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Key-Private Proxy Re-Encryption from Lattices, Revisited Ryo NISHIMAKI Keita XAGAWA Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E98-A No.1 pp.100-116 Publication Date: 2015/01/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E98.A.100 Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security) Category: Public Key Based Cryptography Keyword: proxy re-encryption, key privacy, anonymity, lattices, Full Text: PDF(616.6KB)>>
Summary: 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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