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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. Assume that discretionary access controls allow anyone access unless otherwise specified.
Decrypt to recover the plaintext. What is the decryption function, and the recovered plaintext? What type of cipher is this?
Security topology covers four primary areas of concern (design goals, security zones, technologies, and business requirements). Describe each area including key topics in each area. Discuss software threats.
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..
An earlier version of WTLS supported a 40-bit XOR MAC and also supported RC4 stream encryption. Show that this scheme doesn't give message integrity protection.
Assume that Alice shares a secret s with her company's server computer. When Alice is on a trip, she tries to store an important message in the CEO's account directory.
Using only asymmetric encryption algorithms, describe a process that would allow Alice to send a message that can only be read by Bob. You should include any steps taken by Bob that allow him to read the message.
Below are ciphertext from Vigenere cipher. Determine plaintext and key. Give a clearly written description of steps you followed to decrypt each ciphertext.
Implement buffer overflow in c++ And attacking the devises by doing buffer overflow.
Phising email It is multipart, what are the two parts? The HTML part, is it inviting the recepient to click somewhere? What is the email proporting to do when the link is clicked?
The Internet evolution is and is very fast and the Internet exposes the connected computers to attacks and the subsequent losses are in rise.
You decide to prepare a security checklist for New Century. Prepare a list of security issues that the firm should evaluate and monitor. Be sure to organize the items into categories that match the five security levels.
Pseudo-random generators, pseudo-random functions and pseudo-random permutations
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