C#中使用MD5加密

public string CreateMD5(string inputStr)
{
    MD5 md5 = MD5.Create();
    byte[] byteChar = md5.ComputeHash(Encoding.Default.GetBytes(inputStr));

    StringBuilder sb = new StringBuilder();
    foreach (byte b in byteChar)
    {
       sb.Append(b.ToString("x2"));
    }
    return sb.ToString();
}