secure socket layer ppt in network security

... of selfish investment in network security will be one of our focuses In this paper, we study how network topology, users’ preference and their mutual influence affect network security in a non-cooperative ... I INTRODUCTION Security in a communication network depends not only on the security investment made by individual users, but also on the interdependency among them If a careless user puts in ... the players: for example in the “selfish routing game”, if a user sends his traffic through a link, other users sharing that link will suffer larger delays On the contrary, in the network security

Ngày tải lên: 05/03/2014, 23:20

... businesses, and universities Security specialists have long been interested in knowing what an intruder can do to a computer network and what can be done to prevent or counteract attacks In this ... previous work in Sect 7 Finally, we summarize our results and point to future directions in Sect 8 2 Networks as stochastic games Game theory has been used in many other problems in-volving attackers ... ideal for captur-ing the properties of these interactions In real life, there can be more than one attacker at-tacking a network and more than one administrator man-aging the network at the same

Ngày tải lên: 14/03/2014, 22:20

... knowledgeable sysadmin Network systems Increasing connectivity Increasing complexity Increasing functionality Increasing “computrons” Increased application security Activity Increased state and ... sophistication Increasing communication/ collaboration Defenders Increasing complexity Increasing dependency Increasing attrition Decreasing budgets Persistent ignorance/ increasing awareness/ ... Concepts in Network Security SuSE Win 2K3 Win 2K Red Hat Virtual Machine X86 hardware LTC Ronald Dodge, Ph.D United States Military Academy Trends in Network Security Attackers Increasing sophistication

Ngày tải lên: 14/03/2014, 22:20

... of threats • integrity • confidentiality • denial of service • authentication • need added security mechanisms SSL (Secure Socket Layer) • • • • transport layer security service originally developed ... and Network Security Third Edition by William Stallings Lecture slides by Lawrie Brown Edited by Dick Steflik Web Security • Web now widely used by business, government, individuals • but Internet ... 995 Secure Sockets Layer Transport Network Link Uses Public Key Scheme • Each client-server pair uses • public keys • one for client (browser) – created when browser is installed on client machine

Ngày tải lên: 29/03/2014, 15:20

... khai Secure Socket Layer (SSL) GVHD: TS Phạm Văn Tính Nơi Dung Giới Thiệu Tổng Quan SSL Triển Khai SSL Apache2 Triển Khai SSL Tomcat6 Triển Khai SSL IIS Demo Giới thiệu Tổng Quan  Sercure Socket ... Socket Layer (SSL) hiện là giao thức bảo mật rất phổ biến Internet các hoạt động thương mại điện tử (E-Commerce) Việt Nam đường hội nhập với nền công nghệ thông tin thế ... khác  Client chứng thực server  E.g : “Am I talking to the real amazon.com server?”  Server chứng thực client  Muốn giữ bí mật tồn vẹn thơng tin trao đổi liệu hướng Một số công ty chuyên

Ngày tải lên: 26/08/2016, 22:41

... SOCKET LAYER (SSL) Giới thiệu SSL Giao thức an toàn tầng giao vận - Secure Sockets Layer (SSL) giao thức biết đến nhiều khả bảo mật độ tin cậy giao dịch khách - chủ (client-server) mạng Internet ... MẬT WEB (WEB SECURITY) Bảo mật web Trong xã hội phát triển ngày nay, công nghệ thông tin ngày trở nên chiếm ưu hết, sống người hỗ trợ nhiều ứng dụng công nghệ thông tin Đặc biệt diện internet đời ... thông tin toán - Phishing schemes (Các mưu đồ lừa đảo): Lừa đảo không xảy email - số cơng có dạng trang web trơng hợp pháp thiết kế để lừa người dùng cung cấp thông tin nhạy cảm - Session hijacking

Ngày tải lên: 26/06/2021, 20:52

... come undone by something very basic, something you have never considered to be an issue or a link in the chain of security. This document is not a definitive guide on Security. I won’t even ... Definitive Guide to Security. It is a constant living subject, with improvements, changes, retractions and even changes in thinking and direction every year. There is also no subject like security ... to lessen the possibility of an intruder will make a successful intrusion into your system. When implementing security I personally working the basis of four layers which generally come down

Ngày tải lên: 14/02/2014, 16:20

... Engineering Social engineering, in this context, is the increasingly prevalent act of obtaining confidential network security information through non-technical means For example, a social engineer ... periodically detect security vulnerabilities in the network, providing ongoing proactive security In addition, professional network security consultants can be engaged to help design the proper security ... password information Other examples of social engineering include bribing a coworker to gain access to a server or searching a colleague’s office to find a password that has been written in a hidden

Ngày tải lên: 14/02/2014, 16:20

... (Fraser, 1997) Network Security Network security architecture is the planning and design of the campus network to reduce security risks in accordance with the institution’s risk analysis and security ... attached machines running standard versions of Linux and Windows 2000 on our network and timed how long it took for the machine to have its security compromised In all of the tests, the machines had ... example, placing a firewall between the network segments containing the computers that oper-ate the institutional business systems allows the institution to pro-vide more restrictive security for

Ngày tải lên: 14/02/2014, 16:20

... training plan and user manual when training users of new IT investments The training plan should outline objectives, target audience, strategies, and curriculum TISS conducted informal training ... structured training curriculum, users’ needs are not being met and the continued use of the SIEM tool by EPA’s information security staff will be of limited value in performing information security ... briefing on security tools used to secure the Agency’s network infrastructure The OIG also contacted EPA’s regional information security community to determine whether they were using additional security

Ngày tải lên: 05/03/2014, 21:20

... information to improve security A network administrator obtains first-hand information about the current threats on his network Undiscovered security holes can be protected gained by the information from ... one network card and 1GB memory Host operating system is Windows XP Honeywall and Honeypot are installed in virtual machines Due to a decision of not connecting the management interface to the internet, ... routine or an attachment sent in an email can contain malicious code The method of propagation investigated in this document is the infection via network This method uses known vulnerabilities in

Ngày tải lên: 05/03/2014, 21:20

... suitable for your network. For simple networks WEP or WPA-PSK are most suitable, complex networks with installed RADIUS services can use WPA. Part 1: WEP Step1: Setting up Access Point’s WEP encryption ... to complete your settings. Step 2: Setting up Workstation’s WEP Key. 2a. If you are using D-Link Wireless Utility to configure your D-Link Wireless Card: 1. Open the D-Link AirPlus wireless ... type in the Hex or ASCII encryption key that was entered into the wireless router/access point. 2b. If you are using Windows XP to configure your wireless card: 1. Right-click “My Network

Ngày tải lên: 05/03/2014, 23:20

... Wang. Computer Network Security Theory and Practice. Springer 2009 Chapter 5 Network Security Protocols in Practice Part I J. Wang. Computer Network Security Theory and Practice. Springer 2009 Chapter ... 5 Outline  5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer  5.4 SSL/TLS: Security Protocols at the Transport Layer  5.5 ... Practice. Springer 2009 Chapter 5 Outline  5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer  5.4 SSL/TLS: Security Protocols

Ngày tải lên: 06/03/2014, 16:20

... 5 Network Security Protocols in Practice Part II Trang 2Chapter 5 Outline 5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer ... 16Chapter 5 Outline 5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer  5.4 SSL/TLS: Security Protocols at the Transport Layer  ... 21Chapter 5 Outline 5.1 Crypto Placements in Networks  5.2 Public-Key Infrastructure  5.3 IPsec: A Security Protocol at the Network Layer  5.4 SSL/TLS: Security Protocols at the Transport Layer 

Ngày tải lên: 06/03/2014, 16:20

... maintain the capability to quickly determine how an intruder compromised a victim and what the intruder did after gaining unauthorized access. This response process is called scoping an incident. ... “internal systems,” “remote dial-in,” and “Internet” as “frequent points of attack.” In 2003, 78% cited the Internet, while only 30% cited internal systems and 18% cited dial-in attacks. In ... common understanding of security and risk and examined prin- ciples held by those tasked with identifying and responding to intrusions, we can fully explore the concept of NSM. In Chapter 1, we

Ngày tải lên: 14/03/2014, 20:20

... tool prints the connection index on both the first AND the second line of a connection. This allows awk programs (or grep) to print the connection index when searching for access by/to certain hosts. • ... negotiations) to determine such things as terminal type, window size, and terminal speed. Previously these showed up as squiggly characters and curly braces at the beginning of the transcript ... command: % network_ capture If you are executing the program from the NSM/analysis directory and the NSM/bin directory is not in your PATH, enter: % /bin /network_ capture To start a network_

Ngày tải lên: 14/03/2014, 20:20

... demands, innovation in services, and open communication standards are driving the industry toward inter-networked buildings with ever-increasing services made possible by the flow of information ... employees, etc.)—Criminal scenarios include simply gathering information that would give knowledge of the buildings and how to break in, or maybe getting into the security system and having doors open ... will include: implementing a security policy, installing firewalls and other IT measures for increasing security (NAT, IDS, etc), and how to make secure connections to off-site devices using VPN

Ngày tải lên: 14/03/2014, 22:20

... NETWORK SECURITY ASYMMETRIC ENCRYPTION MAI Xuân Phú xuanphu150@gmail.com 1 C m nả ơ  Nội dung chương này có nguồn từ: o Nguyễn Đại Thọ, bài giảng môn “An Ninh Mạng”, đại học ... giải mã thông báo o Bên thẩm tra không thể tạo chữ ký Nguyễn Đại Thọ An ninh Mạng 4 Mã hóa khóa công khai Nguyễn Đại Thọ An ninh Mạng 5 Các khóa công khai Nguyên bản đầu vào Nguyên bản đầu ra Bản ... dụng; một số khác chỉ có thể dùng cho 1 hay 2 loại Nguyễn Đại Thọ An ninh Mạng 7 Mô hình m b o bí m tđả ả ậ Nguyễn Đại Thọ An ninh Mạng 8 Nguồn th. báo Giải thuật mã hóa Giải thuật giải mã Đích th.

Ngày tải lên: 15/03/2014, 16:20

... Support 49 Choosing the Routing Mode 50Viewing Routing Information 51Configuring Static Routing 52Configuring Dynamic Routing 53 Configuring the Routing Mode 57 Trang 5Configuring Router Advertisement ... settings Trang 26Configuring Networking The networking page allows you to configure networking settings This chapter contains the following sections: Configuring the WAN Wide area network configuration ... 145Configuring Access Control Rules 146Configuring Additional SNMP Information 146Performing a DNS Lookup 147Capturing and Tracing Packets 147 Configuring Local Logging 148Configuring Remote Logging

Ngày tải lên: 22/03/2014, 14:20

... 2Network Security• Security of network can be threatened in many possible ways • Two prominent ways in which network security is compromised: (i) Protocol level security: − Prevention against exploitation ... of network resources ◦ That is, high utility of resources in a proper manner • Network security is not restricted to ◦ Secure private communications as in classical cryptograph Trang 2Network Security• ... Trang 1Network Security• Network, such as Internet, is open to everybody ◦ Possibility of misbehavior or misuse of network resources → Compromise network utility • Network security is about

Ngày tải lên: 22/03/2014, 15:21