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(a) Using Fermat's theorem, find 3201 mod 11.
(b) Explain how the Diffie-Hellman key agreement protocol works and what its purpose and main properties are.
Consider a Diffie-Hellman scheme with a common prime q = 11 and a primitive root α = 2.
(i) If user A has public key YA = 9, what is A's private key XA?
(ii) If user B has public key YB = 3, what is the shared secret key K, shared with A?
(c) Briefly explain the Output Feedback (OFB) mode of operation stating its advantages, disadvantages and uses.
(a) Describe the concept of zero knowledge proofs. Give a practical example. (b) Explain how a one way hash function works. (c) What are message authentication codes? (d)
1. For this project, assume that an organization has five servers. Server 1 has a TCO of $25,000, Servers 2 and 3 have a TCO of $37,000 each, and the remaining two servers— Servers
Secure Socket Layer (SSL) accepts a combination of asymmetric and symmetric (public-key) encryption to accomplish integrity, confidentiality, authentication and non-repudiation for
IP DATAGRAM Various options can be included to IP header, e.g., source route, record route and timestamp. Header with no function has H. LEN field value 5; data starts immedia
What is information security Information security protects information (and facilities and systems which store, use and transmit it) from a broad range of threats, in order to p
QUESTION: a) Explain four issues that are generally addressed in the Needs Analysis phase in the building-block approach to network design. b) Sketch a typical hybrid star-b
Get a copy of Metasploitable at Make">http://sourceforge.net/projects/metasploitable/files/Metasploitable2/ Make sure to follow these directions very carefully. You will get po
PROCESSING AN INCOMING ARP MESSAGE When an ARP message reaches, the protocol specifies that the receiver must operate two basic steps. First the receiver finds the sender's add
Government funding has been given to a university consortium establishing a repository of resources for school teachers. They have engaged you to develop a search facility for teac
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