IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Cryptography and Information Security
Key-Private Proxy Re-Encryption from Lattices, Revisited
Ryo NISHIMAKI, Keita XAGAWA
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Keywords: proxy re-encryption, key privacy, anonymity, lattices
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2015 Volume E98.A Issue 1 Pages 100-116

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Abstract
We propose two unidirectional proxy re-encryption schemes from the LWE assumptions. The schemes enjoy key privacy defined by Ateniese, Benson, and Hohenberger (CT-RSA 2009), that is, a delegator and a delegatee of a re-encryption key are anonymous.
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© 2015 The Institute of Electronics, Information and Communication Engineers
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