For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Key-Private Proxy Re-Encryption from Lattices, Revisited
Ryo NISHIMAKI Keita XAGAWA
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/01/01
Online ISSN: 1745-1337
Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Based Cryptography
proxy re-encryption, key privacy, anonymity, lattices,
Full Text: PDF(616.6KB)>>
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.