chore: 首次簽入 Thinkyu ASP.NET 專案

- 加入 Visual Studio / ASP.NET .gitignore - 排除建置輸出、IDE 設定、NuGet packages、大型 MSI 安裝檔
2026-09-10 09:42:37 +08:00
commit 577060bc78
2496 changed files with 501389 additions and 0 deletions
@@ -0,0 +1,80 @@
+using System;
+using System.Collections.Generic;
+using System.Web;
+using System.Text;
+
+namespace 報到系統
+{
+  public class EncDec
+  {
+    /// <summary>
+    /// WLIB 新版密碼的加密函數
+    /// </summary>
+    /// <param name="S">欲加密之密碼字串，最大長度 8 位，僅可包含A-Z、a-z、0-9</param>
+    /// <returns>加密後之密碼字串</returns>
+    public static string KeyEnc(string S)
+    {
+      int k1 = 0;
+      int k2 = 0;
+      int i, j;
+      Random rnd = new Random(DateTime.UtcNow.AddHours(8).Millisecond);
+      byte[] inBuf = new byte[8];
+      byte[] outBuf = new byte[10];
+      string tmp;
+
+      while (true)
+      {
+        k1 = rnd.Next(31);
+        k2 = rnd.Next(31);
+        outBuf[0] = (byte)(k1 + 44);
+        outBuf[9] = (byte)(k2 + 66);
+
+        if (S.Length < 8)
+          inBuf = Encoding.ASCII.GetBytes(S.PadRight(8));
+        else
+          inBuf = Encoding.ASCII.GetBytes(S);
+
+        for (i = 1; i <= 8; i++)
+        {
+          j = (k1 % 31) + i;
+          j = ((k2 + j) % 31) + 1;
+
+          outBuf[i] = (byte)(inBuf[i - 1] ^ j);
+        }
+        tmp = Encoding.ASCII.GetString(outBuf);
+        if (tmp.IndexOf('\'') < 0 && tmp.IndexOf('"') < 0)
+          break;
+      }
+      return tmp;
+    }
+
+    /// <summary>
+    /// WLIB 新版密碼的解密函數
+    /// </summary>
+    /// <param name="S">欲解密之密碼字串，固定 10 位</param>
+    /// <returns>解密後之密碼字串。若參數 S 長度不是 10 位，則傳回".." + S + ".."</returns>
+    public static string KeyDec(string S)
+    {
+      int i, j;
+      int Key1, Key2;
+      byte[] inBuf;
+      byte[] outBuf = new byte[8];
+
+      if (S.Length != 10)
+        return ".." + S + "..";
+
+      //解密
+      inBuf = Encoding.ASCII.GetBytes(S);
+      Key1 = inBuf[0] - 44;
+      Key2 = inBuf[9] - 66;
+
+      for (i = 1; i <= 8; i++)
+      {
+        j = Key1 % 31 + i;
+        j = (Key2 + j) % 31 + 1;
+        outBuf[i - 1] = (byte)(inBuf[i] ^ j);
+      }
+      return Encoding.ASCII.GetString(outBuf).Trim();
+    }
+  }
+}