Design and security analysis of post quantum secure multivariate based cryptographic primitives as an aid to iot and blockchain Technology

Abstract

In the ever-changing digital era, where data is freely exchanged over extensive networks, cryptography has become a crucial instrument for guaranteeing security and privacy. With the advent of computer-based encryption and signature techniques, the digital era brought a new chapter in the history of cryptography. It serves as the foundation for safe online transactions, guaranteeing the confidentiality and security of our financial information. It safeguards our correspondence, maintaining newlinethe privacy of our emails and texts while defending us against online attacks. Digital signatures and encryption, two essential cryptography components, are already ingrained in our daily routines. In essence, cryptography secures data, protects privacy, and ensures secure transactions in digital communication, safeguarding personal and sensitive information. Much of the assumed safety and security of classical cryptographic building blocks are depending upon the fact that certain newlinenumber-theoretical problem are difficult to solve on a classical computer. However, the advent of quantum computing based attacks like Shor s algorithm poses a grave threat to the security of these traditional cryptosystems. To address the aforementioned issues, Post Quantum Cryptography (PQC) presents a novel direction of research. It is anticipated to bring a new class of quantum-safe algorithms. newlineMultivariate public key cryptography (MPKC) is one such PQC candidate. This newlinethesis focuses on the development and analysis of MPKC-based schemes. newline