A Tutorial on Network Security: Attacks and Controls potx

... Session, Transport, Network, Data-link and Physical layers. The application layer specifies how one particular application uses a network and contacts the application program running on a remote ... The packet filters and the stateful inspection firewalls take actions by only looking at the headers of the data packets. An application proxy firewall acts as an intermediate gateway attempting ... of an original IPv4 datagram and IPv4 datagram with AH is shown in Figure 12. Figure 11: Structure of an Authentication Header (AH) Figure 12: Original IPv4 Datagram and IPv4 Datagram with...

A Survey on Network Security and Attack Defense Mechanism For Wireless Sensor Networks pdf

... development and many potential civilian and military applications such as environmental monitoring, battlefield surveillance, and homeland security. In many important military and commercial applications, ... the creation of a false stream in a WSN.  Mote-class versus laptop-class attacks: In mote-class (sensor-class) attacks, an adversary attacks a WSN by using a few nodes with similar capabilities ... obtains wrong information. In a WSN, for example, a packet containing the location of an important event can be modified so that a wrong location is reported to the base station. Control and...

BÀI tập lớn môn lý THUYẾT mật mã và bảo mật THÔNG TIN đề tài (đề 5) a tutorial on linear and differential cryptanalysis (differential cryptanalysis)

... A. Shamir, Differential Cryptanalysis of the Data EncryptionStandard, Springer-Verlag, 1993.[6] National Institute of Standards, Advanced Encryption Standard (AES) website: www.nist.gov/aes.[7] ... www.nist.gov/aes.[7] J. Daemen and V. Rjimen, "AES Proposal: Rijndael", First AdvancedEncryption Standard (AES) Conference, California, Aug. 1998. (See also [6].)[8] H.M. Heys and S.E. Tavares, "Substitution-Permutation ... DES-likeCryptosystems",Journal of Cryptology, vol. 4, no. 1, pp. 3-72, 1991.[3] National Bureau of Standards, "Data Encryption Standard", FederalInformationProcessing Standard 46, 1977.[4] M. Matsui,...

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Tài liệu ITU Study on the Financial Aspects of Network Security: Malware and Spam doc

... widespread availability of malware tools, and a growing gap between the sophistication of systems and applications and end user awareness. The increased reliance on ICT, the advent of broadband, and ... average of 34.9 percent in 2006. Phishing attacks have widened their targets from defrauding major international banks and financial organizations to also targeting smaller national and state ... activities have expanded and differentiated beyond smaller groups so that apparently mechanisms to increase trust among the many actors are emerging. For example, some malware variants carry a guarantee...

Tài liệu Guideline on Network Security Testing: Recommendations of the National Institute of Standards and Technology ppt

... primary types of anti-virus programs available: those that are installed on the network infrastructure and those that are installed on end-user machines. Each has advantages and disadvantages, but ... conducted on particular parts of the system and on the entire system as a whole. Security Test and Evaluation (ST&E) is an examination or analysis of the protective measures that are placed on an ... misconfigurations. Organizations should conduct vulnerability scanning to validate that operating systems and major applications are up to date on security patches and software version. Vulnerability...

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Towards a Cooperative Defense Model Against Network Security Attacks potx

... thecoalition. As against a non-cooperative game, where individual players are assigned a payoﬀ, in a coalitional game, each player is allocated a part of the value associated withhis coalition. ... xb({i}),the deviation is proﬁtable and hence, the optimistic core is empty.2 Harikrishna, Venkatanathan and Pandu Rangan6]. A lot of work on the economics of coalition formation and alliances can be ... of protection of the passive players and thus engage in joint protection.6 Harikrishna, Venkatanathan and Pandu Rangan A value is associated with each coalition, which is shared among the members...

A TUTORIAL ON POINTERS AND ARRAYS IN C

... example, if we have an array of 5000 integers that we want to manipulate with a function, we need only pass to that function the address of the array (and any auxiliary information such as ... {&apos ;A& apos;,'B','C','D','E','F','G','H','I','J'} multi[3] = {'9','8','7','6','5','4','3','2','1','0'} ... {'9','8','7','6','5','4','3','2','1','0'} multi[4] = {'J','I','H','G','F','E','D','C','B',&apos ;A& apos;}...

Báo cáo y học: "Primary lower limb lymphedema: a focus on its functional, social and emotional impac"

... with a con-genital primary lymphedema [14]. Conclusions Assessing the impact of the duration and sever-ity of the condition in relation to age, sex and occupa-tional status as influential ... disorders. A conventional approach was applied, involving eleva-tion of the affected limb, massage, physical activity and compression with elastic stockings. On physical examination she presented a ... case the analysis of SF-36 results dis-closed a significant functional impairment with a slight impact of the condition on emotional and social domains (Table 1). A possible explanation could...

A study on the opportunities for and constraints on developing students’ oral skills at an upper-secondary school

... consists of short, fragmentary utterance, in a range of pronunciation. There is often a great deal of repetition and overlap between one speaker and another and speakers usually use non-specific references. ... them reluctant to participate in activities and tend to speak 37to the students and the teachers and qualitative data were collected via class observations and interviews of teachers and students. ... the teaching and learning take place both in the mornings and afternoons. The school does not have a language lab for English classes; the library has few English books, papers and magazines...

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