Contextualisation of Data Flow Diagrams for security analysis

Data flow diagrams (DFDs) are popular for sketching systems for subsequent threat modelling. Their limited semantics make reasoning about them difficult, but enriching them endangers their simplicity and subsequent ease of take up. We present an approach for reasoning about tainted data flows in design-level DFDs by putting them in context with other complementary usability and requirements models. We illustrate our approach using a pilot study, where tainted data flows were identified without any augmentations to either the DFD or its complementary models

Integration of safety means with functions of blockchain in multi-layered architecture of IoT for safer data transmission procedures

The launching and linking process of heterogeneous objects to the Internet of Things (IoT) is related to some important problems of the identification, authentication for ensuring safety over the wireless connections. The possibilities of connections to the IoT differ in a broad spectrum of different equipment, the functionality of objects, communication protocols, etc. This research study is related to the implementation of safeguard algorithms on the first stages of object identification and authentication before the permission stage for launching into the working area of the IoT. The application domain is related to the requirements for the safety of the multilayered infrastructure of objects by linking to the whole IoT. Such infrastructure became more complex according to the risks of very unsafe possibilities. The aim of this research is to evaluate some safety means related to the identification and authentication stages of objects by integrating them with the functionality of blockchain. The objectives of this research are related to the development of more safety working algorithms by representing the stages of checking of the identity of objects. The results demonstrated integration possibilities of implementing the blockchain functionality for establishing and managing the operational rules for pre-connection stages of objects to the IoT. The paper shows new results of developing protection means for ensuring reliable communication in the transmission of outgoing confidential data and transmission data integrity from different smart objects. As a result, components of necessary functional capabilities of the communication of IoT are developed by intending to ensure the safety and reliability of the wireless connection of objects

INFLUENCE OF BROWNFIELD CONVERSION ON EVALUATING REAL ESTATE AND IMPLEMETING THE POSSIBILITES OF URBAN BROWNFIELDS IN LITHUANIAN CITIES / APLEISTŲ TERITORIJŲ KONVERSIJOS ĮGYVENDINIMO GALIMYBĖS LIETUVOS MIESTUOSE

The article deals with the problems of brownfield in Lithuania. The paper overviews Lithuanian and foreign experience of integrating the introduced areas into the urban framework based on social, economic, ecological and cultural contextuality. The main problem, on Lithuanian scale, is the absence of an official definition of urban brownfield. The legal framework in Lithuania does not contain any provisions to be processed. The article is aimed at identifying potential threats to the areas in respect of criteria for urban brownfields, and, according to this review, at revealing possible uses of this land. One of the most effective ways of urban sustainable development is the conversion of former military, industrial and other land accepted as the legacy of the Soviet regime. The authors have established a causal relationship resulting in the emergence of the urban areas of wilderness and developed guidance on using them. The authors have analysed and evaluated the existing real estate developers and current trends towards opportunities for private and public partnership (PPP) in Lithuania. Although PPP is widespread in most of European countries, it is a rare phenomenon in Lithuania, and has no deep-rooted tradition of this kind of investment in urban infrastructure; however, evaluation is one of the most potential ways to revitalize abandoned urban territories. Based on practices of foreign countries, the authors have identified PPP as a priority. Santrauka  Straipsnyje nagrinėjama apleistų teritorijų Lietuvoje problematika, apžvelgiama tokių teritorijų integravimo į miestų urbanistinį karkasą, atsižvelgiant į socialinį, ekonominį, ekologinį ir kultūrinį kontekstualumą, Lietuvos ir užsienio patirtis. Pagrindinė vyraujanti problema yra informacijos, kaip vertinti apleistas teritorijas, stoka. Lietuvos teisinėje bazėje nėra jokių jų tvarkymo nuostatų. Šio straipsnio tikslas – įvertinus Europos šalių patirtį apibrėžti tokių teritorijų keliamas grėsmes ir atskleisti panaudojimo galimybes Lietuvos miestuose. Buvusių karinių, pramoninių ir kitų teritorijų, susiformavusių mieste sovietinio režimo metais, konversija – tai vienas efektyviausių tvariosios plėtros būdų. Autoriai identifikavo priežastinį ryšį, lėmusį miesto dykrų atsiradimą, ir parengė jų panaudojimo metodines rekomendacijas. Atlikdami analizę autoriai įvertino esamą bendrąją Lietuvos miestų urbanistinę situaciją bei privataus ir viešojo sektorių partnerystės (angl. Public Private Partnership – PPP) taikymo galimybes. Lietuvoje toks investavimo į miesto infrastruktūrą būdas, priešingai nei Europos šalyse, yra retas, neturi gilių tradicijų, tačiau vertinamas kaip potencialus. Atlikę užsienyje taikomų modelių apžvalgą autoriai šį partnerystės būdą išskyrė kaip prioritetinį. Reikšminiai žodžiai: „rudosios dėmės“, viešojo ir privataus sektorių partnerystė, miestų planavimas, teritorijų pertvarkymas, darni plėtra, kompaktiškas miestas