ACM Transactions on Computer Systems (TOCS)
Message authentication with one-way hash functions
ACM SIGCOMM Computer Communication Review
On the security of wireless network access with enhancements
WiSe '03 Proceedings of the 2nd ACM workshop on Wireless security
Authentication and Key Agreement Protocol for UMTS with Low Bandwidth Consumption
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
Security analysis and enhancements of 3GPP authentication and key agreement protocol
IEEE Transactions on Wireless Communications
An authentication protocol for low-cost RFID tags
International Journal of Mobile Communications
Scalable and efficient mobile authentication scheme preserving user privacy
International Journal of Ad Hoc and Ubiquitous Computing
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Mobile communication is definitely one of the major high-technology applications that offer present-day people a modern life of appropriate convenience. In recent years, the third-generation cell phone system has approached maturity. The Universal Mobile Telecommunication System (UMTS) is currently the most widely used system around the world. The Third Generation Partnership Project is equipped with the Authentication and Key Agreement (AKA) protocol to maintain secrecy and security both during the authentication process and during the telecommunication session through UMTS. However, Hung and Li have pointed out that the UMTS-AKA protocol has three problems, involving bandwidth consumption, space overhead and synchronization of the sequence number, which are yet to be resolved. In addition, they have proposed an extension of the UMTS-AKA protocol, named the X-AKA protocol, to overcome these obstacles. Nevertheless, the X-AKA protocol too appears to have problems of its own. In this article, the weaknesses of X-AKA are enumerated. In addition, a more practical AKA protocol for UMTS is presented. The new protocol, based on the same framework as its predecessor, proves to be more efficient and practical, satisfying the requirements of modern living.