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IEICE TRANSACTIONS on Fundamentals

A New Product-Sum Public-Key Cryptosystem Using Message Extension

Kiyoko KATAYANAGI, Yasuyuki MURAKAMI, Masao KASAHARA

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Summary :

Recently, Kasahara and Murakami proposed new product-sum public-key cryptosystems using the Chinese remainder theorem as the trapdoor. We proposed 'Yaezakura' as the high-density product-sum PKC applying the method using the reduced bases. In this paper, we propose another high-density scheme with the Chinese remainder theorem trapdoor using the message extension. We also show that the proposed scheme is invulnerable to the low-density attack. In the proposed scheme, the sender can freely select the positions of the dummy messages.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E84-A No.10 pp.2482-2487
Publication Date
2001/10/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Information Theory and Its Applications)
Category
Information Security

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