diff --git a/Form1.Designer.cs b/Form1.Designer.cs
index 33cc1b0..4886942 100644
--- a/Form1.Designer.cs
+++ b/Form1.Designer.cs
@@ -512,28 +512,28 @@ private void InitializeComponent()
             this.noneToolStripMenuItem.Checked = true;
             this.noneToolStripMenuItem.CheckState = System.Windows.Forms.CheckState.Checked;
             this.noneToolStripMenuItem.Name = "noneToolStripMenuItem";
-            this.noneToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.noneToolStripMenuItem.Size = new System.Drawing.Size(163, 22);
             this.noneToolStripMenuItem.Text = "None";
             this.noneToolStripMenuItem.Click += new System.EventHandler(this.noneToolStripMenuItem_Click);
             // 
             // simpleLearningToolStripMenuItem
             // 
             this.simpleLearningToolStripMenuItem.Name = "simpleLearningToolStripMenuItem";
-            this.simpleLearningToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.simpleLearningToolStripMenuItem.Size = new System.Drawing.Size(163, 22);
             this.simpleLearningToolStripMenuItem.Text = "Simple Learning";
             this.simpleLearningToolStripMenuItem.Click += new System.EventHandler(this.simpleLearningToolStripMenuItem_Click);
             // 
             // normalLearningToolStripMenuItem
             // 
             this.normalLearningToolStripMenuItem.Name = "normalLearningToolStripMenuItem";
-            this.normalLearningToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.normalLearningToolStripMenuItem.Size = new System.Drawing.Size(163, 22);
             this.normalLearningToolStripMenuItem.Text = "Normal Learning";
             this.normalLearningToolStripMenuItem.Click += new System.EventHandler(this.normalLearningToolStripMenuItem_Click);
             // 
             // secureLearnToolStripMenuItem
             // 
             this.secureLearnToolStripMenuItem.Name = "secureLearnToolStripMenuItem";
-            this.secureLearnToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.secureLearnToolStripMenuItem.Size = new System.Drawing.Size(163, 22);
             this.secureLearnToolStripMenuItem.Text = "Secure Learn";
             this.secureLearnToolStripMenuItem.Click += new System.EventHandler(this.secureLearnToolStripMenuItem_Click);
             // 
@@ -724,7 +724,7 @@ private void InitializeComponent()
             this.MainMenuStrip = this.menuStrip1;
             this.MinimumSize = new System.Drawing.Size(665, 445);
             this.Name = "Form1";
-            this.Text = "HCS301 Programmer V0.2.4";
+            this.Text = "HCS301 Programmer V0.2.5";
             this.groupBox1.ResumeLayout(false);
             this.groupBox1.PerformLayout();
             this.groupBox2.ResumeLayout(false);
diff --git a/Form1.cs b/Form1.cs
index 78a9ac8..b3870ba 100644
--- a/Form1.cs
+++ b/Form1.cs
@@ -1,7 +1,11 @@
 /*
  HCS Programmer Soft
  By Liyanboy74
+
  https://github.com/liyanboy74
+ https://github.com/liyanboy74/KeeLoq
+ https://github.com/hnhkj/documents/tree/master/KEELOQ/docs
+ https://github.com/ihydrad/Keeloq-decrypt/tree/master/readme
 */
 
 using System;
@@ -847,12 +851,13 @@ public ulong gen_normal_key(ulong mf_key,UInt32 seed)
             return ret;
         }
 
-        public ulong gen_secure_key(ulong mf_key,UInt32 seed)
+        public ulong gen_secure_key(ulong mf_key,UInt32 seed,UInt32 ser)
         {
             ulong ret = 0;
 
-            ret = ((mf_key >> 32) ^ 0) << 32;
-            ret |= (mf_key & 0xffffffff) ^ seed;
+            ret = keeloq_decrypt(mf_key, seed, KEELOQ_NROUNDS);
+            ser &= 0x0fffffff;
+            ret |= ((UInt64)keeloq_decrypt(mf_key, ser, KEELOQ_NROUNDS) << 32);
 
             return ret;
         }
@@ -873,7 +878,7 @@ public void mc_clc()
                 }
                 else if(learn_mode==3)
                 {
-                    hash = gen_secure_key(mkey, seed);
+                    hash = gen_secure_key(mkey, seed,ser);
                 }
 
 
diff --git a/Programmer.csproj b/Programmer.csproj
index 315d63c..9901fb3 100644
--- a/Programmer.csproj
+++ b/Programmer.csproj
@@ -7,7 +7,7 @@
     <ProjectGuid>{917791B5-231E-4832-9E8C-FE4E65DAC6FB}</ProjectGuid>
     <OutputType>WinExe</OutputType>
     <RootNamespace>Programmer</RootNamespace>
-    <AssemblyName>HCS301-Programmer-v0.2.4</AssemblyName>
+    <AssemblyName>HCS301-Programmer-v0.2.5</AssemblyName>
     <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
@@ -23,7 +23,7 @@
     <UpdatePeriodically>false</UpdatePeriodically>
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
-    <ApplicationRevision>4</ApplicationRevision>
+    <ApplicationRevision>5</ApplicationRevision>
     <ApplicationVersion>1.0.2.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>