Identity Based Authenticated Group Key Agreement Protocol

A Group Key Agreement protocol is a process to establish a cryptographic key for a group of participants over an open network. In this paper, we propose a group key agreement(CAGKA) protocol, based on a certificateless public key cryptosystem [5]. CAGKA protocol provides group key establishment and group membership change (join and leave) services for dynamic groups. This protocol is proved to be secure against passive and active adversaries and is more efficient than previous group key agreement protocols.

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“…Our protocol is verified to be more efficient than the previous group key agreement protocols [4], [6], [7], [8].…”

Section: B Complexity Analysismentioning

confidence: 89%

“…The modified protocol is more efficient than the earlier protocol. We demonstrate that our group key agreement protocol, which is based on the modified protocol, is more efficient than the previous schemes [4], [6], [7], [8].…”

Section: Introductionmentioning

confidence: 95%

Certificateless Authenticated Group Key Agreement Protocol for Dynamic Groups

Heo

Kim

2007

IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference

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“…The first ID-based authenticated group key agreement protocol was proposed by Reddy et al [9]. It utilized a binary tree structure and achieves authentication with ID-based cryptosystem, hence avoids management of certificates.…”

Section: Related Workmentioning

confidence: 99%

A Pairing Free Certificateless Group Key Agreement Protocol with Constant Round

Kumar

Tripathi

Jaiswal

2014

Advanced Computing, Networking and Informatics- Volume 2

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Abstract. To allow a secure conversation among a group of members over a public network there is a need of group key agreement protocol which provide a group session key used in necessary cryptographic operations. Nowadays the protocols based on the certificateless public key cryptography (CL-PKC) creating more attraction for research because it does not require certificates to authenticates the public key as like ID-based cryptosystem and unlike ID based cryptosystem, it does not suffers from the key escrow problem. The almost all CL-PKC based group key agreement schemes in current literature are employ bilinear pairing in their operations. Since the relative computation cost of pairing is many times more than the elliptic curve point multiplication, so it motivates the researchers to propose pairing free protocols based on the CL-PKC. The present paper propose an efficient pairing free group key agreement protocol based on certificateless cryptography over elliptic curve group with their security and performance analysis. The analysis shows that the proposed protocol has strong security protection against various kinds of attack and involves comparatively lower computation and communication overheads than the other existing protocols.

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“…The first ID-based authenticated group key agreement(ID-AGKA) protocol was proposed by Reddy et al [14], but it still requires O(log 2 n ) rounds for n number of participants. Some constant round protocols based on the ID-based cryptosystem has been proposed like [15]- [17], but these are not exactly suitable for Pay-Tv system and requires bilinear paring computations.…”

Section: Related Workmentioning

confidence: 99%

Design of efficient ID-based group key agreement protocol suited for Pay-TV application

Kumar

Tripathi

Jaiswal

2015

2015 International Conference on Advances in Computing, Communications and Informatics (ICACCI)

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Pay-TV application is one of the challenging home appliances where a TV program is delivered to a group of customers. The broadcaster of the Pay-TV system needs to assure that only legitimate subscribers/customers can watch the subscribed TV program. To deliver a TV program confidentially to its subscribers, the broadcaster may encrypt the program by a group key shared by all subscribers. Thus the Pay-TV system often requires a group key establishment protocol to establish a symmetric key among all the subscribers subscribing for a particular program. The group key agreement protocol for Pay-TV system presented so far are requires bilinear pairing computations which creates a big overhead for subscribers specially in wireless environment. A protocol is suitable for Pay-TV system only when most of the computational load are shifted to the broadcaster than the subscribers because the subscribers may have less computational resources as compared to the broadcaster. The present paper proposes an ID-based group key agreement protocol suitable for the Pay-TV system without using bilinear pairing. The proposed protocol also have efficient join and leave procedures to allow dynamic subscriptions with forward and backward secrecy. Moreover, the security of the proposed protocol is justified with respect to the necessary security attributes. Finally the performance of proposed protocol has been compared with some other existing protocols which shows that the proposed protocol has comparable communication and computation cost with zero pairing computation. 978-1-4799-8792-4/15/$31.00 c 2015 IEEE

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Identity Based Authenticated Group Key Agreement Protocol

Cited by 30 publications

References 8 publications

Certificateless Authenticated Group Key Agreement Protocol for Dynamic Groups

Certificateless Authenticated Group Key Agreement Protocol for Dynamic Groups

A Pairing Free Certificateless Group Key Agreement Protocol with Constant Round

Design of efficient ID-based group key agreement protocol suited for Pay-TV application

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