private static bool GuidFormatValidate(string guid, string format = "U")
{
if ("U".Equals(format))
{
format = GuidDate.DetectedFormat(guid);
}
string regexp = GuidDate.getGuidFormat(format).Replace("0", "[a-f0-9]")
.Replace("{", "\\{")
.Replace("}", "\\}")
.Replace("(", "\\(")
.Replace(")", "\\)");
return(Regex.Match(guid, "" + regexp + "", RegexOptions.IgnoreCase).Success&& !"U".Equals(format));
}
/// <summary>
/// Valida que el checksun del GUID sea correcto
/// </summary>
/// <param name="guid">Guid</param>
/// <param name="crcKey">Key para calcular el checksun</param>
/// <returns>Indica si el checksun es correcto</returns>
public static bool Validate(string guid, string format = "U", string crcKey = GuidDate.DEFAULT_CRCKEY)
{
if ("U".Equals(format))
{
format = GuidDate.DetectedFormat(guid);
}
if (!GuidDate.GuidFormatValidate(guid, format))
{
return(false);
}
string guidAux = new Regex(@"[^0-9a-fA-F]").Replace(guid, "");
string guidOrigin = guidAux.Substring(2, guidAux.Length - 2);
string guidCRC = guidAux.Substring(0, 2);
string crc = CreateCRC(guidOrigin, crcKey);
return(crc == guidCRC);
}