初始化

SERVER/LIB/AESHELP.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Security.Cryptography;
+using System.IO;
+using Serilog;
+using Serilog.Events;
+
+namespace SERVER.LIB
+{
+    /// <summary>
+    /// 暂未使用 
+    /// </summary>
+    public class AESHELP
+    {
+        /// <summary> 
+        /// AES解密 
+        /// <param name="input">密文字节数组</param> 
+        /// <param name="key">密钥（16位）</param> 
+        /// <returns>返回解密后的字符串</returns> 
+        /// </summary> 
+        public static string DecryptByAES(string input, string key)
+        {
+            byte[] inputBytes = Convert.FromBase64String(input);
+            byte[] keyBytes = Encoding.UTF8.GetBytes(key.Substring(0, 16));
+            using (AesCryptoServiceProvider aesAlg = new AesCryptoServiceProvider())
+            {
+                aesAlg.Padding = PaddingMode.PKCS7;
+                aesAlg.Mode = CipherMode.ECB;
+                aesAlg.Key = keyBytes;
+                aesAlg.IV = keyBytes;
+                ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
+                using (MemoryStream msEncrypt = new MemoryStream(inputBytes))
+                {
+                    using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, decryptor, CryptoStreamMode.Read))
+                    {
+                        using (StreamReader srEncrypt = new StreamReader(csEncrypt))
+                        {
+                            return srEncrypt.ReadToEnd();
+                        }
+                    }
+                }
+            }
+        }
+
+        /// <summary> 
+        /// AES加密算法 
+        /// </summary> 
+        /// <param name="input">明文字符串</param> 
+        /// <param name="key">密钥（16位）</param> 
+        /// <returns>字符串</returns> 
+        public static string EncryptByAES(string input, string key)
+        {
+            byte[] keyBytes = Encoding.UTF8.GetBytes(key.Substring(0, 16));
+            using (AesCryptoServiceProvider aesAlg = new AesCryptoServiceProvider())
+            {
+                aesAlg.Padding = PaddingMode.PKCS7;
+                aesAlg.Mode = CipherMode.ECB;
+                aesAlg.Key = keyBytes;
+                aesAlg.IV = keyBytes;
+                ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
+                using (MemoryStream msEncrypt = new MemoryStream())
+                {
+                    using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
+                    {
+                        using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
+                        {
+                            swEncrypt.Write(input);
+                        }
+                        byte[] bytes = msEncrypt.ToArray();
+                        var ddc = Convert.ToBase64String(bytes);
+
+                        byte[] inputBytes = Convert.FromBase64String(ddc);
+                        return ddc;
+                    }
+                }
+            }
+        }
+        /// <summary>
+        /// 将指定的16进制字符串转换为byte数组
+        /// </summary>
+        /// <param name="s">16进制字符串(如：“7F 2C 4A”或“7F2C4A”都可以)</param>
+        /// <returns>16进制字符串对应的byte数组</returns>
+        public static byte[] HexStringToByteArray(string s)
+        {
+            s = s.Replace(" ", "");
+            byte[] buffer = new byte[s.Length / 2];
+            for (int i = 0; i < s.Length; i += 2)
+                buffer[i / 2] = (byte)Convert.ToByte(s.Substring(i, 2), 16);
+            return buffer;
+        }
+
+        /// <summary>
+        /// 将一个byte数组转换成一个格式化的16进制字符串
+        /// </summary>
+        /// <param name="data">byte数组</param>
+        /// <returns>格式化的16进制字符串</returns>
+        public static string ByteArrayToHexString(byte[] data)
+        {
+            StringBuilder sb = new StringBuilder(data.Length * 3);
+            foreach (byte b in data)
+            {
+                //16进制数字
+                sb.Append(Convert.ToString(b, 16).PadLeft(2, '0'));
+                //16进制数字之间以空格隔开
+                //sb.Append(Convert.ToString(b, 16).PadLeft(2, '0').PadRight(3, ' '));
+            }
+            return sb.ToString().ToUpper();
+        }
+    }
+}