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1-out-of-n Signatures from a Variety of Keys

Masayuki ABE, Miyako OHKUBO, Koutarou SUZUKI

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Summary :

This paper addresses how to use public-keys of several different signature schemes to generate 1-out-of-n signatures. Previously known constructions are for either RSA-type keys only or DL-type keys only. We present a widely applicable method to construct a 1-out-of-n signature scheme that allows mixture use of different flavors of keys at the same time. The resulting scheme is more efficient than previous schemes even if it is used only with a single type of keys. With all DL-type keys, it yields shorter signatures than the ones of the previously known scheme based on the witness indistinguishable proofs by Cramer, et al. With all RSA-type keys, it reduces both computational and storage costs compared to that of the Ring signatures by Rivest, et al.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.1 pp.131-140
Publication Date
2004/01/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Cryptography and Information Security)
Category
Asymmetric Cipher

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