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Public Key Encryption: If you have access to public keys n and e, it is possible to reverse the public keys from them. One method is to factor the value of n to discover p and q, then to determine d by finding a value k such that k(p-1)(q-1) + 1 divides evenly by e, the quotient being d.
If you have n = 77 and e = 7 for public keys, what are the private keys (n and d)?Show how you got the answer.
Why is one-time password system considered more secure than the basic authentication system? Give at least two reasons.
Sunnyville Corporation is in the business of selling home appliances. Sunnyville Corporation has over 50 sales agents across the country. The management at Sunnyville Corporation has decided to implement an online sales program.
Iit is highly desirable that whoever treats you has access to your record. Using your justification how would you use prevention, detection and recovery to secure the records?
What are your thoughts regarding vulnerabilities surrounding the computing world today and the risks of computers being attacked.
The earliest LANs used coaxial cable as a transmission medium. Over time, unshielded twisted pair wiring emerged as a better and faster medium.
Consider following protocol for sending an encrypted message from Alice to Bob in presence of Key Distribution Center (KDC).
concept of Message Digest, File Carving, MD5, Locard's Exchange, Parker's categories, computer-related crime as suggested by Donn Parker, computer systems as sources of digital evidence
Consider the plain (i.e., non-padded) RSA public-key encryption scheme. Encrypt the message m = 12 using the public key pk = (N,e), where N = 35 and e = 3.
Analyse security procedures
By configuring DHCP with an Alternate IP Address Configuration. Describe how this technique could be used in an IT environment of your choosing.
Defacement, Infiltration, Phishing, Pharming, Insider Threats, Click Fraud, Denial of Service, Data Theft/Loss, IP Whitelisting and IP Spoofing, recursive PHP functio, worm and a virus, hash on a string using MD5
Show that a passive eavesdropper that observes a single execution of the protocol can recover key s and impersonate the tag.
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