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Bob believes that he has come up with a nifty hash function. He assigns a numeric value VChar to each letter in the alphabet equal to the letter's position in the alphabet, i.e., VA = 1, VB = 2, ..., VZ = 26. For a message, he calculates the hash value H = (VChar 1 x VChar 2 x VChar 3 ...x VChar N) mod(26). Bob uses this function to send a one-word message, PLANE, to his banker Bill, along with his calculated hash value for the message. Alice is able to intercept the message, and generates an alternative message that has a hash value that collides with Bob's original hash value. Show a message that Alice may have spoofed, and demonstrate that its hash value collides with Bob's original hash.
Describe a procedure that selects a key uniformly at random from among the keys in the hash table and returns it in expected time O(L.(1 + 1/α)).
Conduct a comprehensive study about web-based email implementation in gmail. Optionally, you may use sniffer like wireshark or your choice to analyze the communication traffic.
What RC4 key value will completely invert S after the initial permutation (so that S[0] = 255, S[1] = 254, ..., S[254] = 1, S[255] = 0)? Show your work. (Explain how you got this.)
Write a research paper about data encryption techniques. Your content should include the following: Business advantages and disadvantages of full disk encryption, compared to other types of encryption techniques.
This case study about a company named Magna International, a Canada based global supplier of automotive components, modules and systems. Along with the company analysis have been made in this assignment.
Discuss two drawbacks of steganography Describe the operation of a Trojan Horse program. How can we protect our computer from such a program
Read and summarize "Big iron lessons, Part 5: Introduction to cryptography, from Egypt through Enigma"
How does RTSP differ from HTTP (a) in maintaining client state information; (b) in terms of in-band, out-of-band traffic?
How will your company ensure adequate destruction of the materials thus ensuring an individual's privacy? Will any state-wide, national, or industry standards be met? If so, which ones and how?
WAP protocol, cellular network infrastructure, SSL protect against eavesdropping, network datagrams (packets) be protected at the network layer, pin and fingerprint, Certificate Revocation, Public Key Infrastructure, modern symmetric algorithm bl..
Answer the following in relation to a scenario where Bob and Alice use Kerberos for mutual authentication. When Bob receives a ticket from Alice, how does he know it is genuine?
You have taken a job with a software user who has contracted your previous employer to develop a system for them. However, you have also a responsibility of confidentiality to your previous employer.
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