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For the following types of possible attacks:
Sniffing-and-replay: the attacker Eve eavesdrops to the communications between Alice and Bob. Later, Eve re-uses Aliceâs messages to impersonate Alice against Bob.
Trojan-horse: the attacker Eve impersonates Bob by interacting with Alice, who authenticates herself to him. Later, Eve re-uses the values Alice sent her, to impersonate Alice to Bob.
(a) Which attacks are possible with the normal Unix (crypt) login?
(b) Which attacks are possible with the S/key identification-authentication method?
(c) Which attacks are possible with the the time-based token scheme?
A D5/2 term in the optical spectrum of 39 19K has a hyperfine structure with four components. Find the spin of the nucleus.
Identify the components of data model: Define the entities, primary keys, and relationships that are used to define the data model for your project.
Clipping algorithms are an important component of the creating a scene view. Explain why clipping is necessary. Choose an example of a boundary and a line and show how the endpoints of the clipped line can be calculated.
Why was it of interest--was it innovative, particularly nefarious, etc. Think about the item you choose critically. Why is it relevant and what are the possible ramifications.
Matrices so as to maximize, rather than minimize, number of scalar multiplications. Does this problem show optimal substructure?
The FCC created a set of frequencies for walkie-talkie radios. This set is called the family radio service and allows two radios to transmit up to a several-mile distance.
A farmer wants to enclose a rectangular field along a river on three sides. If 1,200 feet of fencing is to be used, what dimensions will maximize the enclosed area?
Compare the women in 1999 to the women in 2012 and to the men in 1999 and 2012.
Differentiate between multiprocessor systems and many-core systems in terms of power efficiency, cost benefit analysis, instructions processing efficiency,
The character just entered is an uppercase letter. If the entered letter isn't uppercase, display the message The character just entered is not an uppercase letter.
What is the importance of the order of tables in an SQL statement that uses FOR XML? When would you use FOR XML EXPLICIT? Explain, in your own words, why SQL with FOR XML cannot be used to construct an XML document having two multivalue paths.
Given the extended LAN shown in Figure 3.37, indicate which ports are not selected by the spanning tree algorithm.
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