diff --git a/Program/Common/Auth/APIHeaderMiddleware.cs b/Program/Common/Auth/APIHeaderMiddleware.cs
index d0d8bac..1983e08 100644
--- a/Program/Common/Auth/APIHeaderMiddleware.cs
+++ b/Program/Common/Auth/APIHeaderMiddleware.cs
@@ -22,11 +22,11 @@ public class HeaderConfigRepository : IHeaderConfig
         _dbContext = dbContext;
     }
 
-    public async Task<string> GetExpectedHeaderValueAsync(string headerName)
+    public async Task<string> GetExpectedHeaderValueAsync(string headerValue)
     {
         var config = await _dbContext.APIHeader
-            .FirstOrDefaultAsync(h => h.h_key == headerName);
-        return config?.h_value ?? string.Empty;
+            .FirstOrDefaultAsync(h => h.h_value == headerValue);
+        return config?.h_key ?? string.Empty;
     }
     
 }
@@ -65,8 +65,8 @@ public class APIHeaderMiddleware
             if (context.Request.Headers.TryGetValue(header, out var headerValue) &&
                 !string.IsNullOrWhiteSpace(headerValue))
             {
-                var dbValue = await headerConfig.GetExpectedHeaderValueAsync(header);
-                if (headerValue == dbValue)
+                var keyName = await headerConfig.GetExpectedHeaderValueAsync(headerValue);
+                if (keyName != string.Empty)
                 {
                     valid = true;
                     break;
diff --git a/Program/V1/Controllers/AppController.cs b/Program/V1/Controllers/AppController.cs
index 0b85eb0..c9e1a83 100644
--- a/Program/V1/Controllers/AppController.cs
+++ b/Program/V1/Controllers/AppController.cs
@@ -78,6 +78,7 @@ public class AppController : ControllerBase
                     {
                         _logger.LogInformation($"[{summary}] : 해당 키 유효기간 경과");
                         apiHeader.h_value = headerValue;
+                        apiHeader.connect_date = DateTime.Now;
                         
                         if (await _repositoryService.SaveData<APIHeader>(apiHeader))
                         {
@@ -123,7 +124,7 @@ public class AppController : ControllerBase
                         var logProject = new LogProject
                         {
                             create_date = DateTime.Now ,
-                            log = $"[{summary}] : 해당 키 유효시간 만료로 인한 새 키 부여"
+                            log = $"[{summary}] : 새로운 등록으로 인한 새 키 부여"
                         };
                         // 이거 로그 저장 안되는거 확인!
                         _logger.LogInformation($"[{summary}] : {logProject.log}");
@@ -151,7 +152,8 @@ public class AppController : ControllerBase
         }
     }
 
-    public string KeyGenerator(string combineText)
+    [NonAction]
+    private string KeyGenerator(string combineText)
     {
         using (SHA256 sha256 = SHA256.Create())
         {
@@ -162,20 +164,20 @@ public class AppController : ControllerBase
 
     [HttpGet("version")]
     [CustomOperation("앱 버전 확인","앱 버전을 확인해서 업데이트 여부 판단", "시스템")]
-    public IActionResult GetVersionData(string type)
+    public async Task<IActionResult> GetVersionData(string type)
     {
         if (string.IsNullOrEmpty(type))
         {
-            return BadRequest(APIResponse.InvalidInputError);
+            return BadRequest(APIResponse.InvalidInputError());
         }
 
         try
         {
-            var version = _dbContext.Version.FirstOrDefault(v => v.os_type == (type == "I" ? "VO01" : "VO02"));
+            var version = await _dbContext.Version.FirstOrDefaultAsync(v => v.os_type == (type == "I" ? "VO01" : "VO02"));
             
             if (version == null)
             {
-                return NotFound(APIResponse.NotFoundError);
+                return NotFound(APIResponse.NotFoundError());
             }
 
             var response = new APIResponseStatus<Version>
@@ -203,7 +205,7 @@ public class AppController : ControllerBase
         catch (Exception ex)
         {
             Console.WriteLine($"{ex.Message}\n{ex.StackTrace}");
-            return StatusCode(500, APIResponse.UnknownError);
+            return StatusCode(500, APIResponse.UnknownError());
         }
     }