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Design a privacy-preserving crowd sensing system. This system works in three steps:
Step 1: a remote data collector publishes sensing tasks to all mobile users (e.g., through smartphones carried by users) in the system. A task contains a task identifier and a task description.
Step 2: the mobile users who are interested in a task request the collector to assign the task to them and the collector approves some of requests.
Step 3: those mobile users who are assigned the task submit sensing data to the collector.For privacy reasons, each user does not want the collector to know which tasks she/he has requested and submitted data for.
For trust reasons, the collector wants to make sure only authorized users (i.e., those in the system) can request task and each user can only request each task once. Also only the users assigned a task can submit data for this task. Design a protocol to meet these goals, and clearly describe how it works in each step. Your protocol can have some initialization step before the above Step 1. Here,collusion between authorized users and outside users is not considered. Also, you can assume that no user will be compromised and controlled by the attacker.
how to convert a string of binary into decimal and a decimal into binary using java
Design a program that ask for the price of each item, and then displays the subtotal of the sale, the amount of sales tax and the total. Assume the sales tax is 6 percent. Need help with this question.
Read the paper by Alan Turing, "Computing Machinery and Intelligence". In this paper, he describes a test that could be used to determine if a machine is intelligent. He referred to the test as the "Imitation Game".
Create a Visual Basic .NET Windows Application with the following user requirements:
Write a program that asks the user to input the grade of the student. If the grade is equal or greater than 60, the program prints the word "pass", otherwise it prints the word "fail".
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Provide a least two examples of security knowledge that would assist you in preparing for or preventing a threat. Explain the time-sensitive nature of the knowledge.
In the final round of a TV game show, contestants have a chance to increase their current winnings of $1 million to $2 million. If they are wrong, their prize is decreased to $500,000. A contestant thinks his guess will be right 50% of the time. Shou..
1. Create a new table for Suppliers' contact information and set the primary key and appropriate data types for the fields. The table should at least contain the following information: a. Company name and address b. Representative's name, pho..
What kinds of support and tools are available with Visual Basic? Sum-up your research, and make sure to reply to each of the questions.
Recognize all potential security threats on home personal computer. Recognize some of techniques the attacker might use to access some information on system.
Identify each of the risk tolerance categories. Compare and contrast each and identify the category.
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