Privacy-preserving Data Aggregation in Mobile

Phone Sensing

Abstract

Mobile phone sensing provides a new paradigm for peopleto efficiently perform sensing tasks. In a typical mobilephone sensing application, a data aggregator recruitsa group of mobile phone users to perform sensing tasks.With various kinds of sensors embedded in their mobilephones, these users perform the sensing task and thensend the data back to the data aggregator through thecommunication network.

Existing system

Mobile phone sensing provides a promising paradigm forcollecting sensing data and has been receiving increasing attentionin recent years. Different from most existing works, which protect

participants’ privacy by hiding the content of their data and allow theaggregator to compute some simple aggregation functions, we proposea new approach to protect participants’ privacy by delinking data fromits sources. This approach allows the aggregator to get the exact distributionof the data aggregation, and therefore enables the aggregator toefficiently compute arbitrary/complicated aggregation functions.

Disadvantages

1. Efficiency is less

Proposed system

In particular, we first present an efficient protocol that allows anuntrusted data aggregator to periodically collect sensed data from agroup of mobile phone users without knowing which data belongs towhich user. Assume there are n users in the group. Our protocolachieves “n-source anonymity” in the sense that the aggregator onlylearns that the source of a piece of data is one of the n users. Then,we consider a practical scenario where users may have different sourceanonymity requirements and provide a solution based on dividing usersinto groups. This solution optimizes the efficiency of data aggregationand meets all users’ requirements at the same time.

Advantages

  1. Efficiency is more.

System Configuration:-

Hardware Configuration:-

Processor-Pentium –IV

Speed- 1.1 Ghz

RAM- 256 MB(min)

Hard Disk- 20 GB

Key Board- Standard Windows Keyboard

Mouse - Two or Three Button Mouse

Monitor- SVGA

Software Configuration:-

Operating System: Windows XP

Programming Language: JAVA

Java Version : JDK 1.6 & above.

Back end :MY SQL

Modules

Key Generation and Distribution

Privacy Definition

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