.net MD5加密

引用：

using System.Security.Cryptography;

类：

public class MD5Util
{
public static string GetMD5(string input)
{
return GetMD5(input, Encoding.Default);
}

public static string GetMD5(string input, Encoding encoding)
{
using (MD5 md5Hash = MD5.Create())
{
byte[] data = md5Hash.ComputeHash(encoding.GetBytes(input));
StringBuilder sb = new StringBuilder();
for (int i = 0; i < data.Length; i++)
{
sb.Append(data[i].ToString("x2"));
}

return sb.ToString();
}
}
}

/// <summary>
/// MD5大写 UTF8编码
/// </summary>
/// <returns></returns>
public static string GetMD5(string orgStr)
{
    using (System.Security.Cryptography.MD5 m = System.Security.Cryptography.MD5.Create())
    {
        byte[] hashData = m.ComputeHash(Encoding.UTF8.GetBytes(orgStr));
        return System.BitConverter.ToString(hashData).Replace("-", "").ToUpper();
    }
}