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1. You have been hired to provide advice about the use of cryptography to the developer of new two products within a company.
a. Group A is developing a product which will encrypt each user's data before storing it on the hard disk, and decrypt it as it is accessed. Confidentially should be preserved. They want to know what encryption algorithms to use, and how it should be used to achieve their goals. What advice would you give this group?
b. Group B is developing a product which will allow users to send encrypted messages to other users around the world. Users typically do not know each other directly, but they should be able to send messages for which integrity and confidentiality are preserved. They want to know what encryption algorithm(s) to use, and how it (they) should be used to achieve the goals. What advice would you give this group?
Compute the total time required to transfer a 1000KB file on a 1Mbps link with an RTD of 100msec ans a packet size of 1 KB in the following cases.a).
What are some benefits and drawbacks of using social networking?
One-way to solidify the concepts of client/server computing and interprocess communication is to develop the requirements for a computer game which plays "Rock, Paper, Scissors" using these techniques.
Richard Sclove argues that we must do more to acknowledge technoogy's 'polypotency.' What does this term mean, why does Sclove think that it is significant to acknowledge this characteristic of technology?
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Write a two-and-a-half-page paper explaining network management system identified on acurrently-dated vendor website (Cisco, HP, Sun, SolarWinds, CA, Network General, IBM, etc.).
Write down the analogous steps in dimensioning a computer network?
How many fram need to sent? Determine the size of data in each frame?
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Let RTP session consisting of four users, all of which are sending and receiving packets to same multicast address. How much RTCP bandwidth will each receiver be allocated?
Consider improved version of Vigenere cipher, where instead of using multiple shift ciphers, multiple mono-alphabetic substitution ciphers are used.
Find out how many users a cell can support for a 5% call---blocking rate. Assume that each user produces 35mE of load in the busy hour.
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