Fundamentals of Network Security Graphic Symbols pptx

... protect. Fundamentals of Network Security Graphic Symbols Home Office Figure 1: Home office icon The Home Office has become an extension to the corporate network. More and more ... Figure 1: Policy manager or director icon One of the greatest challenges of network security is management and monitoring of hundreds or thousands of VPNs, routers, fi...

Ngày tải lên: 28/03/2014, 22:20

... networks. One of the most comprehensive treatments of security policy in networks with many firewalls and distinct security policies for sub-networks (and an excellent example of presentation) ... about the networking environment. This generally leads either to over or under management of resourses. One of the specific goals of this work is management of security configura...

Ngày tải lên: 14/02/2014, 16:20

... Network Security & Network Security & Preventing Hacker Preventing Hacker ATHENA – Training & Network Security ATHENA – Training & Network Security ĐÀO TẠO ... training@athenavn.com Level of Hacker Level of Hacker Denial of Services (DoS) ,DDOS Denial of Services (DoS) ,DDOS Deface website Deface website Viruses & Worms Viruses & Worms Data...

Ngày tải lên: 15/12/2013, 15:15

... Aspects of Network Security: Malware and Spam www.itu.int/ITU-D/cyb/cybersecurity/docs/itu-study-financial-aspects -of- malware-and-spam.pdf 9 3.2. The role of botnets Three principal types of ... spammers. Many but not all of the bullet-proof hosting services are outside of the country of the content provider. ITU Study on the Financial Aspects of Network Secur...

Ngày tải lên: 14/02/2014, 08:20

... following: a) MN visits new network b) New network obtains the address of old network c) New network requests context transfer to old network d) Old network transfers context of MN to new network e) After ... security associations between networks. This scheme reduces the total number of security associations to O(N), i.e, between the broker and N networks. Thus, whene...

Ngày tải lên: 14/02/2014, 16:20

... detecting network- security vulnerabilities, they may be comple- mented by a security assessment from professional security consultants. A security assessment is a concentrated analysis of the security ... best-managed security service companies offer a wide range of services. Typical Services from a Security Service Provider Network Monitoring 24x7x365 Security servic...

Ngày tải lên: 14/02/2014, 16:20

... n d 17 481968572106750915091411825223071697 12 c d letter l encrypt: decrypt: 8: Network Security 8-1 Chapter 8: Network Security Chapter goals: ❒ understand principles of network security: ❍ cryptography and its many uses beyond “confidentiality” ❍ ... chaining 8: Network Security 8-12 Symmetric key crypto: DES initial permutation 16 identical “rounds” of function appli...

Ngày tải lên: 05/03/2014, 21:20

... tools as they are released. Security sites such as PacketStorm and SecurityFocus offer a good starting point. Below is a listing of recommended security sites which many professionals access daily ... universal use, often in multiple locations within the organisation, today's computer systems may present major security problems. The growth of networking, the profusion of keyb...

Ngày tải lên: 05/03/2014, 21:20

... Private Network (VPN) is a technology to construct a private network over public networks. OpenVPN is one of the most popular soware-based VPN products and has high flexibility. e usability of OpenVPN ... shown in Figure1. Figure 1. e number of blocks affected by CBC mode. Impact of Network Security on Speech Quality 3 Figure1 above illustrates the splitting of one RTP pa...

Ngày tải lên: 05/03/2014, 23:20

... Output FeedBack (OFB) Output FeedBack (OFB)  message is treated as a stream of bits message is treated as a stream of bits  output of cipher is added to message output of cipher is added ... encryption on noisy channels Output FeedBack (OFB) Output FeedBack (OFB) Cryptography and Cryptography and Network Security Network Security Chapter 6 Chapter 6 Fourth Edi...

Ngày tải lên: 06/03/2014, 16:20