C# 里的MD5 算法代码片段
using System; public string CreateMD5Hash (string input) { // Use input string to calculate MD5 hash MD5 md5 = System.Security.Cryptography.MD5.Create(); byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes (input); byte[] hashBytes = md5.ComputeHash (inputBytes); // Convert the byte array to hexadecimal string StringBuilder sb = new StringBuilder(); for (int i = 0; i < hashBytes.Length; i++) { sb.Append (hashBytes[i].ToString ("X2")); // To force the hex string to lower-case letters instead of // upper-case, use he following line instead: // sb.Append(hashBytes[i].ToString("x2")); } return sb.ToString(); }
用法
string md5hash = CreateMD5Hash("abcdefghijklmnopqrstuvwxyz");
执行结果
md5hash will contain this string: "C3FCD3D76192E4007DFB496CCA67E13B".
-C#里也可以直接使用System.Web.Security 命名空间 生成MD5
FormsAuthentication.HashPasswordForStoringInConfigFile (string, "MD5")