The first week of August 2022 saw the world’s cryptographers grapple with the second shocker of the year. Another one of the four post-quantum cryptography (PQC) algorithms selected by the NIST (National Institute of Standards and Technology) in a rigorous 5-year process was cracked by a team from Belgium. They took just 62 min and a standard laptop to break the PQC algorithm to win a USD 50,000 bounty from Microsoft. The first shocker came 6 months earlier, when another of the NIST finalists (Rainbow) was taken down. Unfortunately, both failed PQC algorithms are commercially available to consumers. With 80 of the 82 PQC candidates failing the NIST standardization process, the future of the remaining two PQC algorithms is, at best, questionable, placing the rigorous 5-year NIST exercise to build a quantum-safe encryption standard in jeopardy. Meanwhile, there is no respite from the quantum threat that looms large. It is time we take a step back and review the etiology of the problem de novo. Although state-of-the-art computer security heavily relies on cryptography, it can indeed transcend beyond encryption. This paper analyzes an encryption-agnostic approach that can potentially render computers quantum-resistant. Zero-vulnerability computing (ZVC) secures computers by banning all third-party permissions, a root cause of most vulnerabilities. ZVC eliminates the complexities of the multi-layered architecture of legacy computers and builds a minimalist, compact solid-state software on a chip (3SoC) that is robust, energy-efficient, and potentially resistant to malware as well as quantum threats.
The first week of August 2022 saw the world’s cryptographers grapple with the second shocker of the year. Another one of the four post-quantum cryptography (PQC) algorithms selected by the NIST (National Institute of Standards and Technology) in a rigorous 5-year process was cracked by a team from Belgium. They took just 62 min and a standard laptop to break the PQC algorithm to win a USD 50,000 bounty from Microsoft. The first shocker came 6 months earlier, when another of the NIST finalists (Rainbow) was taken down. Unfortunately, both failed PQC algorithms are commercially available to consumers. With 80 of the 82 PQC candidates failing the NIST standardization process, the future of the remaining two PQC algorithms is, at best, questionable, placing the rigorous 5-year NIST exercise to build a quantum-safe encryption standard in jeopardy. Meanwhile, there is no respite from the quantum threat that looms large. It is time we take a step back and review the etiology of the problem de novo. Although state-of-the-art computer security heavily relies on cryptography, it can indeed transcend beyond encryption. This paper analyzes an encryption-agnostic approach that can potentially render computers quantum-resistant. Zero-vulnerability computing (ZVC) secures computers by banning all third-party permissions, a root cause of most vulnerabilities. ZVC eliminates the complexities of the multi-layered architecture of legacy computers and builds a minimalist, compact solid-state software on a chip (3SoC) that is robust, energy-efficient, and potentially resistant to malware as well as quantum threats.
The paper proposes strategic steps that organizations can take to future-proof their security architecture against quantum threats for the security of data integrity and confidentiality in the post-quantum era. it is a very threat that quantum computing is advancing too fast, and the classical cryptographic systems will be in danger. Therefore, we need to modify the methods of cryptography in Quantum-Safe Cryptography. In this paper, we focus on exposing the vulnerabilities of existing public-key cryptosystems faced with quantum attacks and the direction of the post-quantum cryptographic (PQC) algorithm in securing the underlain infrastructure. The paper discusses ongoing efforts to standardize cryptosystems led by the National Institute of Standards and Technology (NIST). It overviews several quantum-resistant cryptographic techniques: lattice-based, hash-based, and code-based examples. Moreover, the paper also outlines difficulties in implementing quantum-safe cryptography solutions into currently in-place cybersecurity frameworks, especially in the finance, healthcare, and critical infrastructure industries.
The paper proposes strategic steps that organizations can take to future-proof their security architecture against quantum threats for the security of data integrity and confidentiality in the post-quantum era. it is a very threat that quantum computing is advancing too fast, and the classical cryptographic systems will be in danger. Therefore, we need to modify the methods of cryptography in Quantum- Safe Cryptography. In this paper, we focus on exposing the vulnerabilities of existing public-key cryptosystems faced with quantum attacks and the direction of the post-quantum cryptographic (PQC) algorithm in securing the underlain infrastructure. The paper discusses ongoing efforts to standardize cryptosystems led by the National Institute of Standards and Technology (NIST). It overviews several quantum-resistant cryptographic techniques: lattice-based, hash-based, and code-based examples. Moreover, the paper also outlines difficulties in implementing quantum-safe cryptography solutions into currently in-place cybersecurity frameworks, especially in the finance, healthcare, and critical infrastructure industries.
The advent of quantum computing will pose a substantial threat to the security of classical cryptographic methods, which could become vulnerable to quantum-based attacks. In response to this impending challenge, the field of post-quantum cryptography has emerged, aiming to develop algorithms that can withstand the computational power of quantum computers. This study addressed the pressing concern of classical cryptographic methods becoming vulnerable to quantum-based attacks due to the rise of quantum computing. The emergence of post-quantum cryptography has led to the development of new resistant algorithms. Our research focused on four quantum-resistant algorithms endorsed by America’s National Institute of Standards and Technology (NIST) in 2022: CRYSTALS-Kyber, CRYSTALS-Dilithium, FALCON, and SPHINCS+. This study evaluated the security, performance, and comparative attributes of the four algorithms, considering factors such as key size, encryption/decryption speed, and complexity. Comparative analyses against each other and existing quantum-resistant algorithms provided insights into the strengths and weaknesses of each program. This research explored potential applications and future directions in the realm of quantum-resistant cryptography. Our findings concluded that the NIST algorithms were substantially more effective and efficient compared to classical cryptographic algorithms. Ultimately, this work underscored the need to adapt cryptographic techniques in the face of advancing quantum computing capabilities, offering valuable insights for researchers and practitioners in the field. Implementing NIST-endorsed quantum-resistant algorithms substantially reduced the vulnerability of cryptographic systems to quantum-based attacks compared to classical cryptographic methods.
Quantum Computing (QC) is hailed as the future of computers. After Google’s claim of achieving Quantum Supremacy in 2019, several groups challenged the claim. Some QC experts attribute catastrophic risks that unrestrained QC may cause in the future by collapsing the current cryptographic cybersecurity infrastructure. These predictions are relevant only if QC becomes commercially viable and sustainable in the future. No technology can be a one-way ticket to catastrophe, and neither can the definition of superiority of that technology be. If there are catastrophic risks, large-scale QC can never enter the public domain as a minimum viable product (MVP) unless there are safeguards in place. Those safeguards should obviously become an integral part of the definition of its superiority over the legacy systems. NIST (National Institute of Standards & Technology) is pursuing the standardization of Post Quantum Cryptography (PQC) as that safeguard. However, with all the 82 candidate PQCs failing and companies already offering QC as a service, there’s an urgent need for an alternate strategy to mitigate the impending Q-Day threat and render QC sustainable. Our research proposes a novel encryption-agnostic cybersecurity approach to safeguard QC. It articulates a comprehensive definition of an MVP that can potentially set a sustainable gold standard for defining commercially viable quantum advantage over classical computing.
The advent of quantum computing poses a significant threat to current cryptographic systems, particularly public-key algorithms such as RSA and ECC, which are vulnerable to quantum attacks like Shor's algorithm. Post-Quantum Cryptography (PQC) aims to develop and standardize quantum-resistant cryptographic algorithms to secure digital communications in the quantum era. This paper examines the current landscape of PQC, focusing on the evaluation and standardization efforts led by organizations such as the National Institute of Standards and Technology (NIST). We analyze the major families of quantum-resistant algorithms, including lattice-based, hash-based, code-based, multivariate, and isogeny-based cryptography, discussing their security guarantees, performance trade-offs, and implementation challenges. Furthermore, we review NIST's PQC standardization process, highlighting selected finalists and alternate candidates, and explore the ongoing transition challenges in adopting these algorithms across industries. Finally, we discuss future directions for PQC research, including hybrid cryptographic systems and the need for continued cryptanalysis to ensure long-term security. This work provides a comprehensive overview of the progress and challenges in deploying quantum-resistant cryptography to safeguard against emerging quantum threats.
Quantum computing’s arrival signals a paradigm shift in computational power that may transform several sectors, including drug discovery, artificial intelligence, materials research, and optimization [2]. However, this transformative potential also presents a significant and imminent threat to cybersecurity. At the heart of this technological shift is the ability of quantum computers to tackle the complex mathematical challenges on which modern public-key cryptography relies. Quantum algorithms, most notably Shor’s algorithm, can break problems such as integer factorization and discrete logarithms far more efficiently than classical approaches. As a result, cryptographic methods that are widely trusted today—including RSA and Elliptic Curve Cryptography (ECC)—could become insecure once large-scale quantum computing becomes a reality[1], [8].This poses a profound challenge to the confidentiality, integrity, and authenticity of digital communications, financial networks, essential infrastructure, and national defense systems [9]. To counter this emerging risk, Post-Quantum Cryptography (PQC) has become an important area of active research. The goal of PQC is to design cryptographic techniques that can withstand attacks from both conventional computers and future quantum systems, thereby preserving long-term data security in the face of advancing quantum technologies [3].A number of promising Post-Quantum Cryptography (PQC) approaches are currently being explored in depth. Among them, lattice-based cryptography has attracted significant interest, as it relies on the computational difficulty of problems like Learning With Errors (LWE) and the Shortest Vector Problem (SVP), offering both robust security assurances and practical efficiency [4], [5]. Hash-based signature schemes, such as XMSS and SPHINCS+, offer security rooted in well-established hashing techniques and stateless signature construction [7]. Additionally, code-based cryptography, including systems inspired by the McEliece cryptosystem, remains attractive for its long-standing resistance to cryptanalytic attacks [6]. Other avenues include multivariate quadratic systems and isogeny-based cryptography, each presenting unique benefits and trade-offs in terms of key size, performance, and security robustness [8].A central force driving global standardization is the NIST Post-Quantum Cryptography Standardization Project, initiated in 2016 to evaluate and establish new quantum-resilient cryptographic standards [3]. Several algorithms have already advanced to the final standardization phase, while others remain candidates for further evaluation.Despite this progress, transitioning to PQC introduces practical challenges. Integrating new cryptographic algorithms into current digital ecosystems demands considerable computational and infrastructural updates, often involving larger key sizes and increased processing overhead [10]. Organizations must also ensure crypto-agility, the capability to rapidly adapt cryptographic systems as new standards evolve or vulnerabilities are identified [11].One strategic transition approach involves hybrid cryptographic architectures, which combine conventional and quantum-safe algorithms to provide layered security during this migration period [9]. Moreover, organizations should inventory existing cryptographic assets, conduct quantum risk assessments, pilot PQC deployments, and cultivate a quantum-aware cybersecurity workforce.The threat is amplified by “harvest now, decrypt later” strategies, in which adversaries intercept encrypted data today with the intention of decrypting it once quantum capabilities mature [9]. Particularly sensitive categories — including military communications, governmental archives, personal healthcare records, and intellectual property — require immediate PQC-oriented protection.As the quantum era approaches, coordinated global action is essential to harness quantum innovation while safeguarding digital trust. Through proactive investment in research, standardization efforts, and phased post-quantum deployment, societies can preserve digital sovereignty and security resilience in the face of this technological shift [11].