In this era of big data, an unprecedented amount of data is being produced, collected and stored at an alarming rate. Apart from other issues, privacy and cyber-security have become serious as an overwhelming amount of data is collected about users both knowingly and unknowingly. The design of secure remote user authentication and key agreement schemes for big data applications is still open and challenging. Therefore, this paper proposes a robust smart card based mutual authentication and key agreement scheme for big data environment which not only resolves the security weaknesses of schemes proposed till date but also extends the scheme to provide user anonymity which is one of the most desired features of big data systems. Furthermore, the proposed scheme requires lower computation cost and provides more security and functionality features than the existing schemes. The proposed scheme thus provides more efficiency and security from any type of system intrusion.

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Big Data Elliptic Curve Cryptography Remote User Authentication Session Key Smart Card User Anonymity