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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.
What does privacy mean to you? Is privacy a right or a privilege? How should one's privacy be legally protected or secured, especially when using the Internet?
Read and summarize "Big iron lessons, Part 5: Introduction to cryptography, from Egypt through Enigma"
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.)
Implement both encryption AND decryption of the Vigenere cipher with 26 English letters and 1 space character
Write a report on DENIAL OF SERVICE (DoS).
Cross-talk, and other forms of interference are a significant issue in any communications infrastructure. Compare and contrast how this problem would manifest for analog data transmitted
Give the security levels Top SECRET,SECRET,CONFIDENTIAL, and UNCLASSIFIED (order from highest to lowest), and catergories A, B,C, specify what type of access (read,write, both or neither) is allowed in each of the following situations .
List at three key things employees should remember on data privacy, security practices, and the legal implications of data privacy. The document should be something which draws someone to look at it while still maintaining professional appearan..
Discuss two drawbacks of steganography Describe the operation of a Trojan Horse program. How can we protect our computer from such a program
Define Physical secuirty and three types of threats related with physical security. Write down the steps in designing and choosing a secure site in detail.
single access point (AP), wireless network, CSMA/CA, goals of information security, Wireless LANs, wireless hacking process, Wired Equivalent Privacy (WEP), Open System Authentication and Shared Key Authentication, Initialisation Vector (IV), RADIU..
Using RSA User1 ciphers his text M with User2 public key and he gets the cipher text C=371 he sends the Ciphertext to User2 who decrypts the cophertext with his private key.
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