Cryptography In The Post-Quantum Era

❖ Abstract

📍 This presentation was made for my participation in the Graduate Seminars of the Mathematics Department of Aristotle University of Thessaloniki.

In this speech, I begin by introducing basic concepts from the fields of Cryptography and Quantum Computing, with the aim of analyzing the so-called “Quantum Threat” to Cryptography. Then, I proceed by presenting the main approach to addressing this threat, which is Post-Quantum Cryptography, and analyzing it by describing some families of cryptographic schemes and systems that belong to it, in particular some of those belonging to the fields of Hash-Based Cryptography, Code-Based Cryptography & Lattice Cryptography. Finally, the speech concludes with a reference to current and future perspectives and actions of organizations actively involved in the topic, in order to provide a global outlook on the subject.

❖ Files Included

• Presentation (greek)

❖ Keywords

Cryptography, quantum computer, Shor’s quantum algorithm, Grover’s quantum algorithm, Quantum Cryptography, Post-Quantum Cryptography, Hash-based Cryptography, Merkle tree, Coding Theory, Code-based Cryptography, McEliece cryptosystem, Lattice Cryptography, NIST competition, hybridation.