急求md5加密算法的代码！最好是封装成类的，拿过来就可以用的！
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------解决方案--------------------
//MD5
private string HashTextMD5(string strToHash)
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] bytValue;
byte[] bytHash;
string strPassword;
bytValue = System.Text.Encoding.UTF8.GetBytes(strToHash);
bytHash = md5.ComputeHash(bytValue);
md5.Clear();
strPassword = Convert.ToBase64String(bytHash);
return strPassword;
}
------解决方案--------------------
pwd=System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile( "123 ", "MD5 ");