Mobile devices (e.g., PDAs, mobile phones and note book PCs) are a necessary convenience in modern life. They can be used to access many applications, such as online shopping, mobile pay TV and internet banking, which are easily accessible on the internet or wireless networks. Therefore, secure communication in such wireless environments is increasingly important because it protects transactions between users and servers from illegal adversaries. Users are people vulnerable to attack and there have been many authentication schemes proposed to guarantee their security. Recently, Islam and Biswas have proposed a more efficient and secure ID-based scheme to enhance security and authentication for mobile devices on ECC. They claim that their scheme is more secure and able to resist various attacks than previous ones. However, thisisn’t true, because their scheme is vulnerable to known session-specific temporary information attack and denial of service resulting from leaking server’s database attacks. In this paper, we present an improvement to their scheme in order to overcome such problems
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Abstract I. INTRODUCTION II. RELATED WORKS III. REVIEW& CRYPTANALYSIS OF ISLAM & BISWAS’ SCHEME IV. PROPOSED SCHEME V. SECURITY AND EFFICIENCY ANALYSIS VI. CONCLUSIONS References