Internal.Cryptography.Pal.DirectoryBasedStoreProvider.GetDirectoryName C# (CSharp) Method

        private static string GetDirectoryName(string storeName)
        {
            Debug.Assert(storeName != null);

            try
            {
                string fileName = Path.GetFileName(storeName);

                if (!StringComparer.Ordinal.Equals(storeName, fileName))
                {
                    throw new CryptographicException(SR.Format(SR.Security_InvalidValue, nameof(storeName)));
                }
            }
            catch (IOException e)
            {
                throw new CryptographicException(e.Message, e);
            }

            return storeName.ToLowerInvariant();
        }