diff --git a/DllMain.h b/DllMain.h
index 9fda55b..50ca012 100644
--- a/DllMain.h
+++ b/DllMain.h
@@ -1,20 +1,22 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2014-2014
+//  EgalTech 2014-2023
 //----------------------------------------------------------------------------
-// File : DllMain.h          Data : 25.02.14          Versione : 1.5b2
+// File : DllMain.h          Data : 29.05.23          Versione : 2.5e3
 // Contenuto : Prototipi funzioni per uso locale della DLL.
 //
 //
 //
 // Modifiche : 25.02.14 DS Creazione modulo.
-//
+//             29.05.23 DS Aggiunte funzioni per chiavi di protezione.
 //
 //----------------------------------------------------------------------------
 
 #pragma once
 
-
 #include "/EgtDev/Include/EgtILogger.h"
+#include <string>
 
 //-----------------------------------------------------------------------------
 ILogger* GetEGnLogger( void) ;
+const std::string& GetEGnKey( void) ;
+bool GetEGnNetHwKey( void) ;
diff --git a/EGnDllMain.cpp b/EGnDllMain.cpp
index 19b45de..8f7231a 100644
--- a/EGnDllMain.cpp
+++ b/EGnDllMain.cpp
@@ -1,22 +1,24 @@
 //----------------------------------------------------------------------------
-//  EgalTech 2013-2013
+//  EgalTech 2013-2023
 //----------------------------------------------------------------------------
-// File : EGnDllMain.cpp       Data : 20.11.13        Versione : 1.3a1
+// File : EGnDllMain.cpp       Data : 29.05.23        Versione : 2.5e3
 // Contenuto : Inizializzazione della DLL.
 //
 //
 //
 // Modifiche : 20.11.13 DS Creazione modulo.
 //             21.11.13 DS Agg. GetEGnVersion.
+//             29.05.23 DS Agg. funzioni per chiave.
 //
 //----------------------------------------------------------------------------
 
 //--------------------------- Include ----------------------------------------
 #include "stdafx.h"
 #include "DllMain.h"
-#include <\EgtDev\Include\EGnDllMain.h>
-#include <\EgtDev\Include\EGnGetModuleVer.h>
-#include <\EgtDev\Include\EgtTrace.h>
+#include "/EgtDev/Include/EGnDllMain.h"
+#include "/EgtDev/Include/EGnGetModuleVer.h"
+#include "/EgtDev/Include/EgtTrace.h"
+#include "/EgtDev/Include/SELkLockId.h"
 
 using namespace std ;
 
@@ -92,3 +94,45 @@ GetEGnLogger( void)
 {
    return s_pLogger ;
 }
+
+//-----------------------------------------------------------------------------
+static string s_sKey ;
+static int s_nKeyType = KEY_LOCK_TYPE_ANY ;
+static bool s_bNetHwKey = false ;
+
+//-----------------------------------------------------------------------------
+void
+SetEGnKey( const string& sKey)
+{
+   s_sKey = sKey ;
+}
+
+//-----------------------------------------------------------------------------
+void
+SetEGnKeyType( int nType)
+{
+   s_nKeyType = nType ;
+}
+
+//-----------------------------------------------------------------------------
+void
+SetEGnNetHwKey( bool bNetHwKey)
+{
+   s_bNetHwKey = bNetHwKey ;
+}
+
+//-----------------------------------------------------------------------------
+const string&
+GetEGnKey( void)
+{
+   SetLockType( s_nKeyType) ;
+   return s_sKey ;
+}
+
+//-----------------------------------------------------------------------------
+bool
+GetEGnNetHwKey( void)
+{
+   SetNetHwKey( s_bNetHwKey) ;
+   return s_bNetHwKey ;
+}
diff --git a/EgtGeneral.rc b/EgtGeneral.rc
index a62a0aa..c10bc09 100644
Binary files a/EgtGeneral.rc and b/EgtGeneral.rc differ
diff --git a/EgtGeneral.vcxproj b/EgtGeneral.vcxproj
index 0d78fd7..c257adb 100644
--- a/EgtGeneral.vcxproj
+++ b/EgtGeneral.vcxproj
@@ -108,7 +108,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;C:\EgtDev\Extern\OxySec\Lib\x32\xnodus32.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <PostBuildEvent>
       <Command>copy $(TargetDir)$(TargetName).pdb \EgtDev\Lib\
@@ -131,7 +131,7 @@ copy $(TargetPath) \EgtProg\DllD32</Command>
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;C:\EgtDev\Extern\OxySec\Lib\x64\xnodus.obj;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <PostBuildEvent>
       <Command>copy $(TargetDir)$(TargetName).pdb \EgtDev\Lib\
@@ -164,7 +164,7 @@ copy $(TargetPath) \EgtProg\DllD64</Command>
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;C:\EgtDev\Extern\OxySec\Lib\x32\xnodus32.obj;%(AdditionalDependencies)</AdditionalDependencies>
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
     <PostBuildEvent>
@@ -198,7 +198,7 @@ copy $(TargetPath) \EgtProg\Dll32</Command>
       <GenerateDebugInformation>false</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>version.lib;shlwapi.lib;Rpcrt4.lib;C:\EgtDev\Extern\OxySec\Lib\x64\xnodus.obj;%(AdditionalDependencies)</AdditionalDependencies>
       <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
     <PostBuildEvent>
@@ -215,6 +215,7 @@ copy $(TargetPath) \EgtProg\Dll64</Command>
     <ClInclude Include="..\Include\EGnDllMain.h" />
     <ClInclude Include="..\Include\EGnEgtUUID.h" />
     <ClInclude Include="..\Include\EGnFileUtils.h" />
+    <ClInclude Include="..\Include\EGnGetKeyData.h" />
     <ClInclude Include="..\Include\EGnGetModuleVer.h" />
     <ClInclude Include="..\Include\EGnLuaAux.h" />
     <ClInclude Include="..\Include\EGnLuaMgr.h" />
@@ -258,6 +259,7 @@ copy $(TargetPath) \EgtProg\Dll64</Command>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="GeyKeyData.cpp" />
     <ClCompile Include="LuaManager.cpp" />
     <ClCompile Include="Scanner.cpp" />
     <ClCompile Include="stdafx.cpp">
diff --git a/EgtGeneral.vcxproj.filters b/EgtGeneral.vcxproj.filters
index b3645ea..88cbc19 100644
--- a/EgtGeneral.vcxproj.filters
+++ b/EgtGeneral.vcxproj.filters
@@ -72,6 +72,9 @@
     <ClInclude Include="..\Include\EGnEgtUUID.h">
       <Filter>File di intestazione</Filter>
     </ClInclude>
+    <ClInclude Include="..\Include\EGnGetKeyData.h">
+      <Filter>File di intestazione</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="stdafx.cpp">
@@ -116,6 +119,9 @@
     <ClCompile Include="Scanner.cpp">
       <Filter>File di origine</Filter>
     </ClCompile>
+    <ClCompile Include="GeyKeyData.cpp">
+      <Filter>File di origine</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EgtGeneral.rc">
diff --git a/GetModuleVer.cpp b/GetModuleVer.cpp
index f0b00fa..8c63535 100644
--- a/GetModuleVer.cpp
+++ b/GetModuleVer.cpp
@@ -84,4 +84,4 @@ bool
 SetCurrentDirectory( const string& sDir)
 {
    return ( SetCurrentDirectoryW( stringtoW( sDir)) != 0) ;
-}
\ No newline at end of file
+}
diff --git a/GeyKeyData.cpp b/GeyKeyData.cpp
new file mode 100644
index 0000000..73ae760
--- /dev/null
+++ b/GeyKeyData.cpp
@@ -0,0 +1,104 @@
+//----------------------------------------------------------------------------
+//  EgalTech 2023-2023
+//----------------------------------------------------------------------------
+// File : GetKeyData.cpp       Data : 29.05.23        Versione : 2.5e3
+// Contenuto : Funzione che restituisce i dati della chiave di protezione.
+//
+//
+//
+// Modifiche : 29.05.23 DS Creazione modulo.
+//
+//
+//----------------------------------------------------------------------------
+
+//--------------------------- Include ----------------------------------------
+#include "stdafx.h"
+#include "DllMain.h"
+#include "/EgtDev/Include/EGnGetKeyData.h"
+#include "/EgtDev/Include/SELkKeyProc.h"
+
+using namespace std ;
+
+//-----------------------------------------------------------------------------
+static int s_nKeyLevRet = - 1;
+static int s_nKeyLev = 0 ;
+static int s_nKeyExpDays = 0 ;
+static int s_nKeyOptRet = - 1;
+static int s_nKeyOpt1 = 0 ;
+static int s_nKeyOpt2 = 0 ;
+static int s_nKeyOptExpDays = 0 ;
+
+//-----------------------------------------------------------------------------
+bool
+SetEGnKeyLevel( int nRet, int nKeyLev, int nKeyExpDays)
+{
+   s_nKeyLevRet = nRet ;
+   s_nKeyLev = nKeyLev ;
+   s_nKeyExpDays = nKeyExpDays ;
+   return true ;
+}
+
+//-----------------------------------------------------------------------------
+int
+GetEGnKeyLevel( int nProd, int nVer, int nLev, int& nKeyLev, int& nKeyExpDays)
+{
+  // Chiave di rete
+   if ( GetEGnNetHwKey()) {
+      int nCurrDay = GetCurrDay() ;
+      int nMinDay = GetMinDay() ;
+      if ( nCurrDay < nMinDay)
+         return KEY_ERR_WRONG_TIME ;
+   }
+   // chiave Hw locale
+   else {
+      int nMyKeyLev, nMyKeyExpDays ;
+      int nRet = GetKeyLevel( GetEGnKey(), nProd, nVer, nLev, nMyKeyLev, nMyKeyExpDays) ;
+      s_nKeyLevRet = nRet ;
+      s_nKeyLev = nMyKeyLev ;
+      s_nKeyExpDays = nMyKeyExpDays ;
+   }
+  // restituzione dati
+   nKeyLev = s_nKeyLev ;
+   nKeyExpDays = s_nKeyExpDays ;
+   return s_nKeyLevRet ;
+}
+
+//-----------------------------------------------------------------------------
+bool
+SetEGnKeyOptions( int nRet, int nKeyOpt1, int nKeyOpt2, int nKeyOptExpDays)
+{
+   s_nKeyOptRet = nRet ;
+   s_nKeyOpt1 = nKeyOpt1 ;
+   s_nKeyOpt2 = nKeyOpt2 ;
+   s_nKeyOptExpDays = nKeyOptExpDays ;
+   return true ;
+}
+
+//-----------------------------------------------------------------------------
+int
+GetEGnKeyOptions( int nProd, int nVer, int nLev, unsigned int& nKeyOpt1, unsigned int& nKeyOpt2, int& nKeyOptExpDays)
+{
+  // Chiave di rete
+   if ( GetEGnNetHwKey()) {
+      int nCurrDay = GetCurrDay() ;
+      int nMinDay = GetMinDay() ;
+      if ( nCurrDay < nMinDay)
+         return KEY_ERR_WRONG_TIME ;
+   }
+   // chiave Hw locale
+   else {
+      unsigned int nMyKeyOpt1, nMyKeyOpt2 ;
+      int nMyKeyOptExpDays ;
+      int nRet = GetKeyOptions( GetEGnKey(), nProd, nVer, nLev, nMyKeyOpt1, nMyKeyOpt2, nMyKeyOptExpDays) ;
+      s_nKeyOptRet = nRet ;
+      s_nKeyOpt1 = nMyKeyOpt1 ;
+      s_nKeyOpt2 = nMyKeyOpt2 ;
+      s_nKeyOptExpDays = nMyKeyOptExpDays ;
+   }
+  // restituzione dati
+   nKeyOpt1 = s_nKeyOpt1 ;
+   nKeyOpt2 = s_nKeyOpt2 ;
+   nKeyOptExpDays = s_nKeyOptExpDays ;
+   return s_nKeyOptRet ;
+}
+
diff --git a/stdafx.h b/stdafx.h
index b0f2732..e11cece 100644
--- a/stdafx.h
+++ b/stdafx.h
@@ -30,3 +30,4 @@
 
 #pragma comment(lib, EGTEXTDIR "zlib/lib/zlib" EGTLIBVER ".lib")
 #pragma comment(lib, EGTEXTDIR "Lua/Lib/Lua54" EGTLIBVER ".lib")
+#pragma comment(lib, EGTLIBDIR "SEgtLock" EGTLIBVER ".lib")