Enhanced authentication and key exchange protocols for roaming service
Jing Min Xu · Journal of Communications · 2009
The emerging wireless network has called for new requirements for designing authentication protocols due to its dynamic nature and vulnerable-to-attack structure.In 2006, two mutual authentication and key exchange protocols with anonymity were proposed for roaming services in the global mobility network.After careful analyse, it was found that both protocols suffer from a number of practical attacks.Two improved protocols which were immune to the presented attacks were also proposed.These protocols did not only preserve all the advantages of original protocols but also improved the second protocol's efficiency.