migrate to new git

2025-08-29 01:27:25 +08:00
parent 946eb9961e
commit af2c152ef6
8623 changed files with 1000453 additions and 1 deletions
--- a/web/App_Code/encrypt.cs
+++ b/web/App_Code/encrypt.cs
@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Web;
+using System.Web.Security;
+
+/// <summary>
+/// 加密相關
+/// </summary>
+/// 
+
+namespace MyWeb
+{
+    public class encrypt
+    {
+        public string MD5(string str, int bits = 32)   //MD5加密
+        {
+            if (bits == 16)
+            {
+                return FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower().Substring(8, 16);
+            }
+            else
+            {
+                return FormsAuthentication.HashPasswordForStoringInConfigFile(str, "MD5").ToLower();
+            }
+        }
+
+        public string SHA1(string SourceStr)    //SHA1加密
+        {
+            return FormsAuthentication.HashPasswordForStoringInConfigFile(SourceStr, "SHA1");
+        }
+
+        private byte[] Keys = { 0xEF, 0xAB, 0x56, 0x78, 0x90, 0x34, 0xCD, 0x12 };
+
+        public string EncryptDes(string SourceStr, string skey)       //使用標準DES對稱加密, skey請帶入8位數自訂KEY
+        {
+            try
+            {
+                byte[] rgbKey = Encoding.UTF8.GetBytes(skey.Substring(0, 8));
+                byte[] rgbIV = Keys;
+                byte[] inputByteArray = Encoding.UTF8.GetBytes(SourceStr);
+                DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider();
+                MemoryStream mStream = new MemoryStream();
+                CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
+                cStream.Write(inputByteArray, 0, inputByteArray.Length);
+                cStream.FlushFinalBlock();
+                string str = Convert.ToBase64String(mStream.ToArray());
+                return str;
+            }
+            catch
+            {
+                return SourceStr;
+            }
+        }
+
+        public string DecryptDes(string SourceStr, string skey)       //使用標準DES對稱解密, skey請帶入8位數自訂KEY
+        {
+            try
+            {
+                byte[] rgbKey = Encoding.UTF8.GetBytes(skey.Substring(0, 8));
+                byte[] rgbIV = Keys;
+                byte[] inputByteArray = Convert.FromBase64String(SourceStr);
+                DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider();
+                MemoryStream mStream = new MemoryStream();
+                CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
+                cStream.Write(inputByteArray, 0, inputByteArray.Length);
+                cStream.FlushFinalBlock();
+                return Encoding.UTF8.GetString(mStream.ToArray());
+            }
+            catch
+            {
+                return SourceStr;
+            }
+        }
+
+        public string EncryptAutoKey(string str)
+        {
+            function f = new function();
+            if (!f.isStrNull(str))
+            {
+                string key = f.randKey(8);
+                string encode = EncryptDes(str, key);
+                str = f.randKey(3) + f.Left(key, 5) + f.Left(encode, encode.Length - 2) + f.Right(key, 3) + f.Right(encode, 2);
+                return str;
+            }
+            return "";
+        }
+        public string DecryptAutoKey(string str)
+        {
+            try
+            {
+                function f = new function();
+                if (!string.IsNullOrEmpty(str))
+                {
+                    string str2 = str?.Substring(3, (str ?? "").Length - 3);
+                    string key = f.Left(str2, 5) + f.Left(f.Right(str2, 5), 3);
+                    str2 = str2.Substring(5, str2.Length - 10) + f.Right(str2, 2);
+                    return DecryptDes(str2, key);
+                }
+                    
+            }
+            catch (Exception ex)
+            {
+
+            }
+            return str;
+        }
+
+
+        public string SHA256(string str)
+        {
+            using (SHA256 hash = SHA256Managed.Create())
+            {
+                return string.Concat(hash
+                  .ComputeHash(Encoding.UTF8.GetBytes(str))
+                  .Select(item => item.ToString("x2")));
+            }
+        }
+
+        public string followerHash(string s1, string s2)
+        {
+            string input = s1 + s2;
+            input = new string(input.Where(c => 
+                char.IsLetterOrDigit(c)).ToArray()).ToUpper();
+            return SHA256(input);
+        }
+    }
+}
+