Quantum Computing Challenges and Impact on Cyber Security

Quantum computers pose a significant danger to cyber security. If major fault-tolerant, quantum computers are built, the most extensively used cryptography techniques would fail. The present level of analysis, in terms of quantum technologies and applications, is still in its infancy. The researchers have a hazy view of how to prepare for future quantum computing breakthroughs, particularly in cyber security. The powerful quantum computers capable of breaching current cryptography protections are yet a decade or more away. History has demonstrated that transitioning to quantum-resistant techniques for classical cryptography will most likely take a quantifiable amount of time. In this paper, a comparative analysis of modern cryptographic algorithms concerning quantum computing is performed and its impact on cyber security has been reviewed.