Difference between revisions of "Miettinen2015"
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|doi=10.1145/2714576.2714634 | |doi=10.1145/2714576.2714634 | ||
|abstract=<p>In the recent years, new services and businesses leveraging location-based services (LBS) are rapidly emerging. On the other hand this has raised the incentive of users to cheat about their locations to the service providers for personal benefits. Context-based proofs-of-presence (PoPs) have been proposed to enable verification of users\’ location claims. However, as we show in this paper, they are vulnerable to context guessing attacks. To make PoPs resilient to malicious provers we propose two complementary approaches for making context-based PoPs: one approach focuses on surprisal filtering based on estimating the entropy of particular PoPs in order to detect context measurements vulnerable to such attacks. The other approach is based on utilizing longitudinal observations of ambient modalities like noise level and ambient luminosity. It is capable of extracting more entropy from the context to construct PoPs that are hard to guess by an attacker even in situations in which other context sensor modalities fail to provide reliable PoPs.</p> | |abstract=<p>In the recent years, new services and businesses leveraging location-based services (LBS) are rapidly emerging. On the other hand this has raised the incentive of users to cheat about their locations to the service providers for personal benefits. Context-based proofs-of-presence (PoPs) have been proposed to enable verification of users\’ location claims. However, as we show in this paper, they are vulnerable to context guessing attacks. To make PoPs resilient to malicious provers we propose two complementary approaches for making context-based PoPs: one approach focuses on surprisal filtering based on estimating the entropy of particular PoPs in order to detect context measurements vulnerable to such attacks. The other approach is based on utilizing longitudinal observations of ambient modalities like noise level and ambient luminosity. It is capable of extracting more entropy from the context to construct PoPs that are hard to guess by an attacker even in situations in which other context sensor modalities fail to provide reliable PoPs.</p> | ||
|month=4 | |||
|year=2015 | |||
|booktitle=AsiaCCS 2015 (17\% acceptance rate for full papers) | |booktitle=AsiaCCS 2015 (17\% acceptance rate for full papers) | ||
|title=I Know Where You are: Proofs of Presence Resilient to Malicious Provers | |title=I Know Where You are: Proofs of Presence Resilient to Malicious Provers | ||
|entry=inproceedings | |entry=inproceedings | ||
| | |pdf=Miettinen2015.pdf | ||
}} | }} | ||
Latest revision as of 18:37, 9 November 2021
| Miettinen2015 | |
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| author | Markus Miettinen and Majid Sobhani and Thien Duc Nguyen and Jon Rios and Sudha Yellapantula and N. Asokan and Ahmad-Reza Sadeghi and Farinaz Koushanfar |
| booktitle | AsiaCCS 2015 (17\% acceptance rate for full papers) |
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| month | 4 |
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| title | I Know Where You are: Proofs of Presence Resilient to Malicious Provers |
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| year | 2015 |
| doi | 10.1145/2714576.2714634 |
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| url | http://dl.acm.org/citation.cfm?id=2714634 |
| Miettinen2015.pdf | |
Email:
farinaz@ucsd.edu
farinaz@ucsd.edu
Address:
Electrical & Computer Engineering
University of California, San Diego
9500 Gilman Drive, MC 0407
Jacobs Hall, Room 6401
La Jolla, CA 92093-0407
Electrical & Computer Engineering
University of California, San Diego
9500 Gilman Drive, MC 0407
Jacobs Hall, Room 6401
La Jolla, CA 92093-0407
Lab Location: EBU1-2514
University of California San Diego
9500 Gilman Dr, La Jolla, CA 92093
University of California San Diego
9500 Gilman Dr, La Jolla, CA 92093