TY - GEN
T1 - Password-based group key exchange secure against insider guessing attacks
AU - Byun, Jin Wook
AU - Lee, Dong Hoon
AU - Lim, Jongin
PY - 2005
Y1 - 2005
N2 - Very recently, Byun and Leo suggested two provably secure group Diffie-Hellman key exchange protocols using n participant's distinct passwords. Unfortunately, the schemes were found to be flawed by Tang and Chen. They presented two password guessing attacks such as off-line and undetectable on-line dictionary attacks by malicious insider attacker. In this paper, we present concrete counterrneasures for two malicious insider attacks, and modify the two group Diffie-Hellman key exchange protocols to bo secure against malicious insider password guessing attacks. Our counterrneasures do not require additional round costs, hence they are efficient.
AB - Very recently, Byun and Leo suggested two provably secure group Diffie-Hellman key exchange protocols using n participant's distinct passwords. Unfortunately, the schemes were found to be flawed by Tang and Chen. They presented two password guessing attacks such as off-line and undetectable on-line dictionary attacks by malicious insider attacker. In this paper, we present concrete counterrneasures for two malicious insider attacks, and modify the two group Diffie-Hellman key exchange protocols to bo secure against malicious insider password guessing attacks. Our counterrneasures do not require additional round costs, hence they are efficient.
UR - http://www.scopus.com/inward/record.url?scp=33646835237&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646835237&partnerID=8YFLogxK
U2 - 10.1007/11596981_21
DO - 10.1007/11596981_21
M3 - Conference contribution
AN - SCOPUS:33646835237
SN - 3540308199
SN - 9783540308195
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 143
EP - 148
BT - Computational Intelligence and Security - International Conference, CIS 2005, Proceedings
T2 - International Conference on Computational Intelligence and Security, CIS 2005
Y2 - 15 December 2005 through 19 December 2005
ER -