Security techniques

This paper systematically presents a specific application of linear algebra in information security and cryptography, highlighting the crucial role of matrix operations and linear techniques in the design and analysis of encryption algorithms.

8p viaburame 14-03-2025 2 0   Download

to defend company resources: not only passively by using firewalls, virtual private networks (VPNs), encryption techniques, and whatever other tricks, but also by deploying proactive tools and devices throughout the network = IDS.

34p vvnghi 05-05-2011 158 23   Download

In the last lecture we looked at some high-level descriptions of key distribution and agreement schemes. These protocols cannot be used as they were stated. In implementation of the actual protocol, there are many situations one should be careful of. In this lecture, we will look at some common protocol failures that arise when trying to implement security protocols We will then look at some specific examples of security protocols

30p muathu_102 28-01-2013 37 5   Download

The two approaches to valuing common stocks using fundamental security analysis are: Discounted Cash flow techniques. Attempts to estimate the value of a stock today using a present value analysis. Relative valuation techniques. A stock is valued relative to other stocks based on the basis of ratios.

101p team4mvc02 12-06-2013 53 4   Download

Chapter 2 - Authentication. After studying this chapter you will be able to: Understand AAA (3A),create strong passwords and store them securely, understand the Kerberos authentication process, understand how CHAP works, understand what mutual authentication is and why it is necessary, understand how digital certificates are created and why they are used,...

55p nhanmotchut_3 20-10-2016 66 4   Download

Research Aims: The thesis aims to develop deep neural networks for analyzing security data. These techniques improve the accuracy of machine learning-based models applied in NAD. Therefore, the thesis attempts to address the above challenging problems in NAD using models and techniques in deep neural networks. Specifically, the following problems are studied.

128p armyofthedead 23-06-2021 20 3   Download

Models representing uncertainty factors; data mining techniques; calculation methods of power systems taking into account uncertainty factors.

31p gaocaolon6 30-07-2020 24 3   Download

This chapter aims at providing a research background on mobile commerce. Also, this chapter postulates the research gaps. Briefly, it is the if and how the perception of risk and security simultaneously affects continuance intention to use mobile commerce under the influence of considerations of future consequences that generates the need to conduct this study. Also, based on the research gap, this study delineates the research methodology and research scope. Regarding the research methodology, this research includes two studies: the pilot study and the main study.

179p cothumenhmong6 17-07-2020 39 5   Download

The current challenges related to safety, security and economic efficiency lead to the consolidation of the level of education and training of merchant marine officers, through the interdependence and diversification of the curricula in the world economy of shipping, finance of the maritime industry and the specialized labour market.

9p christabelhuynh 04-06-2020 17 1   Download

Evaluating the neutronic state (neutron flux, power . . . ) of the whole nuclear core is a very important topic that has strong implication for nuclear core management and for security monitoring. The core state is evaluated using measurements and calculations.

9p christabelhuynh 31-05-2020 19 1   Download

In this chapter, students will be able to understand: Password policies ensure that users choose effective passwords; user-level security requires a separate account for each user; in share-level security, all users access shares by using the same passwords; a firewall is a hardware or software product that protects a network from unauthorized access, using techniques such as packet filtering, NAT, or proxy servers;...

15p tangtuy08 21-04-2016 38 3   Download

Objectives of Chapter 1: To define three security goals; to define security attacks that threaten security goals; to define security services and how they are related to the three security goals; to define security mechanisms to provide security services; to introduce two techniques, cryptography and steganography, to implement security mechanisms

4p levuphongqn 18-08-2015 81 3   Download

We now begin our look at building protocols using the basic tools that we have discussed. The discussion in this lecture will focus on issues of key establishment and the associated notion of authentication These protocols are not real, but instead are meant to serve just as a high-level survey Later lectures will go into specific protocols and will uncover practical challenges faced when implementing these protocols

20p muathu_102 28-01-2013 66 9   Download

The Devil said to Daniel Webster: "Set me a task I can't carry out, and I'll give you anything in the world you ask for." Daniel Webster: "Fair enough. Prove that for n greater than 2, the equation an + bn = cn has no non-trivial solution in the integers." They agreed on a three-day period for the labor, and the Devil disappeared. At the end of three days, the Devil presented himself, haggard, jumpy, biting his lip. Daniel Webster said to him, "Well, how did you do at my task? Did you prove the theorem?' "Eh? No . . . no, I haven't...

18p muathu_102 28-01-2013 54 3   Download

Protect web content from those who don’t have a “need to know” Require users to authenticate using a userid/password before they are allowed access to certain URLs HTTP/1.1 requires that when a user makes a request for a protected resource the server responds with a authentication request header WWW-Authenticate contains enough pertinent information to carry out a “challenge-response” session between the user and the server

13p muathu_102 28-01-2013 52 3   Download

Used to connect two private networks together via the Internet Used to connect remote users to a private network via the Internet This could be done by opening your firewall to the LAN networking protocols (NETBIOS, NFS NetWare, AppleTalk)) But… it would also make those protocols available to any one on the Internet and they could come into your LAN at will Effectively make the whole Internet your LAN Exposes all of your data Anyone can easily take advantage of vulnerabilities in your internal hosts No privacy Better solution is to use a VPN in conjunction with your firewall ...

18p muathu_102 28-01-2013 86 4   Download

Biggest problem is figuring out who a piece of mail is really from Must use a higher level mechanism for trust or privacy Most SMTP clients use sendmail which has been a constant source of security problems for years

15p muathu_102 28-01-2013 41 2   Download

You don’t have to know all of the details You do need to know your system What services it is providing What protocols are involved What vulnerabilities is has How to minimize the risks

18p muathu_102 28-01-2013 43 2   Download

Security-Enhanced Linux (SELinux) is an implementation of mandatory access control using Linux Security Modules (LSM) in the Linux kernel, based on the principle of least privilege. It is not a Linux distribution, but rather a set of modifications that can be applied to Unix-like operating systems, such as Linux and BSD.

15p muathu_102 28-01-2013 98 12   Download

Developed 1996 as a teaching tool Santa Clara University\ Prof. Edward Schaefer Takes an 8-bit block plaintext, a 10 –bit key and produces an 8-bit block of ciphertext Decryption takes the 8-bit block of ciphertext, the same 10-bit key and produces the original 8-bit block of plaintext

13p muathu_102 28-01-2013 45 3   Download