An Oblivious Transfer Protocol Based on Elgamal Encryption for Preserving Location Privacy

Jannati, Hoda

doi:10.1007/s11277-017-4664-7

Cited by 24 publications

(6 citation statements)

References 18 publications

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“…e correlation between geographic data and social data leads to losing effectiveness for spatial-temporal anonymity technology. As a cryptography-based oblivious transfer method, private information retrieval (PIR) was also adopted to secure the location privacy [13,14]. OT and PIR are similar: cryptographic protection against information disclosure.…”

Section: Related Workmentioning

confidence: 99%

Towards Region Queries with Strong Location Privacy in Mobile Network

Yang

Jiang

2021

Mobile Information Systems

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With the interaction of geographic data and social data, the inference attack has been mounting up, calling for new technologies for privacy protection. Although there are many tangible contributions of spatial-temporal cloaking technologies, traditional technologies are not enough to resist privacy intrusion. Malicious attackers still steal user-sensitive information by analyzing the relationship between location and query semantics. Reacting to many interesting issues, oblivious transfer (OT) protocols are introduced to guarantee location privacy. To our knowledge, OT is a cryptographic primitive between two parties and can be used as a building block for any arbitrary multiparty computation protocol. Armed with previous privacy-preserving technologies, for example, OT, in this work, we first develop a novel region queries framework that can provide robust privacy for location-dependent queries. We then design an OT-assist privacy-aware protocol (or OTPA) for location-based service with rigorous security analysis. In short, the common query of the client in our solution can be divided into two parts, the region query R q and the content query C q , to achieve location k -anonymity, location m -diversity, and query r -diversity, which ensure the privacy of two parties (i.e., client and server). Lastly, we instantiate our OTPA protocol, and experiments show that the proposed OTPA protocol is reasonable and effective.

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Section: Related Workmentioning

confidence: 99%

Towards Region Queries with Strong Location Privacy in Mobile Network

Yang

Jiang

2021

Mobile Information Systems

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“…Berdasarkan beberapa penelitian terdahulu yang menggunakan algoritma elgamal untuk menyelesaikan berbagai masalah kerahasiaan data, maka peneliti menggunakan algoritma elgamal untuk merahasiakan isi teks basis data MySQL. Algoritma elgamal merupakan sebuah algoritma yang dapat melakukan enkripsi dan dekripsi berdasarkan kunci asimetris yang artinya kunci public dan kunci private berbeda sehingga untuk melakukan proses enkripsi dan dekripsi juga dilakukan dengan jalan dan rumus yang berbeda [12]. Enkripsi merupakan teknik yang digunakan untuk merahasiakan teks ataupun data-data yang bersifat teks dan dekripsi merupakan teknik yang digunakan untuk membaca informasi [13].…”

Section: Pendahuluanunclassified

Kerahasiaan Teks Basis Data MySQL Menggunakan Algoritma Elgamal

Atmaja

2019

JSisfotek

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The common method used to secure a MySQL database is in access control. The technique is the use of a password. To better secure the data sent cryptographic techniques need to be done. This study uses the Elgamal method in conducting cryptography. The results of this study generate MySQL databases in random form during safer delivery and can only be accessed by parties who have a password. So this research can further improve MySQL data security

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“…Besides, an information-theoretic notion was introduced to protect privacy in LBS systems [18]. An approach is proposed to protect both client's location privacy and the server's database security by improving the oblivious transfer protocol [19]. For providing privacy-preserving map services, a new multiple mix zones location privacy protection is proposed.…”

Section: Traditional Lbs Privacy Protectionmentioning

confidence: 99%

An Efficient and Privacy-Preserving Multiuser Cloud-Based LBS Query Scheme

Yin

Qin

et al. 2018

Security and Communication Networks

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Location-based services (LBSs) are increasingly popular in today's society. People reveal their location information to LBS providers to obtain personalized services such as map directions, restaurant recommendations, and taxi reservations. Usually, LBS providers offer user privacy protection statement to assure users that their private location information would not be given away. However, many LBSs run on third-party cloud infrastructures. It is challenging to guarantee user location privacy against curious cloud operators while still permitting users to query their own location information data. In this paper, we propose an efficient privacy-preserving cloud-based LBS query scheme for the multiuser setting. We encrypt LBS data and LBS queries with a hybrid encryption mechanism, which can efficiently implement privacy-preserving search over encrypted LBS data and is very suitable for the multiuser setting with secure and effective user enrollment and user revocation. This paper contains security analysis and performance experiments to demonstrate the privacy-preserving properties and efficiency of our proposed scheme.

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An Oblivious Transfer Protocol Based on Elgamal Encryption for Preserving Location Privacy

Cited by 24 publications

References 18 publications

Towards Region Queries with Strong Location Privacy in Mobile Network

Towards Region Queries with Strong Location Privacy in Mobile Network

Kerahasiaan Teks Basis Data MySQL Menggunakan Algoritma Elgamal

An Efficient and Privacy-Preserving Multiuser Cloud-Based LBS Query Scheme

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