NT1330 Unit 3 Assignment 1

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One of the issues of privacy for LBSs is that of providing the technology in a way that users have a significant level of control. Those whose location is being tracked must be given some understanding about and control over who is using this information. Without this control, a significant asymmetry exists between those who carry the technology (the observed) and those who make use of the information it provides (the observer) [2]. Jiang et al suggest that the key to managing privacy within ubiquitous computing is the principle of minimum asymmetry [7].They define the principle of minimal asymmetry as –
“A privacy aware system should minimize the asymmetry of information between the data owners and data collectors and data users, by:
• Decreasing the flow of information from data owners to data collectors and users
• Increasing the flow of information from data collectors and users back to data owners”
3.1.2 Asymmetrical Method
In most approaches to location based technology, there are three parties that correspond to the principle of minimal asymmetry [3] –
• The holder (the data owner) who carries a …show more content…
The pseudonym should also be encrypted with a key which has been provided to the third party to avoid unauthorized access.
3.1.4 Deployment
To support this system, the location service should be able to store the location triplets, be able to update the pseudonyms when required and encrypt stored pseudonyms. Only when the mobile device communicates with the service provider does any work need to be done. Since only the differences from the previous signal need to be stored, the cost of data storage overhead is minimal. Precise location estimates which need more computation can be done on demand.
The service provider can sell the data to third parties without compromising the subscribers as the data is stored in anonymized
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