Title :
Improvement of identity-based authenticated key agreement protocol
Author :
Xu Chi ; Zhang Wen Fang ; Hu Zhen Hua
Author_Institution :
Network Center, Hunan City Univ., Yiyang, China
Abstract :
The security of a recently proposed ID-based authenticated key agreement protocol was analyzed,and an enhanced ID-based authenticated key agreement protocol is presented based on the previous work. a malicious PKG (private key generator) can still obtain all of the agreed session keys, that is, it doesn´t provide PKG-forward secrecy in escrowless mode. Aiming at the security flaws of an existing ID-based key agreement Protocol and a key agreement Protocol for multi-trustdomain proposed based on the new variant mode of ID- Base public key infrastrueture(PKI), an improved scheme is proposed. The new scheme can avoid excessive power of KGC to make up the security flaws in the original protocols, which has a higher level of security. The new schemes have many properties such as equal contribution; non-key control; against man-in-middle attack; etc.
Keywords :
cryptographic protocols; public key cryptography; ID- Base public key infrastrueture; PKG-forward secrecy; escrowless mode; identity based authenticated key agreement protocol; multitrustdomain proposed; private key generator; Cryptography; Protocols; Radio access networks; PKG-forward secrecy; authenticated key agreement protocol; bilinear pairing; security attributes;
Conference_Titel :
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4244-7235-2
Electronic_ISBN :
978-1-4244-7237-6
DOI :
10.1109/ICCASM.2010.5620218