using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace CodeHelper
{
    public class SecurityHelper
    {
        ///   <summary>
        ///   给一个字符串进行MD5加密
        ///   </summary>
        ///   <param   name="strText">待加密字符串</param>
        ///   <returns>加密后的字符串</returns>
        public static string MD5Encrypt(string strText)
        {
            string encryptPwd = "";
            MD5 md5 = new MD5CryptoServiceProvider();
            byte[] hashPwd = md5.ComputeHash(Encoding.UTF8.GetBytes(strText));
            foreach (byte b in hashPwd)
            {
                encryptPwd += b.ToString("X2");//转换成十六进制数，不然返回的字符串可能是乱码
            }

            return encryptPwd;
        }
    }
}