Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker

Markulf Kohlweiss; Sebastian Faust; Lothar Fritsch; Bartek Gedrojc; Bart Preneel

doi:10.1007/978-3-540-75551-7_6

Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker

Markulf Kohlweiss, Sebastian Faust, Lothar Fritsch, Bartek Gedrojc, Bart Preneel

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Secure processing of location data in location-based services (LBS) can be implemented with cryptographic protocols. We propose a protocol based on oblivious transfer and homomorphic encryption. Its properties are the avoidance of personal information on the services side, and a fair revenue distribution scheme. We discuss this in contrast to other LBS solutions that seek to anonymize information as well as possible towards the services. For this purpose, we introduce a proxy party. The proxy interacts with multiple services and collects money from subscribing users. Later on, the proxy distributes the collected payment to the services based on the number of subscriptions to each service. Neither the proxy nor the services learn the exact relation between users and the services they are subscribed to.

Original language	English
Title of host publication	Privacy Enhancing Technologies PET 2007
Publisher	Springer
Pages	77-94
Number of pages	18
ISBN (Electronic)	978-3-540-75551-7
ISBN (Print)	978-3-540-75550-0
DOIs	https://doi.org/10.1007/978-3-540-75551-7_6
Publication status	Published - 2007
Event	7th Workshop on Privacy Enhancing Technologies - University of Ottawa, Ottawa, Canada Duration: 20 Jun 2007 → 22 Jun 2007 https://petsymposium.org/2007/

Publication series

Name	Lecture Notes in Computer Science
Volume	4776

Conference

Conference	7th Workshop on Privacy Enhancing Technologies
Abbreviated title	PET 2007
Country/Territory	Canada
City	Ottawa
Period	20/06/07 → 22/06/07
Internet address	https://petsymposium.org/2007/

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10.1007/978-3-540-75551-7_6

https://link.springer.com/chapter/10.1007%2F978-3-540-75551-7_6

Cite this

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title = "Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker",

abstract = "Secure processing of location data in location-based services (LBS) can be implemented with cryptographic protocols. We propose a protocol based on oblivious transfer and homomorphic encryption. Its properties are the avoidance of personal information on the services side, and a fair revenue distribution scheme. We discuss this in contrast to other LBS solutions that seek to anonymize information as well as possible towards the services. For this purpose, we introduce a proxy party. The proxy interacts with multiple services and collects money from subscribing users. Later on, the proxy distributes the collected payment to the services based on the number of subscriptions to each service. Neither the proxy nor the services learn the exact relation between users and the services they are subscribed to.",

author = "Markulf Kohlweiss and Sebastian Faust and Lothar Fritsch and Bartek Gedrojc and Bart Preneel",

year = "2007",

doi = "10.1007/978-3-540-75551-7_6",

language = "English",

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series = "Lecture Notes in Computer Science",

publisher = "Springer",

pages = "77--94",

booktitle = "Privacy Enhancing Technologies PET 2007",

address = "United Kingdom",

note = "7th Workshop on Privacy Enhancing Technologies , PET 2007 ; Conference date: 20-06-2007 Through 22-06-2007",

url = "https://petsymposium.org/2007/",

}

Kohlweiss, M, Faust, S, Fritsch, L, Gedrojc, B & Preneel, B 2007, Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker. in Privacy Enhancing Technologies PET 2007. Lecture Notes in Computer Science, vol. 4776, Springer, pp. 77-94, 7th Workshop on Privacy Enhancing Technologies , Ottawa, Canada, 20/06/07. https://doi.org/10.1007/978-3-540-75551-7_6

TY - GEN

T1 - Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker

AU - Kohlweiss, Markulf

AU - Faust, Sebastian

AU - Fritsch, Lothar

AU - Gedrojc, Bartek

AU - Preneel, Bart

PY - 2007

Y1 - 2007

N2 - Secure processing of location data in location-based services (LBS) can be implemented with cryptographic protocols. We propose a protocol based on oblivious transfer and homomorphic encryption. Its properties are the avoidance of personal information on the services side, and a fair revenue distribution scheme. We discuss this in contrast to other LBS solutions that seek to anonymize information as well as possible towards the services. For this purpose, we introduce a proxy party. The proxy interacts with multiple services and collects money from subscribing users. Later on, the proxy distributes the collected payment to the services based on the number of subscriptions to each service. Neither the proxy nor the services learn the exact relation between users and the services they are subscribed to.

AB - Secure processing of location data in location-based services (LBS) can be implemented with cryptographic protocols. We propose a protocol based on oblivious transfer and homomorphic encryption. Its properties are the avoidance of personal information on the services side, and a fair revenue distribution scheme. We discuss this in contrast to other LBS solutions that seek to anonymize information as well as possible towards the services. For this purpose, we introduce a proxy party. The proxy interacts with multiple services and collects money from subscribing users. Later on, the proxy distributes the collected payment to the services based on the number of subscriptions to each service. Neither the proxy nor the services learn the exact relation between users and the services they are subscribed to.

U2 - 10.1007/978-3-540-75551-7_6

DO - 10.1007/978-3-540-75551-7_6

M3 - Conference contribution

SN - 978-3-540-75550-0

T3 - Lecture Notes in Computer Science

SP - 77

EP - 94

BT - Privacy Enhancing Technologies PET 2007

PB - Springer

T2 - 7th Workshop on Privacy Enhancing Technologies

Y2 - 20 June 2007 through 22 June 2007

ER -

Efficient Oblivious Augmented Maps: Location-Based Services with a Payment Broker

Abstract

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Conference

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