Quantum Overview and the Evolution of Encryption

Spring 2023

Quantum computing is an emerging brute-force tool that can provably break virtually all modern encryption protocols, but it has not yet reached the requisite scale. Although “harvest now, decrypt later” is the common threat most often discussed today, it has been a remarkably successful technique for more than a half century. The advent of cloud infrastructure and globally accessible networks enabled the bulk collection and exploitation of flaws in PKI. Although AES may be quantum-safe, it is primarily distributed using quantum-insecure algorithms like RSA and ECDH. Understanding the realistic threats, the limits of existing architectures and the time requirements for the transition will be critical to ensuring national economic security.


I’m the Co-Founder and Co-Host of The Tech Fugitives Show. The show covers IT news with a dash of science. Mix in some humor and it becomes… “Tech Talk that doesn’t Suck!”

Qrypt CTO and co-founder, Denis Mandich, focuses on quantum security, R&D, post quantum encryption (PQC) algorithms and standards bodies. He holds several patents in cryptography, cyber technologies and information processing. Denis a founding member of the Quantum Economic Development Consortium (QED-C), a founding member of the NSF-funded Mid-Atlantic Quantum Alliance (MQA), founding member of the Center for Quantum Technologies (CQT), advisor to the Quantum Startup Foundry and Board member of quantum chip manufacturer Quside.

Prior to joining Qrypt, Denis served 20 years in the US Intel Community working on national security projects, cyber infrastructure, and advanced technology development. He has degrees in Physics from Rutgers University and speaks native level Croatian and Russian.

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