Microsoft.Xades.XadesSignedXml.CheckHashDataInfosExist C# (CSharp) Method

        private bool CheckHashDataInfosExist(TimeStamp timeStamp)
        {
            bool retVal = true;

            for (int hashDataInfoCounter = 0; retVal == true && (hashDataInfoCounter < timeStamp.HashDataInfoCollection.Count); hashDataInfoCounter++)
            {
                HashDataInfo hashDataInfo = timeStamp.HashDataInfoCollection[hashDataInfoCounter];
                bool referenceFound = false;
                string referenceId;

                for (int referenceCounter = 0; referenceFound == false && (referenceCounter < this.SignedInfo.References.Count); referenceCounter++)
                {
                    referenceId = ((Reference) this.SignedInfo.References[referenceCounter]).Id;
                    if (("#" + referenceId) == hashDataInfo.UriAttribute)
                    {
                        referenceFound = true;
                    }
                }
                retVal = referenceFound;
            }

            return retVal;
        }