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Answer the following questions:
1. List the three fundamental security properties and for each give an example of a failure.
2. If the useful life of DES was about 20 years (1977-1999), how long do you predict the useful life of AES to be? Justify your answer.
3. Security decision making should be based on rational thinking and sound judgement. In this context critique five security design principles with suitable examples.
4. The HTTP protocol is by definition stateless, meaning that it has no mechanism for "remembering" data from one interaction to the next. (a) Suggest a means by which you can preserve state between two HTTP calls. For example, you may send the user a page of books and prices matching a user's query, and you want to avoid having to look up the price of each book again once the user chooses one to purchase. (b) Suggest a means by which you can preserve some notion of state between two web accesses many days apart. For example, the user may prefer prices quoted in euros instead of dollars, and you want to present prices in the preferred currency next time without asking the user.
5. Why is a firewall a good place to implement a VPN? Why not implement it at the actual server(s) being accessed?
Modify the attached code to include a exportToJSON method within the Cave object. This method should output the JSON version of our Cave, which should be identical to the JSON within Cave.dat for that particular Cave.
Discuss the difference between perception and reputation and explain how can organizational perception affect IT reputation?
For the network that you have chosen to characterize, list the MAC Address, IP Address, IP Subnet Mask, Gateway Information. Based on this information, explain the flow of information in and configuration of this network.
What security vulnerabilities and threats can you see? What measures would you put in place to remove or minimize the vulnerabilities - Choose all the necessary and suitable MAC address, IP address for interfaces and port addresses implied by the a..
The majority of Australian SMEs are not taking advantage of cloud computing services, though uptake is strengthening among individuals, according to new research.
A 1,024-bit message is used to generate a 24-bit hash. On the average, how many other messages could be expected to generate the same hash value? What is the probability that two massages that generate the same 24-bit hash?
Use a two-stage transposition technique to encrypt the following message using the key "Decrypt". Ignore the comma and the period in the message
Use whois at Network Solutions, netsol.com and/or whois.arin.net to find contact information and DNS servers for one organization. Also find the IP address range for their network. Print your results.
TCB subsets are said to leverage purely hierarchical domains ordered by privilege and explain the relation between these domains and protection rings.
Below are given of ciphertext, from Affine cipher. Determine the plaintext and key. Give a clearly written description of the steps you followed to decrypt each ciphertext.
Discuss some of the problems NATs create for IPsec security. (See [Phifer 2000]). Can we solve these problems by using IPv6? Why deployment of IPv6 has been slow to date. What is needed to accelerate its deployment?
How does RTSP differ from HTTP (a) in maintaining client state information; (b) in terms of in-band, out-of-band traffic?
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