diff --git a/framework/Furion.Pure/DataEncryption/Encryptions/DESCEncryption.cs b/framework/Furion.Pure/DataEncryption/Encryptions/DESCEncryption.cs
index 897c4a5971adbd30bc26399c0d6dd2221f4452c4..aaa78c6fd6873bbfc25cf704bcc4b051913df9f9 100644
--- a/framework/Furion.Pure/DataEncryption/Encryptions/DESCEncryption.cs
+++ b/framework/Furion.Pure/DataEncryption/Encryptions/DESCEncryption.cs
@@ -1,12 +1,12 @@
-// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
 // 让 .NET 开发更简单，更通用，更流行。
 // Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
 //
 // 框架名称：Furion
 // 框架作者：百小僧
 // 框架版本：2.8.9
-// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion 
-//          Github：https://github.com/monksoul/Furion 
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
 // 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
 // -----------------------------------------------------------------------------
 
@@ -28,15 +28,16 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="text">加密文本</param>
         /// <param name="skey">密钥</param>
+        /// <param name="isUpper">内部Md5加密是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Encrypt(string text, string skey)
+        public static string Encrypt(string text, string skey, bool isUpper = false)
         {
             using var des = new DESCryptoServiceProvider();
             byte[] inputByteArray;
             inputByteArray = Encoding.Default.GetBytes(text);
 
-            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
-            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
+            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
+            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
 
             using var ms = new System.IO.MemoryStream();
             using var cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
@@ -58,8 +59,9 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="hash">加密后字符串</param>
         /// <param name="skey">密钥</param>
+        /// <param name="isUpper">内部Md5加密是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Decrypt(string hash, string skey)
+        public static string Decrypt(string hash, string skey, bool isUpper = false)
         {
             using var des = new DESCryptoServiceProvider();
             int len;
@@ -73,8 +75,8 @@ namespace Furion.DataEncryption
                 inputByteArray[x] = (byte)i;
             }
 
-            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
-            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
+            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
+            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
 
             using var ms = new System.IO.MemoryStream();
             using var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
diff --git a/framework/Furion.Pure/DataEncryption/Encryptions/MD5Encryption.cs b/framework/Furion.Pure/DataEncryption/Encryptions/MD5Encryption.cs
index 1402456f1fb95c29fc1ea61a2a867af915386805..08a730406d11604bf4ca4cc18a2e70729a20070f 100644
--- a/framework/Furion.Pure/DataEncryption/Encryptions/MD5Encryption.cs
+++ b/framework/Furion.Pure/DataEncryption/Encryptions/MD5Encryption.cs
@@ -1,12 +1,12 @@
-// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
 // 让 .NET 开发更简单，更通用，更流行。
 // Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
 //
 // 框架名称：Furion
 // 框架作者：百小僧
 // 框架版本：2.8.9
-// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion 
-//          Github：https://github.com/monksoul/Furion 
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
 // 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
 // -----------------------------------------------------------------------------
 
@@ -24,8 +24,16 @@ namespace Furion.DataEncryption
     [SkipScan]
     public static unsafe class MD5Encryption
     {
+        /// <summary>
+        /// 小写
+        /// </summary>
         private const uint LOWERCASING = 0x2020U;
 
+        /// <summary>
+        /// 大写
+        /// </summary>
+        private const uint UPPERCASING = 0;
+
         private static readonly delegate* managed<ReadOnlySpan<byte>, Span<char>, uint, void> _EncodeToUtf16Ptr;
 
         [ThreadStatic]
@@ -49,10 +57,11 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="text">加密文本</param>
         /// <param name="hash">MD5 字符串</param>
+        /// <param name="isUpper">是否转大写,默认：false</param>
         /// <returns>bool</returns>
-        public static bool Compare(string text, string hash)
+        public static bool Compare(string text, string hash, bool isUpper = false)
         {
-            var hashOfInput = Encrypt(text);
+            var hashOfInput = Encrypt(text, isUpper);
             return hash.Equals(hashOfInput, StringComparison.OrdinalIgnoreCase);
         }
 
@@ -60,15 +69,16 @@ namespace Furion.DataEncryption
         /// MD5 加密
         /// </summary>
         /// <param name="text">加密文本</param>
+        /// <param name="isUpper">是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Encrypt(string text)
+        public static string Encrypt(string text, bool isUpper = false)
         {
-            return string.Create(32, text, static (p, q) =>
+            return string.Create(32, text, (p, q) =>
             {
                 var buffer = Encoding.UTF8.GetBytes(q);
                 Span<byte> signed = stackalloc byte[16];
                 Instance.TryComputeHash(buffer, signed, out _);
-                _EncodeToUtf16Ptr(signed, p, LOWERCASING);
+                _EncodeToUtf16Ptr(signed, p, isUpper ? UPPERCASING : LOWERCASING);
             });
         }
     }
diff --git a/framework/Furion/DataEncryption/Encryptions/DESCEncryption.cs b/framework/Furion/DataEncryption/Encryptions/DESCEncryption.cs
index 897c4a5971adbd30bc26399c0d6dd2221f4452c4..aaa78c6fd6873bbfc25cf704bcc4b051913df9f9 100644
--- a/framework/Furion/DataEncryption/Encryptions/DESCEncryption.cs
+++ b/framework/Furion/DataEncryption/Encryptions/DESCEncryption.cs
@@ -1,12 +1,12 @@
-// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
 // 让 .NET 开发更简单，更通用，更流行。
 // Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
 //
 // 框架名称：Furion
 // 框架作者：百小僧
 // 框架版本：2.8.9
-// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion 
-//          Github：https://github.com/monksoul/Furion 
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
 // 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
 // -----------------------------------------------------------------------------
 
@@ -28,15 +28,16 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="text">加密文本</param>
         /// <param name="skey">密钥</param>
+        /// <param name="isUpper">内部Md5加密是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Encrypt(string text, string skey)
+        public static string Encrypt(string text, string skey, bool isUpper = false)
         {
             using var des = new DESCryptoServiceProvider();
             byte[] inputByteArray;
             inputByteArray = Encoding.Default.GetBytes(text);
 
-            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
-            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
+            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
+            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
 
             using var ms = new System.IO.MemoryStream();
             using var cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
@@ -58,8 +59,9 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="hash">加密后字符串</param>
         /// <param name="skey">密钥</param>
+        /// <param name="isUpper">内部Md5加密是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Decrypt(string hash, string skey)
+        public static string Decrypt(string hash, string skey, bool isUpper = false)
         {
             using var des = new DESCryptoServiceProvider();
             int len;
@@ -73,8 +75,8 @@ namespace Furion.DataEncryption
                 inputByteArray[x] = (byte)i;
             }
 
-            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
-            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey).Substring(0, 8));
+            des.Key = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
+            des.IV = Encoding.ASCII.GetBytes(MD5Encryption.Encrypt(skey, isUpper).Substring(0, 8));
 
             using var ms = new System.IO.MemoryStream();
             using var cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
diff --git a/framework/Furion/DataEncryption/Encryptions/MD5Encryption.cs b/framework/Furion/DataEncryption/Encryptions/MD5Encryption.cs
index 1402456f1fb95c29fc1ea61a2a867af915386805..08a730406d11604bf4ca4cc18a2e70729a20070f 100644
--- a/framework/Furion/DataEncryption/Encryptions/MD5Encryption.cs
+++ b/framework/Furion/DataEncryption/Encryptions/MD5Encryption.cs
@@ -1,12 +1,12 @@
-// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
 // 让 .NET 开发更简单，更通用，更流行。
 // Copyright © 2020-2021 Furion, 百小僧, Baiqian Co.,Ltd.
 //
 // 框架名称：Furion
 // 框架作者：百小僧
 // 框架版本：2.8.9
-// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion 
-//          Github：https://github.com/monksoul/Furion 
+// 源码地址：Gitee： https://gitee.com/dotnetchina/Furion
+//          Github：https://github.com/monksoul/Furion
 // 开源协议：Apache-2.0（https://gitee.com/dotnetchina/Furion/blob/master/LICENSE）
 // -----------------------------------------------------------------------------
 
@@ -24,8 +24,16 @@ namespace Furion.DataEncryption
     [SkipScan]
     public static unsafe class MD5Encryption
     {
+        /// <summary>
+        /// 小写
+        /// </summary>
         private const uint LOWERCASING = 0x2020U;
 
+        /// <summary>
+        /// 大写
+        /// </summary>
+        private const uint UPPERCASING = 0;
+
         private static readonly delegate* managed<ReadOnlySpan<byte>, Span<char>, uint, void> _EncodeToUtf16Ptr;
 
         [ThreadStatic]
@@ -49,10 +57,11 @@ namespace Furion.DataEncryption
         /// </summary>
         /// <param name="text">加密文本</param>
         /// <param name="hash">MD5 字符串</param>
+        /// <param name="isUpper">是否转大写,默认：false</param>
         /// <returns>bool</returns>
-        public static bool Compare(string text, string hash)
+        public static bool Compare(string text, string hash, bool isUpper = false)
         {
-            var hashOfInput = Encrypt(text);
+            var hashOfInput = Encrypt(text, isUpper);
             return hash.Equals(hashOfInput, StringComparison.OrdinalIgnoreCase);
         }
 
@@ -60,15 +69,16 @@ namespace Furion.DataEncryption
         /// MD5 加密
         /// </summary>
         /// <param name="text">加密文本</param>
+        /// <param name="isUpper">是否转大写,默认：false</param>
         /// <returns></returns>
-        public static string Encrypt(string text)
+        public static string Encrypt(string text, bool isUpper = false)
         {
-            return string.Create(32, text, static (p, q) =>
+            return string.Create(32, text, (p, q) =>
             {
                 var buffer = Encoding.UTF8.GetBytes(q);
                 Span<byte> signed = stackalloc byte[16];
                 Instance.TryComputeHash(buffer, signed, out _);
-                _EncodeToUtf16Ptr(signed, p, LOWERCASING);
+                _EncodeToUtf16Ptr(signed, p, isUpper ? UPPERCASING : LOWERCASING);
             });
         }
     }