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Author |
Mazzini, Silvia; Puri, Stefano; Mari, Federico; Melatti, Igor; Tronci, Enrico |
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Title |
Formal Verification at System Level |
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Conference Article |
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2009 |
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In: DAta Systems In Aerospace (DASIA), Org. EuroSpace, Canadian Space Agency, CNES, ESA, EUMETSAT. Instanbul, Turkey, EuroSpace |
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System Level Analysis calls for a language comprehensible to experts with different background and yet precise enough to support meaningful analyses. SysML is emerging as an effective balance between such conflicting goals. In this paper we outline some the results obtained as for SysML based system level functional formal verification by an ESA/ESTEC study, with a collaboration among INTECS and La Sapienza University of Roma. The study focuses on SysML based system level functional requirements techniques. |
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Sapienza @ mari @ Dasia09 |
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20 |
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Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico |
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Title |
Flexible Timeline-Based Plan Verification |
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Conference Article |
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Year |
2009 |
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KI 2009: Advances in Artificial Intelligence, 32nd Annual German Conference on AI, Paderborn, Germany, September 15-18, 2009. Proceedings |
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49-56 |
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Springer |
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Mertsching, Bärbel; Hund, M.; Aziz, M.Z. |
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Lecture Notes in Computer Science |
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5803 |
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978-3-642-04616-2 |
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yes |
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Sapienza @ mari @ Cffot09 |
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21 |
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Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico |
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Title |
Flexible Plan Verification: Feasibility Results |
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2009 |
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16th RCRA International Workshop on “Experimental evaluation of algorithms for solving problems with combinatorial explosion” (RCRA). Proceedings |
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Sapienza @ mari @ Rcra09 |
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22 |
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Cesta, Amedeo; Finzi, Alberto; Fratini, Simone; Orlandini, Andrea; Tronci, Enrico |
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Title |
Verifying Flexible Timeline-based Plans |
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Conference Article |
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2009 |
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E-Proc. of ICAPS Workshop on Validation and Verification of Planning and Scheduling Systems |
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The synthesis of flexible temporal plans has demonstrated wide applications possibilities in heterogeneous domains. We are currently studying the connection between plan generation and execution from the particular perspective of verifying a flexible plan before actual execution. This paper explores how a model-checking verification tool, based on UPPAAL-TIGA, is suitable for verifying flexible temporal plans. We first describe the formal model, the formalism, and the verification method. Furthermore we discuss our own approach and some preliminary empirical results using a real-world case study. |
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yes |
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Sapienza @ mari @ Vvps09 |
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23 |
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Author |
Bobbio, Andrea; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico |
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Functional analysis of a telecontrol system and stochastic measures of its GSM/GPRS connections |
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Journal Article |
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2005 |
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Archives of Transport – International Journal of Transport Problems |
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17 |
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3-4 |
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yes |
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Sapienza @ mari @ jtp05 |
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31 |
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Campagnano, Edoardo; Ciancamerla, Ester; Minichino, Michele; Tronci, Enrico |
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Title |
Automatic Analysis of a Safety Critical Tele Control System |
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Conference Article |
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Year |
2005 |
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24th International Conference on: Computer Safety, Reliability, and Security (SAFECOMP) |
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94-107 |
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We show how the Mur$\varphi$ model checker can be used to automatically carry out safety analysis of a quite complex hybrid system tele-controlling vehicles traffic inside a safety critical transport infrastructure such as a long bridge or a tunnel. We present the Mur$\varphi$ model we developed towards this end as well as the experimental results we obtained by running the Mur$\varphi$ verifier on our model. Our experimental results show that the approach presented here can be used to verify safety of critical dimensioning parameters (e.g. bandwidth) of the telecommunication network embedded in a safety critical system. |
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Springer |
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Fredrikstad, Norway |
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Winther, R.; Gran, B. A.; Dahll, G. |
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Lecture Notes in Computer Science |
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Series Volume |
3688 |
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3-540-29200-4 |
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yes |
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Sapienza @ mari @ safecomp05 |
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32 |
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Author |
Gorrieri, Roberto; Lanotte, Ruggero; Maggiolo-Schettini, Andrea; Martinelli, Fabio; Tini, Simone; Tronci, Enrico |
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Title |
Automated analysis of timed security: a case study on web privacy |
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Journal Article |
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2004 |
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International Journal of Information Security |
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2 |
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3-4 |
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168-186 |
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This paper presents a case study on an automated analysis of real-time security models. The case study on a web system (originally proposed by Felten and Schneider) is presented that shows a timing attack on the privacy of browser users. Three different approaches are followed: LH-Timed Automata (analyzed using the model checker HyTech), finite-state automata (analyzed using the model checker NuSMV), and process algebras (analyzed using the model checker CWB-NC). A comparative analysis of these three approaches is given. |
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Sapienza @ mari @ ijis04 |
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33 |
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Lanotte, Ruggero; Maggiolo-Schettini, Andrea; Tini, Simone; Troina, Angelo; Tronci, Enrico |
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Title |
Automatic Covert Channel Analysis of a Multilevel Secure Component |
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Conference Article |
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2004 |
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Information and Communications Security, 6th International Conference, ICICS 2004, Malaga, Spain, October 27-29, 2004, Proceedings |
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249-261 |
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The NRL Pump protocol defines a multilevel secure component whose goal is to minimize leaks of information from high level systems to lower level systems, without degrading average time performances. We define a probabilistic model for the NRL Pump and show how a probabilistic model checker (FHP-mur$\varphi$) can be used to estimate the capacity of a probabilistic covert channel in the NRL Pump. We are able to compute the probability of a security violation as a function of time for various configurations of the system parameters (e.g. buffer sizes, moving average size, etc). Because of the model complexity, our results cannot be obtained using an analytical approach and, because of the low probabilities involved, it can be hard to obtain them using a simulator. |
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Springer |
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Lopez, J.; Qing, S.; Okamoto, E. |
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Lecture Notes in Computer Science |
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Series Volume |
3269 |
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yes |
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Sapienza @ mari @ icics04 |
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34 |
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Author |
Martinelli, Marco; Tronci, Enrico; Dipoppa, Giovanni; Balducelli, Claudio |
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Title |
Electric Power System Anomaly Detection Using Neural Networks |
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Conference Article |
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2004 |
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8th International Conference on: Knowledge-Based Intelligent Information and Engineering Systems (KES) |
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1242-1248 |
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The aim of this work is to propose an approach to monitor and protect Electric Power System by learning normal system behaviour at substations level, and raising an alarm signal when an abnormal status is detected; the problem is addressed by the use of autoassociative neural networks, reading substation measures. Experimental results show that, through the proposed approach, neural networks can be used to learn parameters underlaying system behaviour, and their output processed to detecting anomalies due to hijacking of measures, changes in the power network topology (i.e. transmission lines breaking) and unexpected power demand trend. |
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Springer |
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Wellington, New Zealand |
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Negoita, M.G.; Howlett, R.J.; Jain, L.C. |
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Lecture Notes in Computer Science |
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3213 |
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3-540-23318-0 |
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Sapienza @ mari @ kes04 |
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35 |
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Author |
Lanotte, Ruggero; Maggiolo-Schettini, Andrea; Tini, Simone; Troina, Angelo; Tronci, Enrico |
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Title |
Automatic Analysis of the NRL Pump |
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Journal Article |
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Year |
2004 |
Publication |
Electr. Notes Theor. Comput. Sci. |
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99 |
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245-266 |
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We define a probabilistic model for the NRL Pump and using FHP-mur$\varphi$ show experimentally that there exists a probabilistic covert channel whose capacity depends on various NRL Pump parameters (e.g. buffer size, number of samples in the moving average, etc). |
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Sapienza @ mari @ entcs04 |
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36 |
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