C# MD5加密類

 

Code
 1using System;
 2using System.Collections.Generic;
 3using System.Text;
 4using System.Security.Cryptography; 
 5
 6namespace Archives
 7{
 8        public static class Encryption
 9        {
10                /**//// <summary>
11                /// MD5加密
12                /// </summary>
13                /// <param name="str"></param>
14                /// <returns></returns>
15                public static string MD5(String str)
16                {
17                        MD5 md5 = new MD5CryptoServiceProvider();
18                        byte[] data = System.Text.Encoding.Default.GetBytes(str);
19                        byte[] result = md5.ComputeHash(data);
20                        String ret = "";
21                        for (int i = 0; i < result.Length; i++)
22                                ret += result[i].ToString("x").PadLeft(2, '0');
23                        return ret;
24                } 
25        }
26}
27