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Why are timestamps used in the Kerberos protocol? 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. This message needn't be encrypted since confidentiality is not important here, but the CEO needs to be guaranteed that the message really is from someone who knows the secret s (e.g. Alice) when the CEO opens his/her computer the next day. A naïve protocol to achieve this may look like this: Alice-->Server: "This is Alice, I have an important message to forward to the CEO" Server-->Alice: "OK, please encrypt R" (where R is a random nonce) Alice-->Server: "Es(R)" (that is, R is encrypted with the secret s) Server-->Alice: "Please send the message" Alice-->Server: "The CEO needs to attend a meeting in Liverpool on May 1, 2006" The server stores this message in the CEO's directory Is this protocol secure? If not, how do you feel it could be modified to make it so?
List and illustrate 5 RFCs that describe the IMAP protocol. Print and read the first two pages of one of these RFCs.
Explain four different types of wireless technologies in a 350- to 700-word paper in APA format. Describe the characteristics and properties of each signal type, and how each can be used.
Write a 1-2 page paper listing configuration changes to present to the manager, who has technical background, which details the plan and your timeline for implementation.
What occurs if office in Baton Rouge, Louisiana, also should be connected to both Memphis and Laramie at a rate of 512 kbps? Which solution is cheaper now?
Consider a simplified TCP,S AMID algorithm where the congestion size is measured in number of segments not in bytes in additive increase the congestion window size in the long run will these two connections get the same share of the bandwidth o..
Design the network for new building and define the subnet and define the topology that will be used.
fiction corporation a large national retail chain of 10000 employees and 500 retail outlets is migrating its one
Use the Internet to identify at least two software change management products. Contrast their features and costs.
List six access technologies. Classify each one as residential access, company access, or wide-area wireless access.
Employees will open their Web browser and enter personnel.mycompany.com in URL address box to browse this Web site. Write down steps which you take so that each computer in company can browse site using this URL?
We need to create three types of design decisions according to: i) Choose an appropriate frame size based on constraints. ii) Partition jobs into slices.
Create several duplicate scenarios and modify the interarrival times for all the Ethernet stations to 0.0008, 0.002, 0.003, 0.005, and 0.006, respectively.
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