private static bool DoesSignatureUseSafeCanonicalizationMethod(SignedXml signedXml)
        {
            foreach (string safeAlgorithm in signedXml.SafeCanonicalizationMethods)
            {
                if (string.Equals(safeAlgorithm, signedXml.SignedInfo.CanonicalizationMethod, StringComparison.OrdinalIgnoreCase))
                {
                    return(true);
                }
            }

            SignedXmlDebugLog.LogUnsafeCanonicalizationMethod(signedXml, signedXml.SignedInfo.CanonicalizationMethod, signedXml.SafeCanonicalizationMethods);
            return(false);
        }