Schemes for Encryption with Anonymity and Ring Signature

Authors:
Ryotaro Hayashi;Keisuke Tanaka
Affiliations:
The authors are with the Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Tokyo, 152-8552 Japan. E-mail: hayashi9@is.titech.ac.jp, E-mail: keisuke@is.titech.ac.jp;The authors are with the Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Tokyo, 152-8552 Japan. E-mail: hayashi9@is.titech.ac.jp, E-mail: keisuke@is.titech.ac.jp
Venue:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Year:
2006

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Abstract

In this paper, we present previously unproposed schemes for encryption with anonymity and ring signature by applying two techniques. That is, we construct a key-privacy encryption scheme by using N-ary representation, and a ring signature scheme by using the repetition of evaluation of functions. We analyze precisely the properties of these schemes and show their advantage and disadvantage.