An improved protocol for server-aided authenticated group key establishment

Authors:
Junghyun Nam;Juryon Paik;Byunghee Lee;Kwangwoo Lee;Dongho Won
Affiliations:
Department of Computer Engineering, Konkuk University, Korea;Department of Computer Engineering, Sungkyunkwan University, Korea;Department of Computer Engineering, Sungkyunkwan University, Korea;Department of Computer Engineering, Sungkyunkwan University, Korea;Department of Computer Engineering, Sungkyunkwan University, Korea
Venue:
ICCSA'11 Proceedings of the 2011 international conference on Computational science and Its applications - Volume Part V
Year:
2011

Citing 18
Cited 0

Secure protocol transformation via “expansion”: from two-party to groups

CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
Simple and fault-tolerant key agreement for dynamic collaborative groups

Proceedings of the 7th ACM conference on Computer and communications security
How to share a secret

Communications of the ACM
Provably authenticated group Diffie-Hellman key exchange

CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Communication-efficient group key agreement

Sec '01 Proceedings of the 16th international conference on Information security: Trusted information: the new decade challenge
On Key Agreement and Conference Key Agreement

ACISP '97 Proceedings of the Second Australasian Conference on Information Security and Privacy
Group Diffie-Hellman Key Exchange Secure against Dictionary Attacks

ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Round-Optimal Contributory Conference Key Agreement

PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
A Security Analysis of the Cliques Protocols Suites

CSFW '01 Proceedings of the 14th IEEE workshop on Computer Security Foundations
Modeling insider attacks on group key-exchange protocols

Proceedings of the 12th ACM conference on Computer and communications security
Cryptanalysis of tripartite and multi-party authenticated key agreement protocols

Information Sciences: an International Journal
Constant-Round Authenticated Group Key Exchange with Logarithmic Computation Complexity

ACNS '07 Proceedings of the 5th international conference on Applied Cryptography and Network Security
ID-Based Group Password-Authenticated Key Exchange

IWSEC '09 Proceedings of the 4th International Workshop on Security: Advances in Information and Computer Security
(Password) authenticated key establishment: from 2-party to group

TCC'07 Proceedings of the 4th conference on Theory of cryptography
Authenticated Group Key Transfer Protocol Based on Secret Sharing

IEEE Transactions on Computers
A security weakness in Abdalla et al.'s generic construction of a group key exchange protocol

Information Sciences: an International Journal
Errors in computational complexity proofs for protocols

ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
Password-Based group key exchange in a constant number of rounds

PKC'06 Proceedings of the 9th international conference on Theory and Practice of Public-Key Cryptography

Quantified Score

Hi-index	0.00

Visualization

Abstract

Protocols for group key establishment enable a group of parties to build a secure multicast channel over insecure public networks. In this paper, we present a group key transfer protocol designed for use in the model where a trusted key generation center shares a long-term secret with each of its registered users. Our protocol is an improved version of the group key transfer protocol proposed recently by Harn and Lin. Improvement is made in three different aspects: security, efficiency and correctness. Our main contribution is in showing that Harn and Lin's protocol does not achieve implicit key authentication but can be fixed without causing any efficiency degradation.