Analysis and improvement of ECC-based key agreement and mutual authentication scheme

The shortage of security in the authentication and key agreement protocol for the mobile communication system and the present scheme are analyzed,and an improved key agreement and mutual authentication scheme based on elliptic curve cryptograph techniques is proposed.The mutual authentication and key agreement is realized,between users,or between user and network in the mobile network.By using the ECC techniques,the scheme provides greater security with fewer bits.As a result,the bandwidth requirement is less,and computational burden and storage requirement are also lower on the mobile terminals,which satisfies the requirements of mobile network.