diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..db8f9fe
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+/*.suo
+/*.user
+/*
diff --git a/Form1.vb b/Form1.vb
index 4bb28b1..c7e6ad8 100644
--- a/Form1.vb
+++ b/Form1.vb
@@ -70,6 +70,7 @@ Public Class Form1
         'Next
         Dim yymmdd As String = Format(Me.DateTimePicker1.Value.Date, "yyyy-MM-dd 23:59:59")
         Dim textenc As New EnDec("HAEGWANGSIMP")
+        Dim textHash As Integer = yymmdd.GetHashCode()
         Me.tb_key1.Text = textenc.EncryptData(yymmdd + "|SIMP|" + yymmdd.GetHashCode().ToString())
         Dim Auth As New MyAuth
         'If Auth.check_key1(Me.tb_key1.Text) = False Then
diff --git a/My Project/AssemblyInfo.vb b/My Project/AssemblyInfo.vb
index d3c4373..6fd3b24 100644
--- a/My Project/AssemblyInfo.vb	
+++ b/My Project/AssemblyInfo.vb	
@@ -31,5 +31,5 @@ Imports System.Runtime.InteropServices
 ' 지정되도록 할 수 있습니다.
 ' <Assembly: AssemblyVersion("1.0.*")> 
 
-<Assembly: AssemblyVersion("19.05.05.2100")> 
-<Assembly: AssemblyFileVersion("19.05.05.2100")> 
+<Assembly: AssemblyVersion("19.11.25.2200")> 
+<Assembly: AssemblyFileVersion("19.11.25.200")> 
diff --git a/ReadMe.txt b/ReadMe.txt
new file mode 100644
index 0000000..09b26fb
--- /dev/null
+++ b/ReadMe.txt
@@ -0,0 +1 @@
+191125	chi	64bit에서 32bit로 변경한다. -> 이거에 의해서 hashCode 값이 달라짐
\ No newline at end of file
diff --git a/인증날짜변경.sln b/인증날짜변경.sln
new file mode 100644
index 0000000..aeb804c
--- /dev/null
+++ b/인증날짜변경.sln
@@ -0,0 +1,20 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual Studio 2010
+Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "인증날짜변경", "인증날짜변경.vbproj", "{B0CC37CF-1CE5-42B4-8E4D-863F8D45B2A2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{B0CC37CF-1CE5-42B4-8E4D-863F8D45B2A2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B0CC37CF-1CE5-42B4-8E4D-863F8D45B2A2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B0CC37CF-1CE5-42B4-8E4D-863F8D45B2A2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B0CC37CF-1CE5-42B4-8E4D-863F8D45B2A2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/인증날짜변경.vbproj b/인증날짜변경.vbproj
index 408c375..05bdf67 100644
--- a/인증날짜변경.vbproj
+++ b/인증날짜변경.vbproj
@@ -45,6 +45,7 @@
     <OutputPath>bin\Debug\</OutputPath>
     <DocumentationFile>인증날짜변경.xml</DocumentationFile>
     <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022,42353,42354,42355</NoWarn>
+    <PlatformTarget>x86</PlatformTarget>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -147,6 +148,9 @@
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="ReadMe.txt" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.