نتایج جستجو برای: denial of service
تعداد نتایج: 21193855 فیلتر نتایج به سال:
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Availability requires that computer systems function normally without loss of resources to legitimate users. One of the most challenging issues to availability is the denial-ofservice (DoS) attack. DoS attacks constitute one of the major threats and among the hardest security problems in today’s Internet. The main aim of a DoS is the disruption of services by attempting to limit access to a mac...
Denial-of-Service attacks and Distributed Denial-of-Service attacks are serious security problems over the Internet due to their nature. They are easy to implement, hard to prevent, and very difficult to trace. This paper describes Denial-of-Service attacks and Distributed Denial-of-Service attacks and presents various traceback that are proposed to identify the sources of theses attackers in t...
Recent network denial-of-service attacks have brought about awareness of the vulnerability of increasingly important network services. While denial of service is not a new problem, and some of the network aspects of denial of service have been addressed, there is currently no unifying definition of what constitutes network denial of service. The goal of this paper is to propose a definition of ...
The huge damage of denial of service attacks in security protocols attracts researchers’ attention and effort to analysis, verification and prevention of denial of service attacks. In order to model resistance of denial of service attacks, firstly, we extend applied pi calculus from both adversary context and processes aspects; secondly, the first computer-aided method of resistance of denial o...
Owning to the damage of denial of service attacks in security protocols, resistance of denial of service attacks plays an important role in remote voting protocols. Recently Meng et al. proposed a secure remote internet voting protocol that claims to satisfy formal definitions of key properties without physical constrains. In this study firstly the review of the formal model of resistance of de...
Denial of service resilience is an important practical consideration for key agreement protocols in any hostile environment such as the Internet. There are well-known models that consider the security of key agreement protocols, but denial of service resilience is not considered as part of these models. Many protocols have been argued to be denial-of-service-resilient, only to be subsequently b...
Abstract This paper addresses denial of service vulnerabilities (DOS) in 802.11 wireless LANs that arise from the 802.11 distributed coordination function (DCF). We demonstrate that the DCF is vulnerable to equivalent DOS attacks at both the MAC and PHY layers. Denial of service attacks against the DCF are easily staged by a single adversary and affect both infrastructure and mobile ad hoc netw...
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