diff --git a/Projects/NetStandard/KmsProxy.GUI/Form1.Designer.cs b/Projects/NetStandard/KmsProxy.GUI/Form1.Designer.cs
index da9c18a..1e338ac 100644
--- a/Projects/NetStandard/KmsProxy.GUI/Form1.Designer.cs
+++ b/Projects/NetStandard/KmsProxy.GUI/Form1.Designer.cs
@@ -115,6 +115,8 @@
             this.richTextBox21 = new System.Windows.Forms.RichTextBox();
             this.button11 = new System.Windows.Forms.Button();
             this.richTextBox22 = new System.Windows.Forms.RichTextBox();
+            this.textBox1 = new System.Windows.Forms.TextBox();
+            this.label36 = new System.Windows.Forms.Label();
             this.panel1.SuspendLayout();
             this.tabControl1.SuspendLayout();
             this.tabPage1.SuspendLayout();
@@ -136,6 +138,8 @@
             // 
             // panel1
             // 
+            this.panel1.Controls.Add(this.label36);
+            this.panel1.Controls.Add(this.textBox1);
             this.panel1.Controls.Add(this.textPort);
             this.panel1.Controls.Add(this.label4);
             this.panel1.Controls.Add(this.textHost);
@@ -992,6 +996,23 @@
             this.richTextBox22.TabIndex = 0;
             this.richTextBox22.Text = "";
             // 
+            // textBox1
+            // 
+            this.textBox1.Location = new System.Drawing.Point(590, 19);
+            this.textBox1.Name = "textBox1";
+            this.textBox1.Size = new System.Drawing.Size(399, 21);
+            this.textBox1.TabIndex = 4;
+            this.textBox1.Text = "333735413051493048424d55000300010000000000000000000000";
+            // 
+            // label36
+            // 
+            this.label36.AutoSize = true;
+            this.label36.Location = new System.Drawing.Point(492, 24);
+            this.label36.Name = "label36";
+            this.label36.Size = new System.Drawing.Size(92, 12);
+            this.label36.TabIndex = 5;
+            this.label36.Text = "Example EcuID";
+            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(7F, 12F);
@@ -1123,6 +1144,8 @@
         private System.Windows.Forms.RichTextBox richTextBox21;
         private System.Windows.Forms.Button button11;
         private System.Windows.Forms.RichTextBox richTextBox22;
+        private System.Windows.Forms.Label label36;
+        private System.Windows.Forms.TextBox textBox1;
     }
 }
 
diff --git a/Projects/NetStandard/KmsProxy/Models/Packet.cs b/Projects/NetStandard/KmsProxy/Models/Packet.cs
index 0f54de0..fc4d104 100644
--- a/Projects/NetStandard/KmsProxy/Models/Packet.cs
+++ b/Projects/NetStandard/KmsProxy/Models/Packet.cs
@@ -9,9 +9,9 @@ namespace KmsProxy.Models
     {
         public class Request_SupplierEcuID
         {
-            public string EcuType { get; set; } = string.Empty;
-            public string Phase { get; set; } = string.Empty;
-            public string SupplierID { get; set; } = string.Empty;
+            public string EcuType { get; set; } = "01";
+            public string Phase { get; set; } = "Dev";
+            public string SupplierID { get; set; } = "03";
             public string EcuID { get; set; } = string.Empty;
             public string Serial { get; set; } = string.Empty;
         }
@@ -26,7 +26,7 @@ namespace KmsProxy.Models
     {
         public class Request_SupplierKeyProvisioning
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "EcuMasterKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
         }
@@ -50,7 +50,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeyProvisioning_Result
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SupplierSymmKey";
             public string EcuID { get; set; } = string.Empty;
             public string ResultMessage { get; set; } = string.Empty;
             public string ResultStatus { get; set; } = string.Empty;
@@ -65,7 +65,7 @@ namespace KmsProxy.Models
     {
         public class Request_SupplierKeyProvisioning
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SupplierSymmKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
         }
@@ -88,7 +88,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeyProvisioning_Result
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SupplierSymmKey";
             public string EcuID { get; set; } = string.Empty;
             public string ResultMessage { get; set; } = string.Empty;
             public string ResultStatus { get; set; } = string.Empty;
@@ -100,7 +100,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeySyncValue
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SupplierSymmKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
         }
@@ -121,7 +121,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeySyncValue_Result
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SupplierSymmKey";
             public string EcuID { get; set; } = string.Empty;
             public string ResultMessage { get; set; } = string.Empty;
             public string ResultStatus { get; set; } = string.Empty;
@@ -136,7 +136,7 @@ namespace KmsProxy.Models
     {
         public class Request_SupplierKeyProvisioning
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SecOCKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
             public string SupplierSecretKey { get; set; } = string.Empty;
@@ -163,7 +163,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeyProvisioning_Result
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SecOCKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
             public string ResultMessage { get; set; } = string.Empty;
@@ -176,7 +176,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeySyncValue
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SecOCKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
         }
@@ -197,7 +197,7 @@ namespace KmsProxy.Models
         //
         public class Request_SupplierKeySyncValue_Result
         {
-            public string ProvisioningType { get; set; } = string.Empty;
+            public string ProvisioningType { get; set; } = "SecOCKey";
             public string EcuID { get; set; } = string.Empty;
             public string KeyID { get; set; } = string.Empty;
             public string ResultMessage { get; set; } = string.Empty;
diff --git a/Projects/NetStandard/PlayGround.NetFramework/Program.cs b/Projects/NetStandard/PlayGround.NetFramework/Program.cs
index b5028a9..224c9e7 100644
--- a/Projects/NetStandard/PlayGround.NetFramework/Program.cs
+++ b/Projects/NetStandard/PlayGround.NetFramework/Program.cs
@@ -6,44 +6,56 @@ using System.Globalization;
 using System.Threading.Tasks;
 
 namespace PlayGround.NetFramework
-{
-    public static class Date
-    {
-        public static string ToKst24String(DateTimeOffset dateTime)
-        {
-            var kstZone = TimeZoneInfo.FindSystemTimeZoneById("Korea Standard Time");
-            var kst = TimeZoneInfo.ConvertTime(dateTime, kstZone);
-
-            return kst.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
-        }
-    }
+{  
 
     internal class Program
     {
+        public static string SetConvertDateTime(string strGetConvertText)
+        {
+            //입력문자열이 DateTime으로 변환 가능한 표준일때.
+            if(DateTime.TryParse(strGetConvertText, out var convertDate) == true)
+            {
+                Console.WriteLine("[SetConvertDateTime] Convert DateTime Format Success.");
+                return convertDate.ToString("yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture);
+            }
+
+            //입력문자열이 DateTime 표준이 아닐때 그대로 리턴.
+            Console.WriteLine("[SetConvertDateTime] Convert DateTime Format Failed.");
+            return strGetConvertText;
+        }
+                
+        public static string SetConvertDateTime(DateTime dateTime)
+        {
+            return(SetConvertDateTime(dateTime.ToString()));
+        }
+
         static void Main(string[] args)
         {
-            // 각 국가 TimeZone 가져오기
-            var indiaZone = TimeZoneInfo.FindSystemTimeZoneById("India Standard Time");
-            var vietnamZone = TimeZoneInfo.FindSystemTimeZoneById("SE Asia Standard Time");
-            var usaEasternZone = TimeZoneInfo.FindSystemTimeZoneById("Eastern Standard Time");
-            var kstZone = TimeZoneInfo.FindSystemTimeZoneById("Korea Standard Time");
+            //string input
+            DateTime now = DateTime.Now;
+            string convertDate = SetConvertDateTime(now.ToString());
+            Console.WriteLine($"DateTime.Now: {now}");
+            Console.WriteLine($"DateTime.Now.Convert: {convertDate}");
+            Console.WriteLine("");
 
-            // 각 국가 현재 시간 생성
-            DateTimeOffset indiaNow = TimeZoneInfo.ConvertTime(DateTimeOffset.UtcNow, indiaZone);
-            DateTimeOffset vietnamNow = TimeZoneInfo.ConvertTime(DateTimeOffset.UtcNow, vietnamZone);
-            DateTimeOffset usaNow = TimeZoneInfo.ConvertTime(DateTimeOffset.UtcNow, usaEasternZone);
+            string now2 = DateTime.Now.ToString("HH:mm:ss MM-dd-yyyy");
+            string convertDate2 = SetConvertDateTime(now2);
+            Console.WriteLine($"DateTime.Now2: {now2}");
+            Console.WriteLine($"DateTime.Now.Convert2: {convertDate2}");
+            Console.WriteLine("");
 
-            Console.WriteLine("=== 원본 시간 ===");
-            Console.WriteLine($"India   : {indiaNow:yyyy-MM-dd HH:mm:ss}");
-            Console.WriteLine($"Vietnam : {vietnamNow:yyyy-MM-dd HH:mm:ss}");
-            Console.WriteLine($"USA(ET) : {usaNow:yyyy-MM-dd HH:mm:ss}");
+            string now3 = "3/3/2026 1:29:43 PM";
+            string convertDate3 = SetConvertDateTime(now3);
+            Console.WriteLine($"DateTime.Now3: {now3}");
+            Console.WriteLine($"DateTime.Now.Convert3: {convertDate3}");
+            Console.WriteLine("");
 
-            Console.WriteLine();
-            Console.WriteLine("=== KST 변환 ===");
-
-            Console.WriteLine($"India → KST   : {Date.ToKst24String(indiaNow)}");
-            Console.WriteLine($"Vietnam → KST : {Date.ToKst24String(vietnamNow)}");
-            Console.WriteLine($"USA → KST     : {Date.ToKst24String(usaNow)}");
+            //datetime input
+            var now4 = DateTime.Now;
+            string convertDate4 = SetConvertDateTime(now4);
+            Console.WriteLine($"DateTime.Now4: {now4}");
+            Console.WriteLine($"DateTime.Now.Convert4: {convertDate4}");
+            Console.WriteLine("");
 
             return;