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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.
Determine whether or not the following IPv6 address notations are correct.
To add new menu items to an MFC application, you start by going to what view? So the menus are stored in what kind of files?
Draw the final figure in Red-black tree by inserting the abbreviations of states NY, IL, GA, RI, MA, PA, DE, IN, VT, TX, OH, and WY into an empty tree in that order. Describe those steps where red-black rules are violated and what actions you have..
Although the subsequent code compiles and runs, the programmer broke some major readability rules - Describe at least three changes that would make it easier for other programmers to read and understand the code.
Discuss which types of portfolio seem best suited for you, considering the specific IT areas you have targeted. Would a PDF portfolio, which you can e-mail, or a website be best
How does a database system generate XML document from database data? What is the importance of the order of tables in a SQL statement that uses FOR XML? (at least 200 words)
Describe a pipelined datapath needed to support the following instruction. Also specify the values of control signals using the diagram in the text book.
Create derived subclass called BrightEyes for the italicized class code below.
The U.S. Convert to a Zero Personal Income Tax
Import the exploring_acap_grader_h1_Transfer.xlsx Excel workbook into a table named Transfer Schools. While importing the data, choose StudentID as the primary key field. Ensure StudentID has a data type of Short Text. Change the StudentID field size..
You are responsible for checking suitcases for secret compartments in which bulky items like jewelry might be hidden. Explain procedure you would follow to check for these compartments.
You are the Payroll Manager for your employer. Your payroll clerk has submitted the worksheet displayed here. All employees earn their regular pay rate times the hours worked plus an overtime bonus of 50% of the hours worked in excess of 40 hou..
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