期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：50
期号：2
出版社：Journal of Theoretical and Applied
摘要：Restricted adaptive oblivious transfer was introduced by Herranz in 2011, which is the main approach to protect user privacy in e-transactions involving operations on digital confidential data or sensitive infor-mation. There are many practical applications for restricted adaptive oblivious transfer, such as medical or financial data access, pay-per-view TV, and so on. However, so far as we know, there are only two proto-cols for restricted adaptive oblivious transfers which were both proposed by Herranz [8]. Furthermore, the-se two protocols are very expensive. In this paper, we propose a new protocol for restricted adaptive oblivi-ous transfer by using fully homomorphic encryption. Compared with Herranz�s constructions, our protocol is more efficient in the cost of communication and computation.
