security protocols in internet ppt

... the origin of the IP packet and ensure its integrity  To detect message replays using sliding window  Encapsulating security payload (ESP)  Encrypt and/or authenticate IP packets  Internet ... a sliding window to thwart message replay attacks A B C Given an incoming packet with sequence # s, either s in A – It's too old, and can be discarded s in B – It's in the window. ... Email Security Protocols  5.6 Kerberos: An Authentication Protocol  5.7 SSH: Security Protocols for Remote Logins J. Wang. Computer Network Security Theory and Practice. Springer 2009 Building...

Ngày tải lên: 06/03/2014, 16:20

... Computer Network Security Theory and Practice. Springer 2009 SSL Structure J. Wang. Computer Network Security Theory and Practice. Springer 2009 Chapter 5 Network Security Protocols in Practice Part ... SSL/TLS: Security Protocols at the Transport Layer  5.5 PGP and S/MIME: Email Security Protocols  5.6 Kerberos: An Authentication Protocol  5.7 SSH: Security Protocols for Remote Logins J. ... 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 PGP and S/MIME: Email Security Protocols  5.6...

Ngày tải lên: 06/03/2014, 16:20

... you’re signing all msgs with that hash! 46 Eavesdropping/Server Database Stealing • pwd -in- clear, if server stores h(pwd), protects against database stealing, but vulnerable to eavesdropping • ... Subject to eavesdropping – Subject to on-line guessing – Subject to off-line guessing 16 Public Key Crypto • Two keys per user, keys are inverses of each other (as if nobody ever invented division) – ... salt) 20 Why is D-H Secure? • We assume the following is hard: • Given g, p, and g X mod p, what is X? 38 On-Line Password Guessing • If guessing must be on-line, password need only be mildly unguessable •...

Ngày tải lên: 22/03/2014, 14:20

... conducting quality training evaluations, reviewing the Quality Evaluation Guidelines, defining additional training needs, developing training standards, prioritizing training activities, coordinating ... of a continuing effort in organizing and leading the global community under the auspices of the Global Initiative to Combat Nuclear Terrorism. This joint U.S Russian initiative, involving 53 ... Instructional System Design for training development. The KTTC training team has adopted a “train the trainer” approach; such an approach provides for the long-term sustainability of a training...

Ngày tải lên: 29/03/2014, 18:20

... signaling protocols perform plays a critical role in designing, building, maintaining, and troubleshooting a Cisco VoIP implementation. Each proto- col also plays a direct role in implementing ... in product selection and integration. Specifically, Cisco has predominately implemented the following five different signal- ing protocols amongst their rapidly expanding telephony product line: • ... Bachelors of Science in Mechanical Engineering and a Masters of Science in Mechanical Engineering from Bradley University in P eoria, IL. Chris can be reached at chrisolsen@earthlink.net. Copyright...

Ngày tải lên: 10/12/2013, 14:15

... sending a file out into the Internet containing a list of the Microsoft Office registration information as well as the Internet addresses of the infection chain. So what? The interesting thing ... system.ini, “run=“ or “load=“ in win.ini, or the registry locations above, will contain a reference to the server program. Cleaning involves removing the offending entries and keys and deleting ... sent onto the Internet. Even the tightest site in which I have worked allowed users inside the facility to initiate a connection to the Internet. Traffic originating from the inside is also...

Ngày tải lên: 24/01/2014, 09:20

... Without Writing. Just fill in a few blanks and presto, you have a winning sales letter in minutes, instead of weeks. Internet Business Beginners’ Guide Working-At-Home-Business.com   2002 ... starting and marketing an Internet business from Corey Rudl - the most successful online business expert today. Internet millionaire Corey Rudl has built up his successful business, the Internet ... Working At Home Business http://www.working-at-home-business.com Internet Business Beginners’ Guide Working-At-Home-Business.com   2002 Copyright Page 20 of 78 You also gain a lot...

Ngày tải lên: 14/02/2014, 05:20

... 2011 using search terms including ‘online child* safety, ‘online child* health’, Internet child* safety’, Internet child* access’, ‘child* activity Internet , ‘adolescent activity Internet , ... 2011 using search terms including Internet pharmacy’, ‘online pharmacy’, Internet pharmacy safety’, ‘safety online medic*’, 7 ‘safety Internet medic*’, ‘online pharmacy safety’, ‘online counterfeit ... people into purchasing and installing it. Country Malware ratio (per e-mail) South Africa 1 in 81.8 United Kingdom 1 in 139.0 Canada 1 in 328.8 Australia 1 in 365.8 Germany 1 in 393.1 Denmark 1 in...

Ngày tải lên: 18/02/2014, 00:20

... In addition to assisting in spoofing prevention, the SC can also be used to pinpoint the origin of spoofing attacks. For example, when a malicious user tries to contaminate the ARP table in ... access switch residing in the basement of a building aggregating user traffic within the building. In a typical ETTx deployment, a building often consists of business users (in the ground floor) ... sharing the same IP subnet. This makes the security problem more interesting. In this paper, we will focus on the security issues that arise in ETTx and introduce a solution which is a combination...

Ngày tải lên: 05/03/2014, 23:20

... logging without compromising performance. The cost of cloud computing in information security management includes the costs of migrating, implementing, integrating, training, and redesigning. ... Computing in information security management According to Bendandi (2009, p. 7) the top security benefits of cloud computing includes: ♦ The security and benefits of scale that all kinds of security ... continuity in an event of a security hole. Cloud computing weakness include list of issues such as the security and privacy of business data being hosted in remote 3rd party data centers, being...

Ngày tải lên: 05/03/2014, 23:20

... and destination IP addresses only. B Characterizing TCP-friendly flows Since congestion control was introduced to TCP in 1988 [Jac88], TCP flows in the Internet have used packet drops as an indication ... connection. Certainly in a specific scenario with all else being equal, a TCP that re- frains from increasingits congestion windowfrom time to time might increase its own throughput by decreasing the aggregate packet ... proposed in this paper would be the ubiquitous deployment, at all con- gested routers in the Internet, of per-flow scheduling mecha- nisms such as round-robin or fair queueing scheduling. In gen- eral,...

Ngày tải lên: 15/03/2014, 22:20

... thích với Windows và Mac. Người dùng Linux có thể không chia sẻ được máy in của mình nhưng vẫn có thể gửi thông tin in ấn đến máy in của người khác bằng cách sử dụng trang web Cloud Print. Một ... máy in hỗ trợ sẵn Cloud Print, do đó bạn có thể kết nối mạng và chia sẻ chúng trực tiếp mà không cần cài đặt Google Chrome. Chia sẻ máy in thông qua kết nối Internet Homegroup của Windows ... nhiều so với dịch vụ chia sẻ máy in PrinterShare. Sau khi chia sẻ máy in với một ai đó, họ có thể in nó từ trình duyệt web của mình, thậm chí bạn có thể yêu cầu in tài liệu từ một máy tính ở...

Ngày tải lên: 16/03/2014, 12:20

... to network security? Pct% Preventing attacks 32% Fast detection and containment 16% Network intelligence 15% Baselining against best practices 23% IT governance including policies ... As can be seen, the largest sectors include financial services (including banking, insurance, credit cards, investment management), public sector (including federal, state and local government ... about network security Q1. How secure is your IT infrastructure in terms of preventing network security breaches (cyber attacks)? Please use the following 10-point scale from 1 = insecure to...

Ngày tải lên: 28/03/2014, 22:20

Ngày tải lên: 29/03/2014, 20:20

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 20/06/2014, 22:20

Ngày tải lên: 21/06/2014, 05:20

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 28/06/2014, 17:20

Ngày tải lên: 28/06/2014, 23:20