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Wyświetlanie 1-2 z 2
Tytuł:
Trivializing verification of cryptographic protocols
Autorzy:
Piątkowski, Jacek
Szymoniak, Sabina
Powiązania:
https://bibliotekanauki.pl/articles/38704303.pdf
Data publikacji:
2023
Wydawca:
Instytut Podstawowych Problemów Techniki PAN
Tematy:
security protocol verification
tree visualisation
hierarchical data structure
weryfikacja protokołu bezpieczeństwa
wizualizacja drzewa
hierarchiczna struktura danych
Opis:
One of the main problems of the digital world is information security. Every second, peopleprocess millions of pieces of information that must be protected from unauthorized access. Cryptographic protocols that define the communication plan and the cryptographictechniques used to secure the messages come to the rescue. These protocols should alsobe regularly verified regarding their ability to protect systems from exposure to threatsfrom the computer network. Bearing in mind the need to secure communication, verify thecorrect operation of security methods and process large amounts of numerical data, we decided to deal with the issues of modeling the execution of cryptographic protocols and theirverification based on the CMMTree model. In this article, we present a tool that verifiesa protocol’s security. The tool allows for modelling a protocol and verifying that the pathin the execution tree represents an attack on that protocol. The tool implements a specially defined hierarchy of protocol classes and a predicate that determines whether a nodecan be attached to a tree. We conducted a number of tests on well-known cryptographicprotocols, which confirmed the correctness and effectiveness of our tool. The tool foundthe attack on the protocols or built an execution tree for them.
Źródło:
Computer Assisted Methods in Engineering and Science; 2023, 30, 4; 389-406
2299-3649
Pojawia się w:
Computer Assisted Methods in Engineering and Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visualisation of nominal data – practical and theoretical remarks
Wizualizacja danych mierzonych na skali nominalnej – uwagi praktyczne i teoretyczne
Autorzy:
Mącik, Radosław
Powiązania:
https://bibliotekanauki.pl/articles/424833.pdf
Data publikacji:
2016
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
Text data
nominal data
visualisation
word cloud
word tree
chord graph
correspondence analysis
Opis:
Nominal data, due to their nature, are often analysed statistically in a quite limited and traditional way. Usually they come from open-ended or simple/multiple choice questions. In typical research projects, such data are often presented in the form of more or less complex tables (including contingency tables) and standard charts. The author’s experience shows that such a visualisation is perceived as boring, especially by younger people, accustomed to the presentation of content in the form of infographics. The article presents examples of data analysis and a visualisation of the nominal data based on the results of the author’s research, including theoretical reflections on the techniques and tools used. The starting point is the raw text data from the responses to the open-ended questions subjected to analyses of the frequency of words and expressions, including its visualisation through word clouds. The next step is categorization and tabulation at the level of individual variables including the visualisation of categories, to assess the contingency between two nominal variables (or the nominal and the ordinal one), including visualising the relationships via chord diagrams and the correspondence analysis.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2016, 2 (52); 22-34
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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