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2007•2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007)Requires access

Password-based Dynamic Group Key Agreement

Chunbo Ma, Jun Ao, Jianhua Li

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Abstract

A password-based dynamic group key agreement protocol from tripartite Diffie-Hellman using pairing on elliptic curve is presented in this paper. In this scheme, due to all users share a common pre-distributed password, the setup of the key agreement is simplified and the performance is improved. In addition, each user establishes a relation between his left and right neighbors respectively in order to implement the fast joining and leaving operations. Under the DDH assumption, proofs are given to show that the proposed key agreement protocol is secure against passive attack.

About this research paper

What this paper is about

A password-based dynamic group key agreement protocol from tripartite Diffie-Hellman using pairing on elliptic curve is presented in this paper. In this scheme, due to all users share a common pre-distributed password, the setup of the key agreement is simplified and the performance is improved. In addition, each user establishes a relation between his left and right neighbors respectively in order to implement the fast joining and leaving operations. Under the DDH assumption, proofs are given to show that the proposed key agreement protocol is secure against passive attack.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A password-based dynamic group key agreement protocol from tripartite Diffie-Hellman using pairing on elliptic curve is presented in this paper. In this scheme, due to all users share a common pre-distributed password, the setup of the key agreement is simplified and the performance is improved. In addition, each user establishes a relation between his left and right neighbors respectively in order to implement the fast joining and leaving operations. Under the DDH assumption, proofs are given to show that the proposed key agreement protocol is secure against passive attack.

Key concepts: Password, Group key, Computer science, Key (lock), Protocol (science), Key-agreement protocol, S/KEY, Zero-knowledge password proof

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