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iMES.Core/Utilities/SecurityEncDecrypt.cs

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+using Microsoft.Extensions.Logging;
+using System;
+using System.IO;
+using System.Security.Cryptography;
+using System.Text;
+using iMES.Core.Services;
+
+namespace iMES.Core.Utilities
+{
+    public class SecurityEncDecrypt
+    {
+        #region 
+        private static byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F };
+        /// <summary> 
+        /// DES加密字符串 
+        /// </summary> 
+        /// <param name="encryptString">待加密的字符串</param> 
+        /// <param name="encryptKey">加密密钥,要求为16位</param> 
+        /// <returns>加密成功返回加密后的字符串，失败返回源串</returns> 
+
+        public static string EncryptDES(string encryptString, string encryptKey)
+        {
+            try
+            {
+                byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 16));
+                byte[] rgbIV = Keys;
+                byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString);
+                var DCSP = Aes.Create();
+                MemoryStream mStream = new MemoryStream();
+                CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
+                cStream.Write(inputByteArray, 0, inputByteArray.Length);
+                cStream.FlushFinalBlock();
+                return Convert.ToBase64String(mStream.ToArray());
+            }
+            catch (Exception ex)
+            {
+                throw new Exception("数据库密码加密异常" + ex.Message);
+            }
+
+        }
+
+        /// <summary> 
+        /// DES解密字符串 
+        /// </summary> 
+        /// <param name="decryptString">待解密的字符串</param> 
+        /// <param name="decryptKey">解密密钥,要求为16位,和加密密钥相同</param> 
+        /// <returns>解密成功返回解密后的字符串，失败返源串</returns> 
+
+        public static string DecryptDES(string decryptString, string decryptKey)
+        {
+            try
+            {
+                byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey.Substring(0, 16));
+                byte[] rgbIV = Keys;
+                byte[] inputByteArray = Convert.FromBase64String(decryptString);
+                var DCSP = Aes.Create();
+                MemoryStream mStream = new MemoryStream();
+                CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write);
+                Byte[] inputByteArrays = new byte[inputByteArray.Length];
+                cStream.Write(inputByteArray, 0, inputByteArray.Length);
+                cStream.FlushFinalBlock();
+                return Encoding.UTF8.GetString(mStream.ToArray());
+            }
+            catch (Exception ex)
+            {
+               Logger.Error("解密异常：str:" + decryptString + ",Key:" + decryptKey+"---"+ ex.Message);
+                return null;
+            }
+
+        }
+        #endregion
+    }
+}