Welcome to the resource topic for 2003/054
Title:
ID based Cryptosystems with Pairing on Elliptic Curve
Authors: Ryuichi SAKAI, Masao KASAHARA
Abstract:The pairings on elliptic curves have been applied for realizing the
secure ID based cryptosystems that can be invulnerable to the collusion
attacks. The computation of the pairing are necessary for the
cryptosystems, though the computation of the pairing requires high cost
compared with the computation cost for the power operation over the
finite fields or on the elliptic curve when the parameters are securely
to be provided.
In this paper we propose an efficient method for a class of ID based
cryptosystems which have been proposed by the present authors. The
proposed method is able to reduce the number of the computations for
the pairing for verifying the ID based signature and also for decoding
of the ID based public key cryptosystems with the authentication, by a
factor of 2.
Moreover we propose the ID based public key cryptosystems with signature
and the ID based public key cryptosystems having the multiple centers.
ePrint: https://eprint.iacr.org/2003/054
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