Efficient Reconfigurable Integrated Cryptosystems for Cybersecurity Protection

Modern cryptosystems comprise various cryptographic mechanisms designed to defend cyber-attacks which target different application areas. For successful protection of the attacks, selection of suitable crypto algorithms and optimized implementations are required pertaining to the applications and attack types. To effectively utilize the advantages of the existing cryptographic mechanisms, various methods have been proposed for enhanced performance and better security. Cryptosystem implementations for high performance and constrained environments must be different as these platforms differ in terms of resource, performance, and security requirements. If the application incorporates both platforms for sensitive information exchange like healthcare IoT, a cryptosystem fulfilling the specific requirements of each platform and providing end-to-end security is needed. It is challenging to implement a cryptosystem which simultaneously meets the requirements of both environments using the same cryptosystem. In this chapter, efficient FPGA-based integrated cryptosystems are proposed for the security of high-performance platforms, constrained devices, and secure information exchange between them focusing on the security of healthcare IoT to address the challenges. Fewer number of algorithms are used achieving better throughput and smaller area in accordance with the specific implementations while saving extra space, key management, and key storage requirements compared to existing reported outcomes.