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1. In the Diffie-Hellman algorithm for key exchange, suppose Alice sends Bob (19, 3, 5) corresponding to (p, g, ga). Bob responds with (12). Determine the session key.2. Consider RSA encryption with P = 7, q = 11.a. List four legal values for eb. Decrypt the cipher c = 321 assuming it was encrypted using the smallest value of e from the possible values (Assume the encryption is done one digit at a time).3. In the class, we discussed the side channel attack of deriving the private key bits over a network using selected plain texts and monitoring the time to sign the text. Describe how you will continue the attack to derive the second bit of the private key (note that in class, we discussed the derivation of only the first bit).4. Describe the difficulties in distributing keys in resource-constrained environments such as sensor networks and RFIDs. How is this problem addressed in industry? 5. Compare the complexities of elliptic curve crypto systems with the RSA scheme.
What special consequences do you foresee from information security breaches confined to online retail banking compared to online commercial banking?
Read the article "Cyber Security Risk: Perception vs. Reality in Corporate America". After reading the article, please post your thoughts on the perception vs. reality of a cyber threat against a SCADA system.
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.
Identification of preventative controls and the development of recovery strategies and Explanation of the information technology (IT) contingency planning process to include an understanding of the required business impact analysis
Describe the properties and usage of digital signatures. Evaluate digital signatures based on their legal ability to stand up in court
Plan a high-level backup and disaster recovery plan for a business. Discuss the security of the network and suggest best practices for securing the business network.
MN502: Network Security Identify three current or future security issues in SDN and develop theoretical security framework against one of the identified security issues
Describe an instance of a file that contain evidence of its own integrity and authenticity and describe a malware attack that causes the victim to receive physical advertisements.
Suppose that Eve runs a key server. Alice downloads a key from the key server which Eve claims is Bob’s public key. Bob downloads a key from the key server which Eve claims is Alice’s public key.
What is the difference between message confidentiality and message integrity? Can you have confidentiality without integrity? Can you have integrity without confidentiality? Please be specific and justify your answer.
Alice and Bob choose the numbers 6 and 10 privately. What will be the public values they transmit and what would be the final secret computed?
Write a two- page letter to describe what security threats she is facing and how she can decraese these threats. Remember that you are writing for friend, not for a teacher.
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