Page 108 - Cyber Defense eMagazine September 2023

Security and Future of Post-Quantum Cryptography

There are a few noticeable questions that arise in our mind, particularly when we think of post-quantum
future perspectives. What impact would post-quantum have on departments such as government,
finance, and healthcare? How does it impact future security protocols, data protection, and privacy? How
will it implement in real-world systems? What happens if a large number of post-quantum computers will
use?

Post-quantum cryptography has a significant impact on these departmental elements like the
government, as it does depend upon secure communication during the exchange of sensitive data over
the channel. Implementing post-quantum cryptography will protect the potential attacks on critical
infrastructure. Now a day’s, in finance, crypto-currencies such as bitcoins are widely in use, and post-
quantum assures the security of these digital currencies. Post-quantum will protect and secure patients’
sensitive data, medical devices, and new research in medical fields.

How Post-Quantum Cryptography Works and Why It Matters

Quantum computing has been proven effective to breaks the classical cryptographic components
because it can solve factoring problems and break complex algorithms. To defend us against such
attacks, post-quantum cryptography came into existence. It utilizes complex mathematical frameworks
to resist these quantum attacks and ensure the security of underlined algorithms. It ensures that sensitive
information remains protected. Moreover, it strengthens the public and private keys, symmetric
encryption, and all models that can be used to mitigate the risk of attacks. post-quantum cryptography
has paramount importance, and its significance can not be denied.

In the current interconnected digital world, there is an uncontrolled reliance on technology and the need
for online communication and data is key to security and privacy. Researchers are dedicating their efforts
to building highly complex mathematical algorithms and key-sharing schemes that can sustain quantum
attacks effectively. Build algorithms are tested against various attacks and scenarios to ensure the
reliance on both classical and quantum cryptography, ultimately paving the way forward toward
development and secure cryptographic solution.

Challenges and Limitations of Post-Quantum Cryptography

Despite the benefits and importance of post-quantum cryptography, there are also some drawbacks and
difficulties that require further research and development. Some of the challenges include the
complexities of keys, the overhead of key processing, and the underlined legacy infrastructure. These
factors can affect the efficiency and performance of post-quantum cryptography, as well as its adoption
and implementation in real-world systems.

One of the important aspects of post-quantum cryptography is the deployment in underlined legacy
systems and making it compatible with existing protocols. These newly developed post-quantum
cryptographic schemes and protocols need compatibility solutions with real-world systems and existing

Cyber Defense eMagazine – September 2023 Edition 108
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