diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ
diff --git a/SubCabinetSolution/SubCabinetSolution.csproj b/SubCabinetSolution/SubCabinetSolution.csproj
index cb5532c..953c042 100644
--- a/SubCabinetSolution/SubCabinetSolution.csproj
+++ b/SubCabinetSolution/SubCabinetSolution.csproj
@@ -34,6 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0">
       <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net47\CommonServiceLocator.dll</HintPath>
       <Private>True</Private>
@@ -50,11 +54,32 @@
       <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.19.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604">
+      <HintPath>..\packages\Google.Protobuf.3.19.4\lib\net45\Google.Protobuf.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.1.2.6\lib\net46\K4os.Compression.LZ4.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4.Streams, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.Streams.1.2.6\lib\net46\K4os.Compression.LZ4.Streams.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Hash.xxHash, Version=1.0.6.0, Culture=neutral, PublicKeyToken=32cd54395057cec3">
+      <HintPath>..\packages\K4os.Hash.xxHash.1.0.6\lib\net46\K4os.Hash.xxHash.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.5.0.0\lib\net461\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="mscorlib" />
+    <Reference Include="MySql.Data, Version=8.0.30.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\MySql.Data.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
       <HintPath>..\packages\Newtonsoft.Json.13.0.2-beta1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
@@ -80,8 +105,13 @@
       <HintPath>..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.ComponentModel" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
       <Private>True</Private>
@@ -107,6 +137,7 @@
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Transactions" />
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
@@ -119,9 +150,17 @@
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="Ubiety.Dns.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\Ubiety.Dns.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="ZstdNet, Version=1.4.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\ZstdNet.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -129,6 +168,7 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Model\PublicKeyModel.cs" />
+    <Compile Include="Utils\DataBaseManager.cs" />
     <Compile Include="Utils\HttpRequestHandler.cs" />
     <Compile Include="Utils\LocalConstant.cs" />
     <Compile Include="Utils\PasswordBindingHelper.cs" />

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ
diff --git a/SubCabinetSolution/SubCabinetSolution.csproj b/SubCabinetSolution/SubCabinetSolution.csproj
index cb5532c..953c042 100644
--- a/SubCabinetSolution/SubCabinetSolution.csproj
+++ b/SubCabinetSolution/SubCabinetSolution.csproj
@@ -34,6 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0">
       <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net47\CommonServiceLocator.dll</HintPath>
       <Private>True</Private>
@@ -50,11 +54,32 @@
       <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.19.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604">
+      <HintPath>..\packages\Google.Protobuf.3.19.4\lib\net45\Google.Protobuf.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.1.2.6\lib\net46\K4os.Compression.LZ4.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4.Streams, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.Streams.1.2.6\lib\net46\K4os.Compression.LZ4.Streams.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Hash.xxHash, Version=1.0.6.0, Culture=neutral, PublicKeyToken=32cd54395057cec3">
+      <HintPath>..\packages\K4os.Hash.xxHash.1.0.6\lib\net46\K4os.Hash.xxHash.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.5.0.0\lib\net461\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="mscorlib" />
+    <Reference Include="MySql.Data, Version=8.0.30.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\MySql.Data.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
       <HintPath>..\packages\Newtonsoft.Json.13.0.2-beta1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
@@ -80,8 +105,13 @@
       <HintPath>..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.ComponentModel" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
       <Private>True</Private>
@@ -107,6 +137,7 @@
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Transactions" />
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
@@ -119,9 +150,17 @@
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="Ubiety.Dns.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\Ubiety.Dns.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="ZstdNet, Version=1.4.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\ZstdNet.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -129,6 +168,7 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Model\PublicKeyModel.cs" />
+    <Compile Include="Utils\DataBaseManager.cs" />
     <Compile Include="Utils\HttpRequestHandler.cs" />
     <Compile Include="Utils\LocalConstant.cs" />
     <Compile Include="Utils\PasswordBindingHelper.cs" />
diff --git a/SubCabinetSolution/Utils/DataBaseManager.cs b/SubCabinetSolution/Utils/DataBaseManager.cs
new file mode 100644
index 0000000..21137e1
--- /dev/null
+++ b/SubCabinetSolution/Utils/DataBaseManager.cs
@@ -0,0 +1,21 @@
+using MySql.Data.MySqlClient;
+
+namespace SubCabinetSolution.Utils
+{
+    public class DataBaseManager
+    {
+        private static DataBaseManager _dataBase;
+
+        public static DataBaseManager GetInstance()
+        {
+            return _dataBase ?? (_dataBase = new DataBaseManager());
+        }
+
+        public MySqlConnection GetConnection()
+        {
+            MySqlConnection connection = new MySqlConnection(LocalConstant.MysqlConfig);
+            connection.Open();
+            return connection;
+        }
+    }
+}
\ No newline at end of file

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ
diff --git a/SubCabinetSolution/SubCabinetSolution.csproj b/SubCabinetSolution/SubCabinetSolution.csproj
index cb5532c..953c042 100644
--- a/SubCabinetSolution/SubCabinetSolution.csproj
+++ b/SubCabinetSolution/SubCabinetSolution.csproj
@@ -34,6 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0">
       <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net47\CommonServiceLocator.dll</HintPath>
       <Private>True</Private>
@@ -50,11 +54,32 @@
       <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.19.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604">
+      <HintPath>..\packages\Google.Protobuf.3.19.4\lib\net45\Google.Protobuf.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.1.2.6\lib\net46\K4os.Compression.LZ4.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4.Streams, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.Streams.1.2.6\lib\net46\K4os.Compression.LZ4.Streams.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Hash.xxHash, Version=1.0.6.0, Culture=neutral, PublicKeyToken=32cd54395057cec3">
+      <HintPath>..\packages\K4os.Hash.xxHash.1.0.6\lib\net46\K4os.Hash.xxHash.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.5.0.0\lib\net461\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="mscorlib" />
+    <Reference Include="MySql.Data, Version=8.0.30.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\MySql.Data.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
       <HintPath>..\packages\Newtonsoft.Json.13.0.2-beta1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
@@ -80,8 +105,13 @@
       <HintPath>..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.ComponentModel" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
       <Private>True</Private>
@@ -107,6 +137,7 @@
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Transactions" />
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
@@ -119,9 +150,17 @@
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="Ubiety.Dns.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\Ubiety.Dns.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="ZstdNet, Version=1.4.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\ZstdNet.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -129,6 +168,7 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Model\PublicKeyModel.cs" />
+    <Compile Include="Utils\DataBaseManager.cs" />
     <Compile Include="Utils\HttpRequestHandler.cs" />
     <Compile Include="Utils\LocalConstant.cs" />
     <Compile Include="Utils\PasswordBindingHelper.cs" />
diff --git a/SubCabinetSolution/Utils/DataBaseManager.cs b/SubCabinetSolution/Utils/DataBaseManager.cs
new file mode 100644
index 0000000..21137e1
--- /dev/null
+++ b/SubCabinetSolution/Utils/DataBaseManager.cs
@@ -0,0 +1,21 @@
+using MySql.Data.MySqlClient;
+
+namespace SubCabinetSolution.Utils
+{
+    public class DataBaseManager
+    {
+        private static DataBaseManager _dataBase;
+
+        public static DataBaseManager GetInstance()
+        {
+            return _dataBase ?? (_dataBase = new DataBaseManager());
+        }
+
+        public MySqlConnection GetConnection()
+        {
+            MySqlConnection connection = new MySqlConnection(LocalConstant.MysqlConfig);
+            connection.Open();
+            return connection;
+        }
+    }
+}
\ No newline at end of file
diff --git a/SubCabinetSolution/Utils/LocalConstant.cs b/SubCabinetSolution/Utils/LocalConstant.cs
index 3051ea5..5955060 100644
--- a/SubCabinetSolution/Utils/LocalConstant.cs
+++ b/SubCabinetSolution/Utils/LocalConstant.cs
@@ -3,5 +3,8 @@
     public static class LocalConstant
     {
         public const string BaseHttpUrl = "http://111.198.10.15:11311";
+
+        public const string MysqlConfig =
+            "server=111.198.10.15;port=11336;Database=casic_mobile_shelter;username=root;password=Casic203;";
     }
 }
\ No newline at end of file

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ
diff --git a/SubCabinetSolution/SubCabinetSolution.csproj b/SubCabinetSolution/SubCabinetSolution.csproj
index cb5532c..953c042 100644
--- a/SubCabinetSolution/SubCabinetSolution.csproj
+++ b/SubCabinetSolution/SubCabinetSolution.csproj
@@ -34,6 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0">
       <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net47\CommonServiceLocator.dll</HintPath>
       <Private>True</Private>
@@ -50,11 +54,32 @@
       <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.19.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604">
+      <HintPath>..\packages\Google.Protobuf.3.19.4\lib\net45\Google.Protobuf.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.1.2.6\lib\net46\K4os.Compression.LZ4.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4.Streams, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.Streams.1.2.6\lib\net46\K4os.Compression.LZ4.Streams.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Hash.xxHash, Version=1.0.6.0, Culture=neutral, PublicKeyToken=32cd54395057cec3">
+      <HintPath>..\packages\K4os.Hash.xxHash.1.0.6\lib\net46\K4os.Hash.xxHash.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.5.0.0\lib\net461\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="mscorlib" />
+    <Reference Include="MySql.Data, Version=8.0.30.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\MySql.Data.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
       <HintPath>..\packages\Newtonsoft.Json.13.0.2-beta1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
@@ -80,8 +105,13 @@
       <HintPath>..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.ComponentModel" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
       <Private>True</Private>
@@ -107,6 +137,7 @@
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Transactions" />
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
@@ -119,9 +150,17 @@
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="Ubiety.Dns.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\Ubiety.Dns.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="ZstdNet, Version=1.4.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\ZstdNet.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -129,6 +168,7 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Model\PublicKeyModel.cs" />
+    <Compile Include="Utils\DataBaseManager.cs" />
     <Compile Include="Utils\HttpRequestHandler.cs" />
     <Compile Include="Utils\LocalConstant.cs" />
     <Compile Include="Utils\PasswordBindingHelper.cs" />
diff --git a/SubCabinetSolution/Utils/DataBaseManager.cs b/SubCabinetSolution/Utils/DataBaseManager.cs
new file mode 100644
index 0000000..21137e1
--- /dev/null
+++ b/SubCabinetSolution/Utils/DataBaseManager.cs
@@ -0,0 +1,21 @@
+using MySql.Data.MySqlClient;
+
+namespace SubCabinetSolution.Utils
+{
+    public class DataBaseManager
+    {
+        private static DataBaseManager _dataBase;
+
+        public static DataBaseManager GetInstance()
+        {
+            return _dataBase ?? (_dataBase = new DataBaseManager());
+        }
+
+        public MySqlConnection GetConnection()
+        {
+            MySqlConnection connection = new MySqlConnection(LocalConstant.MysqlConfig);
+            connection.Open();
+            return connection;
+        }
+    }
+}
\ No newline at end of file
diff --git a/SubCabinetSolution/Utils/LocalConstant.cs b/SubCabinetSolution/Utils/LocalConstant.cs
index 3051ea5..5955060 100644
--- a/SubCabinetSolution/Utils/LocalConstant.cs
+++ b/SubCabinetSolution/Utils/LocalConstant.cs
@@ -3,5 +3,8 @@
     public static class LocalConstant
     {
         public const string BaseHttpUrl = "http://111.198.10.15:11311";
+
+        public const string MysqlConfig =
+            "server=111.198.10.15;port=11336;Database=casic_mobile_shelter;username=root;password=Casic203;";
     }
 }
\ No newline at end of file
diff --git a/SubCabinetSolution/ViewModel/MainViewModel.cs b/SubCabinetSolution/ViewModel/MainViewModel.cs
index a54218b..67a6f63 100644
--- a/SubCabinetSolution/ViewModel/MainViewModel.cs
+++ b/SubCabinetSolution/ViewModel/MainViewModel.cs
@@ -1,9 +1,9 @@
+using System.Data;
 using System.Diagnostics;
 using System.Windows;
 using GalaSoft.MvvmLight;
 using GalaSoft.MvvmLight.Command;
-using Newtonsoft.Json;
-using SubCabinetSolution.Model;
+using MySql.Data.MySqlClient;
 using SubCabinetSolution.Utils;
 
 namespace SubCabinetSolution.ViewModel
@@ -43,12 +43,14 @@
         public RelayCommand LoginToMainCommand { get; set; }
         public string VersionName { get; set; }
 
+        private MySqlConnection connection;
+
         /// <summary>
         /// Initializes a new instance of the MainViewModel class.
         /// </summary>
         public MainViewModel()
         {
-            
+            this.connection = DataBaseManager.GetInstance().GetConnection();
             this.LoginToMainCommand = new RelayCommand(Login);
             this.VersionName = "版本号 Ver " + Application.ResourceAssembly.GetName().Version;
         }
@@ -72,8 +74,30 @@
             // string publicKey = HttpRequestHandler.GetPublicKey(LocalConstant.BaseHttpUrl + "/config/baseConfig");
             // PublicKeyModel keyModel = JsonConvert.DeserializeObject<PublicKeyModel>(publicKey);
             // Debug.WriteLine(keyModel.data.publicKey);
-            
-            
+
+            if (connection.State == ConnectionState.Open)
+            {
+                string selectUser = "select * from sys_user";
+                MySqlCommand cmd = new MySqlCommand(selectUser, connection);
+                MySqlDataReader reader = cmd.ExecuteReader();
+                while (reader.Read())
+                {
+                    string account = reader.GetString("ACCOUNT");
+                    string secretKey = reader.GetString("PASSWORD"); //被加盐之后的密码
+                    // 解码得到密码
+                    if (account != userName || secretKey != userPassword) continue;
+                    MessageBox.Show("登录成功", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
+                    reader.Close();
+                    return;
+                }
+
+                MessageBox.Show("账号或者密码错误，无法登录", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
+                reader.Close();
+            }
+            else
+            {
+                MessageBox.Show("数据库连接异常，请检查数据库配置", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
         }
     }
 }
\ No newline at end of file

diff --git a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx b/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
deleted file mode 100644
index 8215540..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/60f96239-a4ce-4baf-8c6c-4ec562af8357.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
new file mode 100644
index 0000000..5c61392
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/8ce3bcd5-2fdb-4151-a4a8-35cef80a5d18.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx b/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
deleted file mode 100644
index c573253..0000000
--- a/.vs/SubCabinetSolution/FileContentIndex/9e0e7f83-5214-44fe-a97a-f4e7901c523c.vsidx
+++ /dev/null
Binary files differ
diff --git a/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
new file mode 100644
index 0000000..3a88d11
--- /dev/null
+++ b/.vs/SubCabinetSolution/FileContentIndex/d1c96c45-6c51-4d35-80c0-eb2b9c43ed44.vsidx
Binary files differ
diff --git a/.vs/SubCabinetSolution/v17/.suo b/.vs/SubCabinetSolution/v17/.suo
index f236e9b..0f5aea6 100644
--- a/.vs/SubCabinetSolution/v17/.suo
+++ b/.vs/SubCabinetSolution/v17/.suo
Binary files differ
diff --git a/SubCabinetSolution/SubCabinetSolution.csproj b/SubCabinetSolution/SubCabinetSolution.csproj
index cb5532c..953c042 100644
--- a/SubCabinetSolution/SubCabinetSolution.csproj
+++ b/SubCabinetSolution/SubCabinetSolution.csproj
@@ -34,6 +34,10 @@
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
+    <Reference Include="BouncyCastle.Crypto, Version=1.9.0.0, Culture=neutral, PublicKeyToken=0e99375e54769942">
+      <HintPath>..\packages\Portable.BouncyCastle.1.9.0\lib\net40\BouncyCastle.Crypto.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="CommonServiceLocator, Version=2.0.2.0, Culture=neutral, PublicKeyToken=489b6accfaf20ef0">
       <HintPath>..\packages\CommonServiceLocator.2.0.2\lib\net47\CommonServiceLocator.dll</HintPath>
       <Private>True</Private>
@@ -50,11 +54,32 @@
       <HintPath>..\packages\MvvmLightLibs.5.4.1.1\lib\net45\GalaSoft.MvvmLight.Platform.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.19.4.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604">
+      <HintPath>..\packages\Google.Protobuf.3.19.4\lib\net45\Google.Protobuf.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.1.2.6\lib\net46\K4os.Compression.LZ4.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Compression.LZ4.Streams, Version=1.2.6.0, Culture=neutral, PublicKeyToken=2186fa9121ef231d">
+      <HintPath>..\packages\K4os.Compression.LZ4.Streams.1.2.6\lib\net46\K4os.Compression.LZ4.Streams.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
+    <Reference Include="K4os.Hash.xxHash, Version=1.0.6.0, Culture=neutral, PublicKeyToken=32cd54395057cec3">
+      <HintPath>..\packages\K4os.Hash.xxHash.1.0.6\lib\net46\K4os.Hash.xxHash.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Microsoft.Bcl.AsyncInterfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\Microsoft.Bcl.AsyncInterfaces.5.0.0\lib\net461\Microsoft.Bcl.AsyncInterfaces.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="mscorlib" />
+    <Reference Include="MySql.Data, Version=8.0.30.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\MySql.Data.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed">
       <HintPath>..\packages\Newtonsoft.Json.13.0.2-beta1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
@@ -80,8 +105,13 @@
       <HintPath>..\packages\System.Buffers.4.5.1\lib\net461\System.Buffers.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.ComponentModel" />
+    <Reference Include="System.ComponentModel.DataAnnotations" />
+    <Reference Include="System.Configuration" />
+    <Reference Include="System.Configuration.Install" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
+    <Reference Include="System.Management" />
     <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.Memory.4.5.4\lib\net461\System.Memory.dll</HintPath>
       <Private>True</Private>
@@ -107,6 +137,7 @@
       <HintPath>..\packages\System.Threading.Tasks.Extensions.4.5.4\lib\net461\System.Threading.Tasks.Extensions.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="System.Transactions" />
     <Reference Include="System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51">
       <HintPath>..\packages\System.ValueTuple.4.5.0\lib\net47\System.ValueTuple.dll</HintPath>
       <Private>True</Private>
@@ -119,9 +150,17 @@
     <Reference Include="System.Xaml">
       <RequiredTargetFramework>4.0</RequiredTargetFramework>
     </Reference>
+    <Reference Include="Ubiety.Dns.Core, Version=2.2.1.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\Ubiety.Dns.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="WindowsBase" />
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
+    <Reference Include="ZstdNet, Version=1.4.5.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d">
+      <HintPath>..\packages\MySql.Data.8.0.30\lib\net48\ZstdNet.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <ApplicationDefinition Include="App.xaml">
@@ -129,6 +168,7 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Model\PublicKeyModel.cs" />
+    <Compile Include="Utils\DataBaseManager.cs" />
     <Compile Include="Utils\HttpRequestHandler.cs" />
     <Compile Include="Utils\LocalConstant.cs" />
     <Compile Include="Utils\PasswordBindingHelper.cs" />
diff --git a/SubCabinetSolution/Utils/DataBaseManager.cs b/SubCabinetSolution/Utils/DataBaseManager.cs
new file mode 100644
index 0000000..21137e1
--- /dev/null
+++ b/SubCabinetSolution/Utils/DataBaseManager.cs
@@ -0,0 +1,21 @@
+using MySql.Data.MySqlClient;
+
+namespace SubCabinetSolution.Utils
+{
+    public class DataBaseManager
+    {
+        private static DataBaseManager _dataBase;
+
+        public static DataBaseManager GetInstance()
+        {
+            return _dataBase ?? (_dataBase = new DataBaseManager());
+        }
+
+        public MySqlConnection GetConnection()
+        {
+            MySqlConnection connection = new MySqlConnection(LocalConstant.MysqlConfig);
+            connection.Open();
+            return connection;
+        }
+    }
+}
\ No newline at end of file
diff --git a/SubCabinetSolution/Utils/LocalConstant.cs b/SubCabinetSolution/Utils/LocalConstant.cs
index 3051ea5..5955060 100644
--- a/SubCabinetSolution/Utils/LocalConstant.cs
+++ b/SubCabinetSolution/Utils/LocalConstant.cs
@@ -3,5 +3,8 @@
     public static class LocalConstant
     {
         public const string BaseHttpUrl = "http://111.198.10.15:11311";
+
+        public const string MysqlConfig =
+            "server=111.198.10.15;port=11336;Database=casic_mobile_shelter;username=root;password=Casic203;";
     }
 }
\ No newline at end of file
diff --git a/SubCabinetSolution/ViewModel/MainViewModel.cs b/SubCabinetSolution/ViewModel/MainViewModel.cs
index a54218b..67a6f63 100644
--- a/SubCabinetSolution/ViewModel/MainViewModel.cs
+++ b/SubCabinetSolution/ViewModel/MainViewModel.cs
@@ -1,9 +1,9 @@
+using System.Data;
 using System.Diagnostics;
 using System.Windows;
 using GalaSoft.MvvmLight;
 using GalaSoft.MvvmLight.Command;
-using Newtonsoft.Json;
-using SubCabinetSolution.Model;
+using MySql.Data.MySqlClient;
 using SubCabinetSolution.Utils;
 
 namespace SubCabinetSolution.ViewModel
@@ -43,12 +43,14 @@
         public RelayCommand LoginToMainCommand { get; set; }
         public string VersionName { get; set; }
 
+        private MySqlConnection connection;
+
         /// <summary>
         /// Initializes a new instance of the MainViewModel class.
         /// </summary>
         public MainViewModel()
         {
-            
+            this.connection = DataBaseManager.GetInstance().GetConnection();
             this.LoginToMainCommand = new RelayCommand(Login);
             this.VersionName = "版本号 Ver " + Application.ResourceAssembly.GetName().Version;
         }
@@ -72,8 +74,30 @@
             // string publicKey = HttpRequestHandler.GetPublicKey(LocalConstant.BaseHttpUrl + "/config/baseConfig");
             // PublicKeyModel keyModel = JsonConvert.DeserializeObject<PublicKeyModel>(publicKey);
             // Debug.WriteLine(keyModel.data.publicKey);
-            
-            
+
+            if (connection.State == ConnectionState.Open)
+            {
+                string selectUser = "select * from sys_user";
+                MySqlCommand cmd = new MySqlCommand(selectUser, connection);
+                MySqlDataReader reader = cmd.ExecuteReader();
+                while (reader.Read())
+                {
+                    string account = reader.GetString("ACCOUNT");
+                    string secretKey = reader.GetString("PASSWORD"); //被加盐之后的密码
+                    // 解码得到密码
+                    if (account != userName || secretKey != userPassword) continue;
+                    MessageBox.Show("登录成功", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
+                    reader.Close();
+                    return;
+                }
+
+                MessageBox.Show("账号或者密码错误，无法登录", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
+                reader.Close();
+            }
+            else
+            {
+                MessageBox.Show("数据库连接异常，请检查数据库配置", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
+            }
         }
     }
 }
\ No newline at end of file
diff --git a/SubCabinetSolution/packages.config b/SubCabinetSolution/packages.config
index a7b6845..30fa433 100644
--- a/SubCabinetSolution/packages.config
+++ b/SubCabinetSolution/packages.config
@@ -1,10 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="CommonServiceLocator" version="2.0.2" targetFramework="net48" />
+  <package id="Google.Protobuf" version="3.19.4" targetFramework="net48" />
+  <package id="K4os.Compression.LZ4" version="1.2.6" targetFramework="net48" />
+  <package id="K4os.Compression.LZ4.Streams" version="1.2.6" targetFramework="net48" />
+  <package id="K4os.Hash.xxHash" version="1.0.6" targetFramework="net48" />
   <package id="Microsoft.Bcl.AsyncInterfaces" version="5.0.0" targetFramework="net48" />
   <package id="MvvmLight" version="5.4.1.1" targetFramework="net48" />
   <package id="MvvmLightLibs" version="5.4.1.1" targetFramework="net48" />
+  <package id="MySql.Data" version="8.0.30" targetFramework="net48" />
   <package id="Newtonsoft.Json" version="13.0.2-beta1" targetFramework="net48" />
+  <package id="Portable.BouncyCastle" version="1.9.0" targetFramework="net48" />
   <package id="SQLitePCLRaw.bundle_green" version="2.0.4" targetFramework="net48" />
   <package id="SQLitePCLRaw.core" version="2.0.4" targetFramework="net48" />
   <package id="SQLitePCLRaw.lib.e_sqlite3" version="2.0.4" targetFramework="net48" />