(k-n) Oblivious transfer using fully homomorphic encryption system

Mohammed Kaosar; Quazi Mamun; MD Rafiqul Islam; Yi. Xun

doi:10.1007/978-3-319-04283-1_24

(k-n) Oblivious transfer using fully homomorphic encryption system

Mohammed Kaosar, Quazi Mamun, MD Rafiqul Islam, Yi. Xun

Victoria University

Research output: Book chapter/Published conference paper › Conference paper › peer-review

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Abstract

Oblivious Transfer (OT) protocol allows a client retrieving one or multiple records from a server without letting the server know about the choice of the client. OT has been one of the emerging research areas for last several years. There exist many practical applications of OT, especially in digital media subscription. In this paper, we propose a fully homomorphic encryption based secure k out of n oblivious transfer protocol. This novel protocol, first ever to use fully homomorphic encryption mechanism for integers numbers, allows the client choosing its desired records by sending encrypted indexes to the server, server works on encrypted indexes and sends back encrypted result without knowing which records the client was interested in. From the encrypted response of the server, the client only can decrypt its desired records. The security analysis demonstrates that, the desired security and privacy requirement of OT is ensured by the proposed protocol. Some optimizations are also introduced in the proposed solution to reduce transmission overhead.

Original language	English
Title of host publication	Security and Privacy in Communication Networks
Subtitle of host publication	9th International ICST Conference, SecureComm 2013, Revised Selected Papers
Place of Publication	Australia
Publisher	Springer
Pages	380-392
Number of pages	13
DOIs	https://doi.org/10.1007/978-3-319-04283-1_24
Publication status	Published - 2013
Event	Security and Privacy in Communication Networks. 9th International ICST Conference, SecureComm - Sydney, Australia, Australia Duration: 25 Sept 2013 → 28 Sept 2013

Workshop

Workshop	Security and Privacy in Communication Networks. 9th International ICST Conference, SecureComm
Country/Territory	Australia
Period	25/09/13 → 28/09/13

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10.1007/978-3-319-04283-1_24

ot.pdfAccepted author manuscript, 1.34 MB

Cite this

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title = "(k-n) Oblivious transfer using fully homomorphic encryption system",

abstract = "Oblivious Transfer (OT) protocol allows a client retrieving one or multiple records from a server without letting the server know about the choice of the client. OT has been one of the emerging research areas for last several years. There exist many practical applications of OT, especially in digital media subscription. In this paper, we propose a fully homomorphic encryption based secure k out of n oblivious transfer protocol. This novel protocol, first ever to use fully homomorphic encryption mechanism for integers numbers, allows the client choosing its desired records by sending encrypted indexes to the server, server works on encrypted indexes and sends back encrypted result without knowing which records the client was interested in. From the encrypted response of the server, the client only can decrypt its desired records. The security analysis demonstrates that, the desired security and privacy requirement of OT is ensured by the proposed protocol. Some optimizations are also introduced in the proposed solution to reduce transmission overhead.",

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Kaosar, M, Mamun, Q , Islam, MDR & Xun, Y 2013, (k-n) Oblivious transfer using fully homomorphic encryption system. in Security and Privacy in Communication Networks: 9th International ICST Conference, SecureComm 2013, Revised Selected Papers. Springer, Australia, pp. 380-392, Security and Privacy in Communication Networks. 9th International ICST Conference, SecureComm, Australia, 25/09/13. https://doi.org/10.1007/978-3-319-04283-1_24

(k-n) Oblivious transfer using fully homomorphic encryption system. / Kaosar, Mohammed; Mamun, Quazi ; Islam, MD Rafiqul et al.
Security and Privacy in Communication Networks: 9th International ICST Conference, SecureComm 2013, Revised Selected Papers. Australia: Springer, 2013. p. 380-392.

Research output: Book chapter/Published conference paper › Conference paper › peer-review

TY - GEN

T1 - (k-n) Oblivious transfer using fully homomorphic encryption system

AU - Kaosar, Mohammed

AU - Mamun, Quazi

AU - Islam, MD Rafiqul

AU - Xun, Yi.

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N2 - Oblivious Transfer (OT) protocol allows a client retrieving one or multiple records from a server without letting the server know about the choice of the client. OT has been one of the emerging research areas for last several years. There exist many practical applications of OT, especially in digital media subscription. In this paper, we propose a fully homomorphic encryption based secure k out of n oblivious transfer protocol. This novel protocol, first ever to use fully homomorphic encryption mechanism for integers numbers, allows the client choosing its desired records by sending encrypted indexes to the server, server works on encrypted indexes and sends back encrypted result without knowing which records the client was interested in. From the encrypted response of the server, the client only can decrypt its desired records. The security analysis demonstrates that, the desired security and privacy requirement of OT is ensured by the proposed protocol. Some optimizations are also introduced in the proposed solution to reduce transmission overhead.

AB - Oblivious Transfer (OT) protocol allows a client retrieving one or multiple records from a server without letting the server know about the choice of the client. OT has been one of the emerging research areas for last several years. There exist many practical applications of OT, especially in digital media subscription. In this paper, we propose a fully homomorphic encryption based secure k out of n oblivious transfer protocol. This novel protocol, first ever to use fully homomorphic encryption mechanism for integers numbers, allows the client choosing its desired records by sending encrypted indexes to the server, server works on encrypted indexes and sends back encrypted result without knowing which records the client was interested in. From the encrypted response of the server, the client only can decrypt its desired records. The security analysis demonstrates that, the desired security and privacy requirement of OT is ensured by the proposed protocol. Some optimizations are also introduced in the proposed solution to reduce transmission overhead.

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ER -

(k-n) Oblivious transfer using fully homomorphic encryption system

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