1.增加jt809加密解密功能

2.增加jt809编码解码功能
3.增加单元测试

src/JT809.Protocol.Test/BaseTest.cs

@@ -0,0 +1,14 @@
+using JT809.Protocol.Configs;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace JT809.Protocol.Test
+{
+    public class BaseTest
+    {
+        public JT809EncryptConfig JT809EncryptConfig = new JT809EncryptConfig();
+    }
+}

src/JT809.Protocol.Test/Encrypt/JT809EncryptImplTest.cs

@@ -0,0 +1,14 @@
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace JT809.Protocol.Test.Encrypt
+{
+    [TestClass]
+    public class JT809EncryptImplTest: BaseTest
+    {
+        [TestMethod]
+        public void TestMethod1()
+        {
+        }
+    }
+}

src/JT809.Protocol.Test/Escape/JT809EscapeImplTest.cs

@@ -0,0 +1,41 @@
+using System;
+using System.Text;
+using JT809.Protocol.Encrypt;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace JT809.Protocol.Test.Escape
+{
+    [TestClass]
+    public class JT809EscapeImplTest:BaseTest
+    {
+        public IEncrypt encrypt;
+
+        public IEncrypt encrypt2;
+
+        public JT809EscapeImplTest()
+        {
+            encrypt = new JT809EncryptImpl(0x01,base.JT809EncryptConfig);
+            encrypt2 = new JT809EncryptImpl(0x01, base.JT809EncryptConfig);
+        }
+
+
+        [TestMethod]
+        public void Encrypt()
+        {
+            var pre = System.Text.Encoding.UTF8.GetBytes("smallchi");
+            encrypt.Encrypt(pre);
+        }
+
+        [TestMethod]
+        public void Decrypt()
+        {
+            byte[] buffer = System.Text.Encoding.UTF8.GetBytes("smallchi");
+            byte[] oldBuffer=new byte[buffer.Length];
+            buffer.CopyTo(oldBuffer, 0);
+            encrypt.Encrypt(buffer);
+            encrypt2.Decrypt(buffer);
+            string name=System.Text.Encoding.UTF8.GetString(buffer);
+            Assert.AreEqual("smallchi",name);
+        }
+    }
+}

src/JT809.Protocol.Test/JT809.Protocol.Test.csproj

@@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.props" Condition="Exists('..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{D1C5968B-741D-4D75-BB33-BD006C897D05}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>JT809.Protocol.Test</RootNamespace>
+    <AssemblyName>JT809.Protocol.Test</AssemblyName>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">15.0</VisualStudioVersion>
+    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
+    <ReferencePath>$(ProgramFiles)\Common Files\microsoft shared\VSTT\$(VisualStudioVersion)\UITestExtensionPackages</ReferencePath>
+    <IsCodedUITest>False</IsCodedUITest>
+    <TestProjectType>UnitTest</TestProjectType>
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="Microsoft.VisualStudio.TestPlatform.TestFramework, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\MSTest.TestFramework.1.2.0\lib\net45\Microsoft.VisualStudio.TestPlatform.TestFramework.dll</HintPath>
+    </Reference>
+    <Reference Include="Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
+      <HintPath>..\packages\MSTest.TestFramework.1.2.0\lib\net45\Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll</HintPath>
+    </Reference>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="BaseTest.cs" />
+    <Compile Include="Encrypt\JT809EncryptImplTest.cs" />
+    <Compile Include="Escape\JT809EscapeImplTest.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\JT809.Protocol\JT809.Protocol.csproj">
+      <Project>{4d33a5c9-f583-4230-9791-ab0394efad57}</Project>
+      <Name>JT809.Protocol</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>这台计算机上缺少此项目引用的 NuGet 程序包。使用“NuGet 程序包还原”可下载这些程序包。有关更多信息，请参见 http://go.microsoft.com/fwlink/?LinkID=322105。缺少的文件是 {0}。</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.props'))" />
+    <Error Condition="!Exists('..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.targets'))" />
+  </Target>
+  <Import Project="..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.targets" Condition="Exists('..\packages\MSTest.TestAdapter.1.2.0\build\net45\MSTest.TestAdapter.targets')" />
+</Project>

src/JT809.Protocol.Test/Properties/AssemblyInfo.cs

@@ -0,0 +1,20 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+[assembly: AssemblyTitle("JT809.Protocol.Test")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("JT809.Protocol.Test")]
+[assembly: AssemblyCopyright("Copyright ©  2018")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+[assembly: ComVisible(false)]
+
+[assembly: Guid("d1c5968b-741d-4d75-bb33-bd006c897d05")]
+
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

src/JT809.Protocol.Test/packages.config

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="MSTest.TestAdapter" version="1.2.0" targetFramework="net461" />
+  <package id="MSTest.TestFramework" version="1.2.0" targetFramework="net461" />
+</packages>

src/JT809.Protocol.sln

@@ -3,7 +3,9 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.27428.2005
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "JT809.Protocol", "JT809.Protocol\JT809.Protocol.csproj", "{4D33A5C9-F583-4230-9791-AB0394EFAD57}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "JT809.Protocol", "JT809.Protocol\JT809.Protocol.csproj", "{4D33A5C9-F583-4230-9791-AB0394EFAD57}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "JT809.Protocol.Test", "JT809.Protocol.Test\JT809.Protocol.Test.csproj", "{D1C5968B-741D-4D75-BB33-BD006C897D05}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -15,6 +17,10 @@ Global
 		{4D33A5C9-F583-4230-9791-AB0394EFAD57}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{4D33A5C9-F583-4230-9791-AB0394EFAD57}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{4D33A5C9-F583-4230-9791-AB0394EFAD57}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D1C5968B-741D-4D75-BB33-BD006C897D05}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D1C5968B-741D-4D75-BB33-BD006C897D05}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D1C5968B-741D-4D75-BB33-BD006C897D05}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D1C5968B-741D-4D75-BB33-BD006C897D05}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

src/JT809.Protocol/Configs/JT809EncryptConfig.cs

@@ -0,0 +1,9 @@
+namespace JT809.Protocol.Configs
+{
+    public class JT809EncryptConfig
+    {
+        public uint M1 { get; set; } = 10000000;
+        public uint IA1 { get; set; } = 20000000;
+        public uint IC1 { get; set; } = 30000000;
+    }
+}

src/JT809.Protocol/Encrypt/JT809EncryptImpl.cs

@@ -0,0 +1,43 @@
+using JT809.Protocol.Configs;
+
+namespace JT809.Protocol.Encrypt
+{
+    /// <summary>
+    /// JT809 异或加密解密为同一算法
+    /// </summary>
+    public class JT809EncryptImpl : IEncrypt
+    {
+        private JT809EncryptConfig Config;
+
+        private uint Key { get; set; }
+
+        public JT809EncryptImpl(uint key,JT809EncryptConfig config)
+        {
+            Config = config;
+            Key = key;
+        }
+
+        public void Decrypt(byte[] buffer)
+        {
+             Encrypt(buffer);
+        }
+
+        public void Encrypt(byte[] buffer)
+        {
+            if (0 == Key)
+            {
+                Key = 1;
+            }
+            uint mkey = Config.M1;
+            if (0 == mkey)
+            {
+                mkey = 1;
+            }
+            for (int idx = 0; idx < buffer.Length; idx++)
+            {
+                Key = Config.IA1 * (Key % mkey) + Config.IC1;
+                buffer[idx] ^= (byte)((Key >> 20) & 0xFF);
+            }
+        }
+    }
+}

src/JT809.Protocol/Escape/JT809EscapeImpl.cs

@@ -0,0 +1,88 @@
+using System.Collections.Generic;
+
+namespace JT809.Protocol.Escape
+{
+    public class JT809EscapeImpl : IEscape
+    {
+        public byte[] Escape(byte[] bodyBuffer, IEncrypt encrypt)
+        {
+            List<byte> dataList = new List<byte>();
+            dataList.Add(bodyBuffer[0]);
+            for (int i = 1; i < bodyBuffer.Length - 1; i++)
+            {
+                var item = bodyBuffer[i];
+                switch (item)
+                {
+                    case 0x5b:
+                        dataList.Add(0x5a);
+                        dataList.Add(0x01);
+                        break;
+                    case 0x5a:
+                        dataList.Add(0x5a);
+                        dataList.Add(0x02);
+                        break;
+                    case 0x5d:
+                        dataList.Add(0x5e);
+                        dataList.Add(0x01);
+                        break;
+                    case 0x5e:
+                        dataList.Add(0x5e);
+                        dataList.Add(0x02);
+                        break;
+                    default:
+                        dataList.Add(item);
+                        break;
+                }
+            }
+            dataList.Add(bodyBuffer[bodyBuffer.Length - 1]);
+            var tempBuffe = dataList.ToArray();
+            if (encrypt != null)
+            {
+                encrypt.Encrypt(tempBuffe);
+            }
+            return tempBuffe;
+        }
+
+        public byte[] UnEscape(byte[] bodyBuffer, IEncrypt encrypt)
+        {
+            List<byte> dataList = new List<byte>();
+            dataList.Add(bodyBuffer[0]);
+            for (int i = 1; i < bodyBuffer.Length - 1; i++)
+            {
+                byte first = bodyBuffer[i];
+                byte second = bodyBuffer[i + 1];
+                if (first == 0x5a && second == 0x01)
+                {
+                    dataList.Add(0x5b);
+                    i++;
+                }
+                else if (first == 0x5a && second == 0x02)
+                {
+                    dataList.Add(0x5a);
+                    i++;
+                }
+                else if (first == 0x5e && second == 0x01)
+                {
+                    dataList.Add(0x5d);
+                    i++;
+                }
+                else if (first == 0x5e && second == 0x02)
+                {
+                    dataList.Add(0x5e);
+                    i++;
+                }
+                else
+                {
+                    dataList.Add(first);
+                }
+            }
+            dataList.Add(bodyBuffer[bodyBuffer.Length - 1]);
+            var tempBuffe = dataList.ToArray();
+            if (encrypt != null)
+            {
+                encrypt.Decrypt(tempBuffe);
+            }
+            return tempBuffe;
+        }
+    }
+}

src/JT809.Protocol/IEncrypt.cs

@@ -0,0 +1,8 @@
+namespace JT809.Protocol
+{
+    public interface IEncrypt
+    {
+        void Encrypt(byte[] buffer);
+        void Decrypt(byte[] buffer);
+    }
+}

src/JT809.Protocol/IEscape.cs

@@ -0,0 +1,8 @@
+namespace JT809.Protocol
+{
+    public  interface IEscape
+    {
+        byte[] Escape(byte[] dataContent, IEncrypt encrypt);
+        byte[] UnEscape(byte[] dataContent, IEncrypt encrypt);
+    }
+}

src/JT809.Protocol/JT809.Protocol.csproj

@@ -4,4 +4,8 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Folder Include="Encrypt\" />
+  </ItemGroup>
+
 </Project>