.NET MD5 加密（备忘）

﹏ヽ暗。殇╰゛Y 2024-02-17 19:35 38阅读 0赞

// CODE1 建立MD5加密主函数

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Web;  
using System.Security.Cryptography;  
using System.Text;  
  
namespace Ts.BusinessRules  
\{  
/// <summary>  
/// 公共方法类  
/// </summary>  
public class Utitly  
\{  
/// <summary>  
/// 使用MD5加密字符串  
/// </summary>  
/// <param name="str">待加密的字符</param>  
/// <returns></returns>  
public static string GetStrUseMD5(string str)  
\{  
if(str.IsNullOrEmpty())  
\{  
return string.Empty;  
\}  
MD5CryptoServiceProvider md5=new MD5CryptoServiceProvider();  
byte\[\] arr = UTF8Encoding.Default.GetBytes(str);  
byte\[\] bytes = md5.ComputeHash(arr);  
str = BitConverter.ToString(bytes);  
str=str.Replace("-", "");  
return str;  
\}  
\}  
\}

// CODE2 建立 string 类型的扩展方法

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Web;  
  
namespace Ts.BusinessRules  
\{  
/// <summary>  
/// 扩展方法  
/// </summary>  
public static class ExtendMethod  
\{  
/// <summary>  
/// 判断字符串是否为空或Null  
/// </summary>  
/// <param name="str">字符串</param>  
/// <returns></returns>  
/// <remarks>创建人员(日期):★ben★(101029 13:41)</remarks>  
public static bool IsNullOrEmpty(this string str)  
\{  
return string.IsNullOrEmpty(str);  
\}  
/// <summary>  
/// 得到MD5加密后的字符  
/// </summary>  
/// <param name="str">待转换字符</param>  
/// <returns></returns>  
public static string ToMD5(this string str)  
\{  
return Utitly.GetStrUseMD5(str);  
\}  
\}  
\}

// CODE3 字符串加密的使用方法

namespace Ts.BusinessRules  
\{  
/// <summary>  
/// 公共方法类  
/// </summary>  
public class Utitly  
\{

public string Test(string str)  
\{  
string md5=str.ToMD5();

return md5;  
\}