1 files changed, 41 insertions, 0 deletions
diff --git a/WinKeyRecover/keyManager/CheckIsValid.cs b/WinKeyRecover/keyManager/CheckIsValid.cs
new file mode 100644
index 0000000..5b6775b
--- /dev/null
+++ b/WinKeyRecover/keyManager/CheckIsValid.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WinKeyRecover
+{
+    internal class CheckIsValid
+    {
+        private string key;
+
+        public bool CheckKey(char[] validChars, string key)
+        {
+            this.key = key.ToUpper();
+
+            if (this.key != string.Empty 
+                && this.key.Length == 29 
+                && this.key.Contains('*')
+                )
+            {
+                for (int i = 0; i < key.Length; i++)
+                {
+                    if (this.key[i] != '-'
+                        && this.key[i] != '*'
+                        && !validChars.Contains(this.key[i]) 
+                        )
+                    {
+                        return false;
+                    }
+                }
+            }
+            else
+            {
+            return false;
+            }
+
+            return true;
+        }
+    }
+}