmov));
tempResult = (temp << tempmov) | tempResult;
}
return result+tempResult;
}
}

+ 164
- 0
src/main/java/com/elinkthings/elink/utils/Base64Util.java Dosyayı Görüntüle

@@ -0,0 +1,164 @@

package com.elinkthings.elink.utils;
import java.io.UnsupportedEncodingException;
import java.util.Base64;

public class Base64Util
{
final static Base64.Decoder decoder = Base64.getDecoder();
final static Base64.Encoder encoder = Base64.getEncoder();
public Base64Util(){}
/**
* 解码
* @param encoderStr
* @return
* @throws UnsupportedEncodingException
*/
public static String decoderString(String base64Text) throws UnsupportedEncodingException{
String result = "";
if(base64Text != null && !base64Text.isEmpty() && !base64Text.equals("")){
byte[] textByte = decoder.decode(base64Text);
result = bytes_String16(textByte);
}
return result;
}
/**
* byte[]转16进制字符串
* @param b
* @return
*/
public static String bytes_String16(byte[] b) {
StringBuilder sb = new StringBuilder();
for(int i=0;i<b.length;i++) {
sb.append(String.format("%02x", b[i]));
}
return sb.toString();
}

/**
* 编码
* @param encoderStr
* @return
* @throws UnsupportedEncodingException
*/
public static String encoderString(String base64Text) throws UnsupportedEncodingException{
String result = "";
if(base64Text != null && !base64Text.isEmpty() && !base64Text.equals("")){
byte[] textByte = base64Text.getBytes("UTF-8");
result = encoder.encodeToString(textByte);
}
return result;
}
/**
* 编码
* @param encoderStr
* @return
* @throws UnsupportedEncodingException
*/
public static String encoderString(byte[] textByte) throws UnsupportedEncodingException{
return encoder.encodeToString(textByte);
}

public static int getLength(String s) {
int length = 0;
for (int i = 0; i < s.length(); i++) {
int ascii = Character.codePointAt(s, i);
if (ascii >= 0 && ascii <= 255) {
length++;
} else {
length += 2;
}
}
return length;
}
private static String intToHex(int n) {
StringBuffer s = new StringBuffer();
String a;
char []b = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
while(n != 0){
s = s.append(b[n%16]);
n = n/16;
}
a = s.reverse().toString();
return a;
}
public static byte[] hexStrToByteArray(String str)
{
if (str == null) {
return null;
}
if (str.length() == 0) {
return new byte[0];
}
byte[] byteArray = new byte[str.length() / 2];
for (int i = 0; i < byteArray.length; i++){
String subStr = str.substring(2 * i, 2 * i + 2);
byteArray[i] = ((byte)Integer.parseInt(subStr, 16));
}
return byteArray;
}
public static void main(String args[]) throws UnsupportedEncodingException
{
//01 01 16 b7 28 32 18 4a 88 00 0e 00 00 00 00 42 4d 10 01 0a 00 13 05 07 e9
byte[] old =new byte[]{(byte)0x01
,(byte)0x01 ,(byte)0x16 ,(byte)0xb7 ,(byte)0x28
,(byte)0x32 ,(byte)0x18 ,(byte)0x4a ,(byte)0x88
,(byte)0x00 ,(byte)0x0e ,(byte)0x00 ,(byte)0x00
,(byte)0x00 ,(byte)0x00 ,(byte)0x42 ,(byte)0x4d
,(byte)0x10 ,(byte)0x01 ,(byte)0x0a ,(byte)0x00
,(byte)0x13 ,(byte)0x05 ,(byte)0x07 ,(byte)0xe9};
//原始数据
System.out.println( "原始数据：");
for(byte i : old)
System.out.print(i + " ");
System.out.println();
//tea加密
byte[] teaDscrypt =TeaUtils.encrypt(old,null);
System.out.println( "tea加密：");
for(byte i : teaDscrypt)
System.out.print(i + " ");
System.out.println();
//base编码
String base64Text = encoderString(teaDscrypt);
System.out.println("base64编码后的数据长度:"+getLength(base64Text)+"："+base64Text);
//base解码
String base64TextEn= decoderString(base64Text);
System.out.println("base64解码后的数据长度:"+getLength(base64TextEn)+"："+base64TextEn);
/*//转称byte数组(每两位一个16进制byte)
List<String> base64TeaByteOldList = new ArrayList<String>();
for(int i=0;i<base64TextEn.length();i++){
if(i%2 == 0){
base64TeaByteOldList.add("0x"+base64TextEn.charAt(i)+base64TextEn.charAt(i+1));
}
}
//解码后转换得到的list
System.out.println("解码后转换得到的list：");
for(String byte16:base64TeaByteOldList){
System.out.print(byte16+" ");
}
System.out.println();*/

//解码数据转换为byte数组
byte[] base64TeaByteOld = hexStrToByteArray(base64TextEn);
System.out.println( "解码后得到的tea加密的byte数组：");
for(byte i : base64TeaByteOld)
System.out.print(i + " ");
System.out.println();
byte[] base64TeaByte =TeaUtils.decrypt(base64TeaByteOld,null);
System.out.println( "tea解密：");
for(byte i : base64TeaByte)
System.out.print(i + " ");
System.out.println();
}
}

+ 895
- 0
src/main/java/com/elinkthings/elink/utils/BytesUtils.java Dosyayı Görüntüle

@@ -0,0 +1,895 @@
package com.elinkthings.elink.utils;
import java.nio.charset.Charset;
import org.apache.commons.lang.ArrayUtils;
/**
*
* @Description: 字节数组转换工具类
* @author fun
* @date 2019年3月27日
*/
public class BytesUtils {
public static final String GBK = "GBK";
public static final String UTF8 = "utf-8";
public static final char[] ascii = "0123456789ABCDEF".toCharArray();
private static char[] HEX_VOCABLE = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
/**
* 将short整型数值转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(short data) {
byte[] bytes = new byte[2];
bytes[0] = (byte) ((data & 0xff00) >> 8);
bytes[1] = (byte) (data & 0xff);
return bytes;
}
/**
* 将字符转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(char data) {
byte[] bytes = new byte[2];
bytes[0] = (byte) (data >> 8);
bytes[1] = (byte) (data);
return bytes;
}
/**
* 将布尔值转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(boolean data) {
byte[] bytes = new byte[1];
bytes[0] = (byte) (data ? 1 : 0);
return bytes;
}
/**
* 将整型数值转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(int data) {
byte[] bytes = new byte[4];
bytes[0] = (byte) ((data & 0xff000000) >> 24);
bytes[1] = (byte) ((data & 0xff0000) >> 16);
bytes[2] = (byte) ((data & 0xff00) >> 8);
bytes[3] = (byte) (data & 0xff);
return bytes;
}
/**
* 将long整型数值转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(long data) {
byte[] bytes = new byte[8];
bytes[0] = (byte) ((data >> 56) & 0xff);
bytes[1] = (byte) ((data >> 48) & 0xff);
bytes[2] = (byte) ((data >> 40) & 0xff);
bytes[3] = (byte) ((data >> 32) & 0xff);
bytes[4] = (byte) ((data >> 24) & 0xff);
bytes[5] = (byte) ((data >> 16) & 0xff);
bytes[6] = (byte) ((data >> 8) & 0xff);
bytes[7] = (byte) (data & 0xff);
return bytes;
}
/**
* 将float型数值转换为字节数组
*
* @param data
* @return
*/
public static byte[] getBytes(float data) {
int intBits = Float.floatToIntBits(data);
return getBytes(intBits);
}
/**
*
* @Title: getBytes
* @Description: 将double型数值转换为字节数组
* @return byte[]
* @author fun
* @date 2019年3月27日
*/
public static byte[] getBytes(double data) {
long intBits = Double.doubleToLongBits(data);
return getBytes(intBits);
}
/**
*
* @Title: getBytes
* @Description: 将字符串按照charsetName编码格式的字节数组
* @return byte[]
* @param data 字符串
* @param charsetName
* @author fun
* @date 2019年3月27日
*/
public static byte[] getBytes(String data, String charsetName) {
Charset charset = Charset.forName(charsetName);
return data.getBytes(charset);
}
/**
*
* @Title: getBytes
* @Description: 将字符串按照GBK编码格式的字节数组
* @return byte[]
* @author fun
* @date 2019年3月27日
*/
public static byte[] getBytes(String data) {
return getBytes(data, GBK);
}
/**
*
* @Title: getBoolean
* @Description: 将字节数组第0字节转换为布尔值
* @return boolean
* @author fun
* @date 2019年3月27日
*/
public static boolean getBoolean(byte[] bytes) {
return bytes[0] == 1;
}
/**
*
* @Title: getBoolean
* @Description: 将字节数组的第index字节转换为布尔值
* @return boolean
* @author fun
* @date 2019年3月27日
*/
public static boolean getBoolean(byte[] bytes, int index) {
return bytes[index] == 1;
}
/**
*
* @Title: getShort
* @Description: 将字节数组前2字节转换为short整型数值
* @return short
* @author fun
* @date 2019年3月27日
*/
public static short getShort(byte[] bytes) {
return (short) ((0xff00 & (bytes[0] << 8)) | (0xff & bytes[1]));
}
/**
*
* @Title: getShort
* @Description: 将字节数组从startIndex开始的2个字节转换为short整型数值
* @return short
* @author fun
* @date 2019年3月27日
*/
public static short getShort(byte[] bytes, int startIndex) {
return (short) ((0xff00 & (bytes[startIndex] << 8)) | (0xff & bytes[startIndex + 1]));
}
/**
*
* @Title: getChar
* @Description: 将字节数组前2字节转换为字符
* @return char
* @author fun
* @date 2019年3月27日
*/
public static char getChar(byte[] bytes) {
return (char) ((0xff00 & (bytes[0] << 8)) | (0xff & bytes[1]));
}
/**
*
* @Title: getChar
* @Description: 将字节数组从startIndex开始的2个字节转换为字符
* @return char
* @author fun
* @date 2019年3月27日
*/
public static char getChar(byte[] bytes, int startIndex) {
return (char) ((0xff00 & (bytes[startIndex] << 8)) | (0xff & bytes[startIndex + 1]));
}
/**
*
* @Title: getInt
* @Description: 将字节数组前4字节转换为整型数值
* @return int
* @author fun
* @date 2019年3月27日
*/
public static int getInt(byte[] bytes) {
return (0xff000000 & (bytes[0] << 24) | (0xff0000 & (bytes[1] << 16)) | (0xff00 & (bytes[2] << 8))
| (0xff & bytes[3]));
}
/**
*
* @Title: getInt
* @Description: 将字节数组从startIndex开始的4个字节转换为整型数值
* @return int
* @author fun
* @date 2019年3月27日
*/
public static int getInt(byte[] bytes, int startIndex) {
return (0xff000000 & (bytes[startIndex] << 24) | (0xff0000 & (bytes[startIndex + 1] << 16))
| (0xff00 & (bytes[startIndex + 2] << 8)) | (0xff & bytes[startIndex + 3]));
}
/**
* 将字节数组前8字节转换为long整型数值
*
* @param bytes
* @return
*/
public static long getLong(byte[] bytes) {
return (0xff00000000000000L & ((long) bytes[0] << 56) | (0xff000000000000L & ((long) bytes[1] << 48))
| (0xff0000000000L & ((long) bytes[2] << 40)) | (0xff00000000L & ((long) bytes[3] << 32))
| (0xff000000L & ((long) bytes[4] << 24)) | (0xff0000L & ((long) bytes[5] << 16))
| (0xff00L & ((long) bytes[6] << 8)) | (0xffL & (long) bytes[7]));
}
/**
* 将字节数组从startIndex开始的8个字节转换为long整型数值
*
* @param bytes
* @param startIndex
* @return
*/
public static long getLong(byte[] bytes, int startIndex) {
return (0xff00000000000000L & ((long) bytes[startIndex] << 56)
| (0xff000000000000L & ((long) bytes[startIndex + 1] << 48))
| (0xff0000000000L & ((long) bytes[startIndex + 2] << 40))
| (0xff00000000L & ((long) bytes[startIndex + 3] << 32))
| (0xff000000L & ((long) bytes[startIndex + 4] << 24))
| (0xff0000L & ((long) bytes[startIndex + 5] << 16)) | (0xff00L & ((long) bytes[startIndex + 6] << 8))
| (0xffL & (long) bytes[startIndex + 7]));
}
/**
* 将字节数组前4字节转换为float型数值
*
* @param bytes
* @return
*/
public static float getFloat(byte[] bytes) {
return Float.intBitsToFloat(getInt(bytes));
}
/**
* 将字节数组从startIndex开始的4个字节转换为float型数值
*
* @param bytes
* @param startIndex
* @return
*/
public static float getFloat(byte[] bytes, int startIndex) {
byte[] result = new byte[4];
System.arraycopy(bytes, startIndex, result, 0, 4);
return Float.intBitsToFloat(getInt(result));
}
/**
* 将字节数组前8字节转换为double型数值
*
* @param bytes
* @return
*/
public static double getDouble(byte[] bytes) {
long l = getLong(bytes);
return Double.longBitsToDouble(l);
}
/**
* 将字节数组从startIndex开始的8个字节转换为double型数值
*
* @param bytes
* @param startIndex
* @return
*/
public static double getDouble(byte[] bytes, int startIndex) {
byte[] result = new byte[8];
System.arraycopy(bytes, startIndex, result, 0, 8);
long l = getLong(result);
return Double.longBitsToDouble(l);
}
/**
* 将charsetName编码格式的字节数组转换为字符串
*
* @param bytes
* @param charsetName
* @return
*/
public static String getString(byte[] bytes, String charsetName) {
return new String(bytes, Charset.forName(charsetName));
}
/**
* 将GBK编码格式的字节数组转换为字符串
*
* @param bytes
* @return
*/
public static String getString(byte[] bytes) {
return getString(bytes, GBK);
}
/**
* 将16进制字符串转换为字节数组
*
* @param hex
* @return
*/
public static byte[] hexStringToBytes(String hex) {
if (hex == null || "".equals(hex)) {
return null;
}
int len = hex.length() / 2;
byte[] result = new byte[len];
char[] chArr = hex.toCharArray();
for (int i = 0; i < len; i++) {
int pos = i * 2;
result[i] = (byte) (toByte(chArr[pos]) << 4 | toByte(chArr[pos + 1]));
}
return result;
}
/**
* 将16进制字符串转换为字节数组
*
* @param hex
* @return
*/
public static byte[] hexToBytes(String hex) {
if (hex.length() % 2 != 0)
throw new IllegalArgumentException("input string should be any multiple of 2!");
hex.toUpperCase();
byte[] byteBuffer = new byte[hex.length() / 2];
byte padding = 0x00;
boolean paddingTurning = false;
for (int i = 0; i < hex.length(); i++) {
if (paddingTurning) {
char c = hex.charAt(i);
int index = indexOf(hex, c);
padding = (byte) ((padding << 4) | index);
byteBuffer[i / 2] = padding;
padding = 0x00;
paddingTurning = false;
} else {
char c = hex.charAt(i);
int index = indexOf(hex, c);
padding = (byte) (padding | index);
paddingTurning = true;
}
}
return byteBuffer;
}
private static int indexOf(String input, char c) {
int index = ArrayUtils.indexOf(HEX_VOCABLE, c);
if (index < 0) {
throw new IllegalArgumentException("err input:" + input);
}
return index;
}
/**
* 将BCD编码的字节数组转换为字符串
*
* @param bcds
* @return
*/
public static String bcdToString(byte[] bcds) {
if (bcds == null || bcds.length == 0) {
return null;
}
byte[] temp = new byte[2 * bcds.length];
for (int i = 0; i < bcds.length; i++) {
temp[i * 2] = (byte) ((bcds[i] >> 4) & 0x0f);
temp[i * 2 + 1] = (byte) (bcds[i] & 0x0f);
}
StringBuffer res = new StringBuffer();
for (int i = 0; i < temp.length; i++) {
res.append(ascii[temp[i]]);
}
return res.toString();
}
/**
* 字节转整形
*
* @param value
* @return
*/
public static int bcdToInt(byte value) {
return ((value >> 4) * 10) + (value & 0x0F);
}
/**
* 字节数组转16进制字符串
*
* @param bs
* @return
*/
public static String bytesToHex(byte[] bs) {
StringBuilder sb = new StringBuilder();
for (byte b : bs) {
int high = (b >> 4) & 0x0f;
int low = b & 0x0f;
sb.append(HEX_VOCABLE[high]);
sb.append(HEX_VOCABLE[low]);
}
return sb.toString();
}
/**
* 字节数组取前len个字节转16进制字符串
*
* @param bs
* @param len
* @return
*/
public static String bytesToHex(byte[] bs, int len) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < len; i++) {
byte b = bs[i];
int high = (b >> 4) & 0x0f;
int low = b & 0x0f;
sb.append(HEX_VOCABLE[high]);
sb.append(HEX_VOCABLE[low]);
}
return sb.toString();
}
/**
* 字节数组偏移offset长度之后的取len个字节转16进制字符串
*
* @param bs
* @param offset
* @param len
* @return
*/
public static String bytesToHex(byte[] bs, int offset, int len) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < len; i++) {
byte b = bs[offset + i];
int high = (b >> 4) & 0x0f;
int low = b & 0x0f;
sb.append(HEX_VOCABLE[high]);
sb.append(HEX_VOCABLE[low]);
}
return sb.toString();
}
/**
* 字节转16进制字符串
*
* @param bs
* @return
*/
public static String byteToHex(byte b) {
StringBuilder sb = new StringBuilder();
int high = (b >> 4) & 0x0f;
int low = b & 0x0f;
sb.append(HEX_VOCABLE[high]);
sb.append(HEX_VOCABLE[low]);
String s = sb.toString();
if ("".equals(s.substring(0, 1))) {
return s.substring(1);
} else {
return s;
}
}
/**
* 将字节数组取反
*
* @param src
* @return
*/
public static String negate(byte[] src) {
if (src == null || src.length == 0) {
return null;
}
byte[] temp = new byte[2 * src.length];
for (int i = 0; i < src.length; i++) {
byte tmp = (byte) (0xFF ^ src[i]);
temp[i * 2] = (byte) ((tmp >> 4) & 0x0f);
temp[i * 2 + 1] = (byte) (tmp & 0x0f);
}
StringBuffer res = new StringBuffer();
for (int i = 0; i < temp.length; i++) {
res.append(ascii[temp[i]]);
}
return res.toString();
}
/**
* 比较字节数组是否相同
*
* @param a
* @param b
* @return
*/
public static boolean compareBytes(byte[] a, byte[] b) {
if (a == null || a.length == 0 || b == null || b.length == 0 || a.length != b.length) {
return false;
}
if (a.length == b.length) {
for (int i = 0; i < a.length; i++) {
if (a[i] != b[i]) {
return false;
}
}
} else {
return false;
}
return true;
}
/**
* 只比对指定长度byte
*
* @param a
* @param b
* @param len
* @return
*/
public static boolean compareBytes(byte[] a, byte[] b, int len) {
if (a == null || a.length == 0 || b == null || b.length == 0 || a.length < len || b.length < len) {
return false;
}
for (int i = 0; i < len; i++) {
if (a[i] != b[i]) {
return false;
}
}
return true;
}
/**
* 将字节数组转换为二进制字符串
*
* @param items
* @return
*/
public static String bytesToBinaryString(byte[] items) {
if (items == null || items.length == 0) {
return null;
}
StringBuffer buf = new StringBuffer();
for (byte item : items) {
buf.append(byteToBinaryString(item));
}
return buf.toString();
}
/**
* 将字节转换为二进制字符串
*
* @param items
* @return
*/
public static String byteToBinaryString(byte item) {
byte a = item;
StringBuffer buf = new StringBuffer();
for (int i = 0; i < 8; i++) {
buf.insert(0, a % 2);
a = (byte) (a >> 1);
}
return buf.toString();
}
/**
* 对数组a，b进行异或运算
*
* @param a
* @param b
* @return
*/
public static byte[] xor(byte[] a, byte[] b) {
if (a == null || a.length == 0 || b == null || b.length == 0 || a.length != b.length) {
return null;
}
byte[] result = new byte[a.length];
for (int i = 0; i < a.length; i++) {
result[i] = (byte) (a[i] ^ b[i]);
}
return result;
}
/**
* 对数组a，b进行异或运算 运算长度len
*
* @param a
* @param b
* @param len
* @return
*/
public static byte[] xor(byte[] a, byte[] b, int len) {
if (a == null || a.length == 0 || b == null || b.length == 0) {
return null;
}
if (a.length < len || b.length < len) {
return null;
}
byte[] result = new byte[len];
for (int i = 0; i < len; i++) {
result[i] = (byte) (a[i] ^ b[i]);
}
return result;
}
/**
* 将short整型数值转换为字节数组
*
* @param num
* @return
*/
public static byte[] shortToBytes(int num) {
byte[] temp = new byte[2];
for (int i = 0; i < 2; i++) {
temp[i] = (byte) ((num >>> (8 - i * 8)) & 0xFF);
}
return temp;
}
/**
* 将字节数组转为整型
*
* @param num
* @return
*/
public static int bytesToShort(byte[] arr) {
int mask = 0xFF;
int temp = 0;
int result = 0;
for (int i = 0; i < 2; i++) {
result <<= 8;
temp = arr[i] & mask;
result |= temp;
}
return result;
}
/**
* 将整型数值转换为指定长度的字节数组
*
* @param num
* @return
*/
public static byte[] intToBytes(int num) {
byte[] temp = new byte[4];
for (int i = 0; i < 4; i++) {
temp[i] = (byte) ((num >>> (24 - i * 8)) & 0xFF);
}
return temp;
}
/**
* 将整型数值转换为指定长度的字节数组
*
* @param src
* @param len
* @return
*/
public static byte[] intToBytes(int src, int len) {
if (len < 1 || len > 4) {
return null;
}
byte[] temp = new byte[len];
for (int i = 0; i < len; i++) {
temp[len - 1 - i] = (byte) ((src >>> (8 * i)) & 0xFF);
}
return temp;
}
/**
* 将字节数组转换为整型数值
*
* @param arr
* @return
*/
public static int bytesToInt(byte[] arr) {
int mask = 0xFF;
int temp = 0;
int result = 0;
for (int i = 0; i < 4; i++) {
result <<= 8;
temp = arr[i] & mask;
result |= temp;
}
return result;
}
/**
* 将long整型数值转换为字节数组
*
* @param num
* @return
*/
public static byte[] longToBytes(long num) {
byte[] temp = new byte[8];
for (int i = 0; i < 8; i++) {
temp[i] = (byte) ((num >>> (56 - i * 8)) & 0xFF);
}
return temp;
}
/**
* 将字节数组转换为long整型数值
*
* @param arr
* @return
*/
public static long bytesToLong(byte[] arr) {
int mask = 0xFF;
int temp = 0;
long result = 0;
int len = Math.min(8, arr.length);
for (int i = 0; i < len; i++) {
result <<= 8;
temp = arr[i] & mask;
result |= temp;
}
return result;
}
/**
* 将16进制字符转换为字节
*
* @param c
* @return
*/
public static byte toByte(char c) {
byte b = (byte) "0123456789ABCDEF".indexOf(c);
return b;
}
/**
* 功能描述：把两个字节的字节数组转化为整型数据，高位补零，例如：<br/>
* 有字节数组byte[] data = new byte[]{1,2};转换后int数据的字节分布如下：<br/>
* 00000000 00000000 00000001 00000010,函数返回258
*
* @param lenData
* 需要进行转换的字节数组
* @return 字节数组所表示整型值的大小
*/
public static int bytesToIntWhereByteLengthEquals2(byte lenData[]) {
if (lenData.length != 2) {
return -1;
}
byte fill[] = new byte[] { 0, 0 };
byte real[] = new byte[4];
System.arraycopy(fill, 0, real, 0, 2);
System.arraycopy(lenData, 0, real, 2, 2);
int len = byteToInt(real);
return len;
}
/**
* 功能描述：将byte数组转化为int类型的数据
*
* @param byteVal
* 需要转化的字节数组
* @return 字节数组所表示的整型数据
*/
public static int byteToInt(byte[] byteVal) {
int result = 0;
for (int i = 0; i < byteVal.length; i++) {
int tmpVal = (byteVal[i] << (8 * (3 - i)));
switch (i) {
case 0:
tmpVal = tmpVal & 0xFF000000;
break;
case 1:
tmpVal = tmpVal & 0x00FF0000;
break;
case 2:
tmpVal = tmpVal & 0x0000FF00;
break;
case 3:
tmpVal = tmpVal & 0x000000FF;
break;
}
result = result | tmpVal;
}
return result;
}
public static byte CheckXORSum(byte[] bData) {
byte sum = 0x00;
for (int i = 0; i < bData.length; i++) {
sum ^= bData[i];
}
return sum;
}
/**
* 从offset开始 将后续长度为len的byte字节转为int
*
* @param data
* @param offset
* @param len
* @return
*/
public static int bytesToInt(byte[] data, int offset, int len) {
int mask = 0xFF;
int temp = 0;
int result = 0;
len = Math.min(len, 4);
for (int i = 0; i < len; i++) {
result <<= 8;
temp = data[offset + i] & mask;
result |= temp;
}
return result;
}
/**
* byte字节数组中的字符串的长度
*
* @param data
* @return
*/
public static int getBytesStringLen(byte[] data) {
int count = 0;
for (byte b : data) {
if (b == 0x00)
break;
count++;
}
return count;
}
/**
*
* @Title: hexString2binaryString
* @Description: 十六进制字符串转二进制字符串
* @return String
* @author fun
* @date 2019年3月27日
*/
public static String hexString2binaryString(String hexString) {
if (hexString == null || hexString.length() % 2 != 0)
return null;
String bString = "", tmp;
for (int i = 0; i < hexString.length(); i++) {
tmp = "0000" + Integer.toBinaryString(Integer.parseInt(hexString.substring(i, i + 1), 16));
bString += tmp.substring(tmp.length() - 4);
}
return bString;
}
}

+ 279
- 0
src/main/java/com/elinkthings/elink/utils/TeaUtils.java Dosyayı Görüntüle

@@ -0,0 +1,279 @@
package com.elinkthings.elink.utils;
import java.io.UnsupportedEncodingException;
import com.elinkthings.elink.common.Common;
public class TeaUtils {
public static byte[] encrypt(byte[] data, byte[] key) {
int data_len = data.length; // 数据的长度
if (data_len == 0) {
return new byte[] {};
}
TeaUtils t = new TeaUtils();
if (!t.setKey(key)) {
return new byte[] {};
}
int group_len = 8;
int residues = data_len % group_len; // 余数
int dlen = data_len - residues;
// 用于储存加密的密文，第一字节为余数的大小
//int result_len = data_len + 1;
int result_len = data_len;
if (residues > 0) {
result_len += group_len - residues;
}
byte[] result = new byte[result_len];
//result[0] = (byte)residues;
byte[] plain = new byte[group_len];
byte[] enc = new byte[group_len];
for (int i = 0; i < dlen; i += group_len) {
for (int j = 0; j < group_len; j++) {
plain[j] = data[i + j];
}
enc = t.encrypt_group(plain);
for (int k = 0; k < group_len; k++) {
//result[i + k + 1] = enc[k];
result[i + k ] = enc[k];
}
}
if (residues > 0) {
for (int j = 0; j < residues; j++) {
plain[j] = data[dlen + j];
}
int padding = group_len - residues;
for (int j = 0; j < padding; j++) {
plain[residues + j] = (byte)0x00;
}
enc = t.encrypt_group(plain);
for (int k = 0; k < group_len; k++) {
//result[dlen + k + 1] = enc[k];
result[dlen + k] = enc[k];
}
}
return result;
}
public static byte[] decrypt(byte[] data, byte[] key) {
int group_len = 8;
// if (data.length % group_len != 1) {
// return new byte[] {};
// }
TeaUtils t = new TeaUtils();
if (!t.setKey(key)) {
return new byte[] {};
}
//int data_len = data.length - 1, dlen; // 数据的长度
int data_len = data.length, dlen; // 数据的长度
dlen = data_len;
//int residues = (int)(data[0]); // 余数
// if (residues > 0) {
// dlen = data_len - group_len;
// } else {
// dlen = data_len;
// }
//byte[] result = new byte[dlen + residues];
byte[] result = new byte[dlen];
byte[] dec = new byte[group_len];
byte[] enc = new byte[group_len];
for (int i = 0; i < dlen; i += group_len) {
for (int j = 0; j < group_len; j++) {
//enc[j] = data[i + j + 1];
enc[j] = data[i + j];
}
dec = t.decrypt_group(enc);
for (int k = 0; k < group_len; k++) {
result[i + k] = dec[k];
}
}
// if (residues > 0) {
// for (int j = 0; j < group_len; j++) {
// enc[j] = data[dlen + j + 1];
// }
// dec = t.decrypt_group(enc);
// for (int k = 0; k < residues; k++) {
// result[dlen + k] = dec[k];
// }
// }
return result;
}
/**
* 设置密钥
* @param k 密钥
* @return 密钥长度为16个byte时， 设置密钥并返回true，否则返回false
*/
public boolean setKey(byte[] k) {
if(k==null){
k = Common.TEA_KEY;
}
if (k.length != 16) {
return false;
}
k0 = bytes_to_uint32(new byte[] {k[0], k[1], k[2], k[3]});
k1 = bytes_to_uint32(new byte[] {k[4], k[5], k[6], k[7]});
k2 = bytes_to_uint32(new byte[] {k[8], k[9], k[10], k[11]});
k3 = bytes_to_uint32(new byte[] {k[12], k[13], k[14], k[15]});
return true;
}
/**
* 设置加密的轮数，默认为32轮
* @param loops 加密轮数
* @return 轮数为16、32、64时，返回true，否则返回false
*/
public boolean setLoops(int loops) {
switch (loops) {
case 16:
case 32:
case 64:
this.loops = loops;
return true;
}
return false;
}
private static long UINT32_MAX = 0xFFFFFFFFL;
private static long BYTE_1 = 0xFFL;
private static long BYTE_2 = 0xFF00L;
private static long BYTE_3 = 0xFF0000L;
private static long BYTE_4 = 0xFF000000L;
private static long delta = 0x9E3779B9L;
private static long k0;
private static long k1;
private static long k2;
private static long k3;
private static int loops = 32;
/**
* 加密一组明文
* @param v 需要加密的明文
* @return 返回密文
*/
public static byte[] encrypt_group(byte[] v) {
long v0 = bytes_to_uint32(new byte[] {v[0], v[1], v[2], v[3]});
long v1 = bytes_to_uint32(new byte[] {v[4], v[5], v[6], v[7]});
long sum = 0L;
long v0_xor_1 = 0L, v0_xor_2 = 0L, v0_xor_3 = 0L;
long v1_xor_1 = 0L, v1_xor_2 = 0L, v1_xor_3 = 0L;
for (int i = 0; i < loops; i++) {
sum = toUInt32(sum + delta);
v0_xor_1 = toUInt32(toUInt32(v1 << 4) + k0);
v0_xor_2 = toUInt32(v1 + sum);
v0_xor_3 = toUInt32((v1 >> 5) + k1);
v0 = toUInt32( v0 + toUInt32(v0_xor_1 ^ v0_xor_2 ^ v0_xor_3) );
v1_xor_1 = toUInt32(toUInt32(v0 << 4) + k2);
v1_xor_2 = toUInt32(v0 + sum);
v1_xor_3 = toUInt32((v0 >> 5) + k3);
//System.out.printf("%08X\t%08X\t%08X\t%08X\n", i, v0, v0 >> 5, k3);
v1 = toUInt32( v1 + toUInt32(v1_xor_1 ^ v1_xor_2 ^ v1_xor_3) );
}
byte[] b0 = long_to_bytes(v0, 4);
byte[] b1 = long_to_bytes(v1, 4);
return new byte[] {b0[0], b0[1], b0[2], b0[3], b1[0], b1[1], b1[2], b1[3]};
}
/**
* 解密一组密文
* @param v 要解密的密文
* @return 返回明文
*/
public static byte[] decrypt_group(byte[] v) {
long v0 = bytes_to_uint32(new byte[] {v[0], v[1], v[2], v[3]});
long v1 = bytes_to_uint32(new byte[] {v[4], v[5], v[6], v[7]});
long sum = 0xC6EF3720L, tmp = 0L;
for (int i = 0; i < loops; i++) {
tmp = toUInt32(toUInt32(v0 << 4) + k2);
v1 = toUInt32( v1 - toUInt32(tmp ^ toUInt32(v0 + sum) ^ toUInt32((v0 >> 5) + k3)) );
tmp = toUInt32(toUInt32(v1 << 4) + k0);
v0 = toUInt32( v0 - toUInt32(tmp ^ toUInt32(v1 + sum) ^ toUInt32((v1 >> 5) + k1)) );
sum = toUInt32(sum - delta);
}
byte[] b0 = long_to_bytes(v0, 4);
byte[] b1 = long_to_bytes(v1, 4);
return new byte[] {b0[0], b0[1], b0[2], b0[3], b1[0], b1[1], b1[2], b1[3]};
}
/**
* 将 long 类型的 n 转为 byte 数组，如果 len 为 4，则只返回低32位的4个byte
* @param n 需要转换的long
* @param len 若为4，则只返回低32位的4个byte，否则返回8个byte
* @return 转换后byte数组
*/
private static byte[] long_to_bytes(long n, int len) {
byte a = (byte)((n & BYTE_4) >> 24);
byte b = (byte)((n & BYTE_3) >> 16);
byte c = (byte)((n & BYTE_2) >> 8);
byte d = (byte)(n & BYTE_1);
if (len == 4) {
return new byte[] {a, b, c, d};
}
byte ha = (byte)(n >> 56);
byte hb = (byte)((n >> 48) & BYTE_1);
byte hc = (byte)((n >> 40) & BYTE_1);
byte hd = (byte)((n >> 32) & BYTE_1);
return new byte[] {ha, hb, hc, hd, a, b, c, d};
}
/**
* 将4个byte转为 Unsigned Integer 32，以 long 形式返回
* @param bs 需要转换的字节
* @return 返回 long，高32位为0，低32位视为Unsigned Integer
*/
private static long bytes_to_uint32(byte[] bs) {
return ((bs[0]<<24) & BYTE_4) +
((bs[1]<<16) & BYTE_3) +
((bs[2]<<8) & BYTE_2) +
(bs[3] & BYTE_1);
}
/**
* 将long的高32位清除，只保留低32位，低32位视为Unsigned Integer
* @param n 需要清除的long
* @return 返回高32位全为0的long
*/
private static long toUInt32(long n) {
return n & UINT32_MAX;
}
public static void main(String args[]) throws UnsupportedEncodingException
{
TeaUtils t = new TeaUtils();
t.setKey(Common.TEA_KEY);
byte[] old = new byte[]{(byte)0x01,(byte)0x16,(byte)0xA4,(byte)0x28,
(byte)0x32,(byte)0x18,(byte)0x4A,(byte)0x88,
(byte)0x00,(byte)0x00 ,(byte)0x00 ,(byte)0x00,
(byte)0x00 ,(byte)0x00 ,(byte)0x42 ,(byte)0x4D,
(byte)0x10 ,(byte)0x01,(byte)0x0A ,(byte)0x00,
(byte)0x13 ,(byte)0x05 ,(byte)0x07 ,(byte)0xC8};
/*byte[] old = new byte[] {
0x00, 0x00, 0x00, 0x20,
0x00, 0x00, 0x00, 0x10
};*/
byte[] enc = t.encrypt(old,Common.TEA_KEY);
System.out.println( "tea加密：");
for(byte i : enc)
System.out.print(i + " ");
System.out.println();
byte[] dec = t.decrypt(enc,Common.TEA_KEY);
System.out.println( "tea解密：");
for(byte i : dec)
System.out.print(i + " ");
System.out.println();
}
}

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