Simple Generalized Group-Oriented Cryptosystems Using ElGamal Cryptosystem

Chou Chen Yang; Ting Yi Chang; Jian Wei Li; Min Shiang Hwang

Simple Generalized Group-Oriented Cryptosystems Using ElGamal Cryptosystem

Chou Chen Yang, Ting Yi Chang, Jian Wei Li, Min Shiang Hwang

Department of Industrial Education and Technology

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

In the generalized group-oriented cryptosystem, the sender can send a conditional message to a group of users such that only the specified sets of users in this group can cooperate to decrypt this message. In this paper, we will use an ElGamal cryptosystem and an elliptic curve ElGamal cryptosystem to achieve the purposes of generalization and group-orientation, respectively. Both of our schemes are more efficient than Tsai et al.'s scheme in terms of sender's computational complexity.

Original language	English
Pages (from-to)	111-120
Number of pages	10
Journal	Informatica
Volume	14
Issue number	1
Publication status	Published - 2003 Jan 1

All Science Journal Classification (ASJC) codes

Information Systems
Applied Mathematics

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abstract = "In the generalized group-oriented cryptosystem, the sender can send a conditional message to a group of users such that only the specified sets of users in this group can cooperate to decrypt this message. In this paper, we will use an ElGamal cryptosystem and an elliptic curve ElGamal cryptosystem to achieve the purposes of generalization and group-orientation, respectively. Both of our schemes are more efficient than Tsai et al.'s scheme in terms of sender's computational complexity.",

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