Efficient Security Method Research Articles

Novel certificateless Chebyshev chaotic map-based key agreement protocol for advanced metering infrastructure

The integration of information technologies into the current power grid has raised significant security concerns for the advanced metering infrastructure (AMI). Evidently, without employing proper security measures, illegal or malicious entities could launch miscellaneous attacks. Thus, scholars have presented several key agreement schemes, which can be used by different parties in the AMI guaranteeing their subsequent secure communications. However, after careful deliberation, we found that their efficiency could be still improved while keeping the desired security properties. Thus, in this paper, utilizing the Chebyshev chaotic maps, as one of the most efficient security methods, we first propose a novel certificateless anonymous authentication and key agreement scheme that both enhances the security and reduces the overhead on the computationally constrained measurement devices. To be more specific, we propose a novel signature scheme in the Chebyshev cryptosystem in order to make our protocol certificateless eliminating the key escrow issue and certificate management overhead. By the way, the proposed scheme is the first Chebyshev chaotic map-based key agreement protocol that is certificateless. Then, we validate the security of the proposed scheme using the random oracle model and ProVerif tool as two well-known and popular formal techniques. Our comprehensive functionality, communication cost, and execution time comparisons indicate the superiority of our scheme compared to the all related schemes in terms of both security and efficiency. For a key agreement, the execution time of the proposed scheme is just 539 microseconds, and its communication overhead is only 1088 bits, much better than the existing related ones.

Efficient Data Security for Mobile Instant Messenger

Instant Messenger (IM) becomes one of the most popular applications in mobile technology and communication. A lot of users around the world installed it for daily activities. Current IM found security lacks both in authentication and encryption matters. Various IM growing today still not apply an efficient method in authentication and encryption process, conventional security methods and client-server architecture system have to risk too many users for attacking server such as compromising, cracking password or PINs by Unauthorized people. Common IM services lack native encryption to protect information being transmitted over the public network and still used high computation in the mobile environment, this problem needs efficient security methods. Then, in public IM also found various messages with fake users, it occurs because public IM carry out the separate system in authentication and encryption process, strong authentication need to solve this issue in messenger environment. The tremendous growth of mobile IM user needs efficient and secure communication way. This paper proposes a new efficient method for securing message both in encryption and authentication within the end-to-end model. In this research, security method proposes new algorithms based on Elliptic Curve (EC) works in Peer to Peer (P2P) architecture than a conventional client-server model. The result shows this method produces efficient time in authentication and encryption process while applying in a mobile environment. Besides, it is compatible with the mobile phone which has a limitation of computation capabilities and resources.