Emerging Cryptographic Innovations: The Quest for Post-Quantum Security

By: Aiyaan Hasan, International Center for AI and Cyber Security Research and Innovations (CCRI), Asia University, Taiwan, rayhasan114@gmail.com


In the rapidly advancing field of cybersecurity, the approaching threat of quantum computing has initiated an active response. The vulnerability of traditional cryptography methods to quantum computers underscores the need for post-quantum security. This paper examines how cybersecurity is affected by quantum computing and highlights the need for post-quantum cryptography solutions. It also looks at recent advances in this area that hold out hope for protecting digital communication in the event that quantum computers ever develop.


Due to the constant creativity of attackers and defenders alike, the field of cybersecurity is always changing. One of the biggest obstacles in this constantly changing environment is the impending arrival of quantum computing, a technical advancement that might compromise the safety of our digital society.[1] Traditional cryptography systems are under threat from the power of quantum computers, especially their capacity to solve intricate mathematical problems at speeds beyond the comprehension of classical computers.

The main source of the possible quantum threat is the fact that popular encryption methods like RSA (Rivest-Shamir-Adleman) and ECC (Elliptic Curve Cryptography) depend on the complexity of mathematical problems that can be solved quickly by quantum computers.[2] These devices are most notable for their ability to factor big numbers and solve discrete logarithm issues, which form the basis of numerous encryption techniques. This potential could lead to a new kind of data breaches and monitoring by compromising the security of sensitive data transfers, financial transactions, and digital conversations.[3]

Post-Quantum Cryptography’s Necessity:

In view of the impending quantum danger, there is increasing agreement in the cybersecurity world that post-quantum cryptography is necessary—it’s not a question of “if,” but “when.” Cryptographic systems built to withstand quantum attacks are referred to as post-quantum cryptography.[4] Long-term security is a goal of these systems’ development, even in the event that quantum computing becomes a reality. Essentially, we are getting ready for a time when conventional encryption techniques might not be adequate.

Emerging Innovations in Post-Quantum Cryptography:

Researchers and cryptographers are working hard to create a new generation of cryptographic algorithms that can withstand quantum attacks in response to the threat posed by quantum computing. Key developments in post-quantum cryptography include the following:

  1. Lattice-based Cryptography: Lattice-based cryptography is dependent on specific problems in high-dimensional lattices being difficult. It is thought that these issues are immune to quantum attacks. Systems based on lattices are seen to be excellent choices for post-quantum security.[5]
  2. Code-based Cryptography: This method builds cryptographic methods that are resistant to quantum attacks by using error-correcting codes. Its foundation is the seemingly difficult task of decoding random linear codes for quantum computers.[6-8]
  3. Multivariate Polynomial Cryptography: This domain includes a range of potentially quantum-resistant techniques.
Figure 1: Represents the recent and emerging Innovations in Quantum Cryptography

Challenges and Outlook:

Even though post-quantum cryptography methods are emerging at a rapid pace, there are still a number of obstacles to overcome. It is imperative that these new algorithms be adopted and standardized, and that post-quantum alternatives to existing cryptography systems be switched to without sacrificing security.


In the discipline of cybersecurity, the race for post-quantum security is crucial. Researchers are dedicated to making sure that our digital communication stays private and safe regardless of the potential threat posed by quantum technology. New developments in cryptography are at the leading edge of this search, and as quantum computing technology develops, so too will the cryptographic safeguards intended to keep our digital environment safe. It is not a matter of if, but rather of when, to make the switch to post-quantum encryption in order to be ready for a more secure digital future.


  1. Bernstein, D. J., & Lange, T. (2017). Post-quantum cryptography. Nature, 549(7671), 188-194.
  2. Joseph, D., Misoczki, R., Manzano, M., Tricot, J., Pinuaga, F. D., Lacombe, O., … & Hansen, R. (2022). Transitioning organizations to post-quantum cryptography. Nature, 605(7909), 237-243.
  3. Campbell Sr, R. (2019). Evaluation of post-quantum distributed ledger cryptography. The Journal of The British Blockchain Association, 2(1).
  4. Joseph, D., Misoczki, R., Manzano, M., Tricot, J., Pinuaga, F. D., Lacombe, O., … & Hansen, R. (2022). Transitioning organizations to post-quantum cryptography. Nature, 605(7909), 237-243.
  5. Nejatollahi, H., Dutt, N., Ray, S., Regazzoni, F., Banerjee, I., & Cammarota, R. (2019). Post-quantum lattice-based cryptography implementations: A survey. ACM Computing Surveys (CSUR), 51(6), 1-41.
  6. Overbeck, R., & Sendrier, N. (2009). Code-based cryptography. In Post-quantum cryptography (pp. 95-145). Berlin, Heidelberg: Springer Berlin Heidelberg.
  7. Jain, A. K., & Gupta, B. B. (2022). A survey of phishing attack techniques, defence mechanisms and open research challenges. Enterprise Information Systems, 16(4), 527-565.
  8. Gupta, S., & Gupta, B. B. (2015, May). PHP-sensor: a prototype method to discover workflow violation and XSS vulnerabilities in PHP web applications. In Proceedings of the 12th ACM international conference on computing frontiers (pp. 1-8).

Cite As:

Hasan A. (2023) Emerging Cryptographic Innovations: The Quest for Post-Quantum Security, Insights2Techinfo, pp.1

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