NDLI: A Computationally Secure Quantum Oblivious Transfer Scheme

Content Provider	IEEE Xplore Digital Library
Author	Xin Lu Zhi Ma Deng-Guo Feng
Copyright Year	2006
Description	Author affiliation: State Key Lab. of Inf. Security, Chinese Acad. of Sci., Beijing (Xin Lu)
Abstract	Oblivious transfer is an important primitive in modern cryptography and is widely utilized in designing more complex protocols. In a one-out-of-two oblivious transfer, a party Alice has two messages x $_{0},$ $x_{1}$ send to another party Bob in such a way that he can decide to obtain one of them at his choice but not both. In the literature (A. Kawachi et al., EUROCRYPT 2005, 268-284), the quantum states $p_{pi}$ $^{+}$ and $p_{pi}$ $^{-}$ are used as public keys to construct an encryption algorithm. In the paper, we further demonstrate that, for pi ne thetas, the quantum states $p_{pi}$ $^{plusmn}$ and $p_{thetas}$ $^{plusmn}$ can't been distinguished by quantum computers. Using this result, we devise a one-out-of-two oblivious transfer scheme, in which any cheating of the entities are detected at the end of the protocol. Correctness and privacy of this protocol are analyzed and results show that the proposed scheme is computationally secured
Starting Page	1547
Ending Page	1551
File Size	304176
Page Count	5
File Format	PDF
ISBN	8955191294
DOI	10.1109/ICACT.2006.206280
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-02-20
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	ETRI
Subject Keyword	Quantum computing Cryptographic protocols Public key cryptography Information security Registers Privacy Quantum mechanics Helium Performance evaluation Laboratories oblivious transfer quantum cryptography
Content Type	Text
Resource Type	Article

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