NDLI: Unidirectional IBPRE scheme from lattice for cloud computation

Content Provider	Springer Nature Link
Author	Zhang, Minqing Wu, Liqiang Wang, Xu An Yang, Xiaoyuan
Copyright Year	2015
Abstract	Identity based proxy re-encryption (IB-PRE) is a powerful cryptographic primitive, which allows a proxy to transform a ciphertext under Alice’s identity to another ciphertext of the same message for Bob. Almost all of the existing IB-PRE schemes are based on the number theoretic assumptions whose security will be seriously threatened by quantum computers. Recently, cryptosystems from lattices have attracted many attentions due to their average-case to worst-case equivalence and their conjectured resistance to quantum attacks. In this paper, we first propose a property of backward collusion safety, which means that the collusion between Alice and the proxy cannot extract secret key of Bob, and then present an IB-PRE scheme based on lattices with the highly desirable properties of anonymity, uni-directionality, multi-use and backward collusion safety, to the best of our knowledge, it is the first IB-PRE scheme from lattices which provides those properties. Besides, the IND-PrID-CPA security proof of our proposal is given in the random oracle model based on the decisional learning with errors hardness assumption.
Starting Page	623
Ending Page	631
Page Count	9
File Format	PDF
ISSN	18685137
Journal	Journal of Ambient Intelligence and Humanized Computing
Volume Number	7
Issue Number	5
e-ISSN	18685145
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-03-15
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	IB-PRE Uni-directionality LWE problem Lattices Cloud computation Computational Intelligence Artificial Intelligence (incl. Robotics) Robotics and Automation User Interfaces and Human Computer Interaction
Content Type	Text
Resource Type	Article
Subject	Computer Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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