Open AccessBlockchain‐Based Dynamic Group Key Agreement Protocol for Ad Hoc Network
Author(s) -
Zhang Qikun,
Wang Bingli,
Zhang Xiaosong,
Yuan Junling,
Wang Ruifang
Publication year - 2020
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2020.02.020
Subject(s) - computer science , group key , key (lock) , computer security , traceability , protocol (science) , computer network , communication in small groups , key exchange , node (physics) , forward secrecy , encryption , distributed computing , public key cryptography , engineering , medicine , alternative medicine , software engineering , structural engineering , pathology
Group key agreement (GKA) is one of the key technologies for ensuring information exchange security among group members. While GKA is widely used in secure multi‐party computation, safety of resources sharing, and distributed collaborative computing. It still has some security flaws and limitations. We proposes a Blockchain‐based dynamic Group key agreement (BDGKA) protocol. In contrast to prior works, BDGKA differs in several significant ways: 1) anonymous identity authenticationit can prevent privacy leaks; 2) traceability‐it can track illegal operating entities; 3) load balancing‐it balances computation and communication to each node, avoiding the breakdown of single‐point and network bottlenecks. This protocol is proven secure under the hardness assumption of decision bilinear DiffieHellman. The performance analysis shows that it is more efficient than the referred works.