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Дисертації з теми "APT (informatique) – Systèmes informatiques – Mesures de sûreté"
Sun, Tithnara Nicolas. "Modélisation et analyse formelle de modèles système pour les menaces persistantes avancées." Electronic Thesis or Diss., Brest, École nationale supérieure de techniques avancées Bretagne, 2022. http://www.theses.fr/2022ENTA0004.
Повний текст джерелаCritical industrial systems are prime targets of cyber threats. In particular the Advanced Persistent Threats (APT) are sophisticated and well-resourced attacks targeting valuable assets. For APTs both the attack and the defense require advanced planning and strategies similar to military operations. The existing cyber-security-aware methodologies achieve valuable results for regular cyberthreats, however they fail to adequately address APTs due to their refined strategies and evasive tactics. The Operational Design methodology of military forces helps in better understanding how APTs devise their strategies. This mission-driven methodology adapted to the APT context relies on the federationof several processes of specification, modeling and analysis in order to produce an operational strategy. To evaluate this approach, a complete federation framework has been developed and applied to the case study of a mission of attack on a water pumping station
Künnemann, Robert. "Foundations for analyzing security APIs in the symbolic and computational model." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2014. http://tel.archives-ouvertes.fr/tel-00942459.
Повний текст джерелаMendy, Norbert Lucien. "Les attaques et la sécurité des systèmes informatiques." Paris 8, 2006. http://www.theses.fr/2006PA082735.
Повний текст джерелаHacking activities appeared around 1980 with first personal computers and since did not stop developing. At the beginning, this practice was primarily individual and playful. Now it is mainly made up by the activities of groups, with very various motivations. Today, due to the development of electronic means of communication, data security concerns a wider public. This thesis examines initially, from a technical and sociological point of view, attacks and defense mechanisms, and proposes a new concept of the security which is not only any centered on technical solutions but also takes in consideration the social dimension of the problem
Sadde, Gérald. "Sécurité logicielle des systèmes informatiques : aspects pénaux et civils." Montpellier 1, 2003. http://www.theses.fr/2003MON10019.
Повний текст джерелаVache, Géraldine. "Evaluation quantitative de la sécurité informatique : approche par les vulnérabilités." Toulouse, INSA, 2009. http://eprint.insa-toulouse.fr/archive/00000356/.
Повний текст джерелаThis thesis presents a new approach for quantitative security evaluation for computer systems. The main objective of this work is to define and evaluate several quantitative measures. These measures are probabilistic and aim at quantifying the environment influence on the computer system security considering vulnerabilities. Initially, we identified the three factors that have a high influence on system state: 1) the vulnerability life cycle, 2) the attacker behaviour and 3) the administrator behaviour. We studied these three factors and their interdependencies and distinguished two main scenarios based on nature of vulnerability discovery, i. E. Malicious or non malicious. This step allowed us to identify the different states of the system considering the vulnerability exploitation process and to define four measures relating to the states of the system: vulnerable, exposed, compromised, patched and secure. To evaluate these measures, we modelled the process of system compromising by vulnerability exploitation. Afterwards, we characterized the vulnerability life cycle events quantitatively, using real data from a vulnerability database, in order to assign realistic values to the parameters of the models. The simulation of these models enabled to obtain the values of the four measures we had defined. Finally, we studied how to extend the modelling to consider several vulnerabilities. So, this approach allows the evaluation of measures quantifying the influences of several factors on the system security
Bascou, Jean-Jacques. "Contribution à la sécurité des systèmes : une méthodologie d'authentification adaptative." Toulouse 3, 1996. http://www.theses.fr/1996TOU30253.
Повний текст джерелаTrabelsi, Slim. "Services spontanés sécurisés pour l'informatique diffuse." Phd thesis, Télécom ParisTech, 2008. http://pastel.archives-ouvertes.fr/pastel-00004140.
Повний текст джерелаSaadi, Rachid. "The Chameleon : un système de sécurité pour utilisateurs nomades en environnements pervasifs et collaboratifs." Lyon, INSA, 2009. http://theses.insa-lyon.fr/publication/2009ISAL0040/these.pdf.
Повний текст джерелаWhile the trust is easy to set up between the known participants of a communication, the evaluation of trust becomes a challenge when confronted with unknown environment. It is more likely to happen that the collaboration in the mobile environment will occur between totally unknown parties. An approach to handle this situation has long been to establish some third parties that certify the identities, roles and/or rights of both participants in a collaboration. In a completely decentralized environment, this option is not sufficient. To decide upon accesses one prefer to rely only on what is presented to him by the other party and by the trust it can establish, directly by knowing the other party or indirectly, and vice-versa. Hence a mobile user must for example present a set of certificates known in advance and the visited site may use these certificates to determine the trust he can have in this user and thus potentially allow an adapted access. In this schema the mobile user must know in advance where she wants to go and what she should present as identifications. This is difficult to achieve in a global environment. Moreover, the user likes to be able to have an evaluation of the site she is visiting to allow limited access to her resources. And finally, an user does not want to bother about the management of her security at fine grain while preserving her privacy. Ideally, the process should be automatized. Our work was lead to define the Chameleon architecture. Thus the nomadic users can behave as chameleons by taking the "colors" of their environments enriching their nomadic accesses. It relies on a new T2D trust model which is characterized by support for the disposition of trust. Each nomadic user is identified by a new morph certification model called X316. The X316 allows to carry out the trust evaluation together with the roles of the participants while allowing to hide some of its elements, preserving the privacy of its users
Maingot, Vincent. "Conception sécurisée contre les attaques par fautes et par canaux cachés." Grenoble INPG, 2009. https://tel.archives-ouvertes.fr/tel-00399450.
Повний текст джерелаL'évolution des besoins en sécurité des applications grand public a entraîné la multiplication du nombre de systèmes sur puces doués de capacités de chiffrement. En parallèle, l'évolution des techniques de cryptanalyse permet d'attaquer les implantations des méthodes de chiffrement utilisées dans ces applications. Cette thèse porte sur le développement d'une méthodologie permettant l'évaluation de la robustesse apportée par des protections intégrées dans le circuit. Cette évaluation est basée d'une part sur l'utilisation de plates-formes laser pour étudier les types de fautes induits dans un prototype de circuit sécurisé ; et d'autre part, sur l'utilisation d'une méthode basée sur des simulations pendant la phase de conception pour comparer l'influence sur les canaux cachés de protections contre les fautes. Cette méthodologie a été utilisée dans un premier temps sur le cas simple d'un registre protégé par redondance d'information, puis sur des primitives cryptographiques telles qu'une S-Box AES et des co-processeurs AES et RSA. Ces deux études ont montré que l'ajout de capacités de détection ou de correction améliore la robustesse du circuit face aux différentes attaques
Habib, Lionel. "Formalisations et comparaisons de politiques et de systèmes de sécurité." Paris 6, 2011. http://www.theses.fr/2011PA066146.
Повний текст джерелаКниги з теми "APT (informatique) – Systèmes informatiques – Mesures de sûreté"
Jan, Christophe. La sécurité informatique. Paris: Eyrolles, 1989.
Знайти повний текст джерелаCRYPTO (Conference) (1992 Santa Barbara, Calif.). Advances in cryptology--CRYPTO '92: 12th Annual International Cryptology Conference, Santa Barbara, California, USA, August 16-20, 1992 : proceedings. Berlin: Springer-Verlag, 1993.
Знайти повний текст джерелаFaith, Cranor Lorrie, and Garfinkel Simson, eds. Security and Usability: Designing Secure Systems That People Can Use. Beijing: O'Reilly, 2005.
Знайти повний текст джерелаHansteen, Peter N. M. Le livre de PF: Packet filter. Paris: Eyrolles, 2009.
Знайти повний текст джерелаBauer, Friedrich Ludwig. Decrypted secrets: Methods and maxims of cryptology. Berlin: Springer, 1997.
Знайти повний текст джерелаPaget, François. Vers & virus: Classification, lutte anti-virale et perspectives. Paris: Dunod, 2005.
Знайти повний текст джерелаSlatalla, Michelle. Masters of deception: The gang that ruled cyberspace. New York: HarperCollins Publishers, 1995.
Знайти повний текст джерелаJoshua, Quittner, ed. Masters of deception: The gang that ruled cyberspace. New York: HarperPerennial, 1996.
Знайти повний текст джерелаEuropean Symposium on Research in Computer Security (3rd 1994 Brighton, England). Computer security: ESORICS 94 : third European Symposium on Research in Computer Security, Brighton, United Kingdom, November 7-9, 1994 : proceedings. Berlin: Springer-Verlag, 1994.
Знайти повний текст джерелаSchneier, Bruce. E-mail security: How to keep your electronic messages private. New York: Wiley, 1995.
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