Abstract Information security in communication networks is a persistent problem and essentially requires the usage of encryption methods. Quantum computing was first used to break encryption codes in the latter half of the 20 th century with the introduction of the SHOR algorithm. Though the recent developments in QC capabilities have increased confidentiality, integrity, and availability of networks by protecting them against passive attacks like eavesdropping yet the transformation of classical to quantum computation can bear catastrophic implications as it has the potential to put the currently secure methods of transactions in jeopardy. This paper aims at the evaluation and comparison of traditional cryptographic techniques by the application of a SWOT framework. It takes up an exploratory study of the advanced quantum computing capabilities that can pose a massive risk to network security. The various security enhancements that can be adopted in data transmission to curtail these risks post-quantum are also discussed.
Abstract Information security in communication networks is a persistent problem and essentially requires the usage of encryption methods. Quantum computing was first used to break encryption codes in the latter half of the 20 th century with the introduction of the SHOR algorithm. Though the recent developments in QC capabilities have increased confidentiality, integrity, and availability of networks by protecting them against passive attacks like eavesdropping yet the transformation of classical to quantum computation can bear catastrophic implications as it has the potential to put the currently secure methods of transactions in jeopardy. This paper aims at the evaluation and comparison of traditional cryptographic techniques by the application of a SWOT framework. It takes up an exploratory study of the advanced quantum computing capabilities that can pose a massive risk to network security. The various security enhancements that can be adopted in data transmission to curtail these risks post-quantum are also discussed.
ABSTRACT The paper examines the rise of quantum computing and its implications for cybersecurity. Quantum computers, unlike classical ones, use principles of quantum mechanics, such as superposition and entanglement, to solve complex problems exponentially faster. This poses a threat to existing cryptographic systems, especially those based on public-key encryption like RSA and ECC, which could be vulnerable to quantum algorithms such as Shor’s algorithm. The document highlights the potential for quantum computing to break current encryption methods, putting sensitive data at risk from cybercriminals. To mitigate these risks, researchers are developing post-quantum cryptography and exploring quantum-resistant security measures, such as Quantum Key Distribution (QKD), to protect data in a future quantum-powered landscape. The paper emphasizes the urgency of updating encryption and cybersecurity strategies to prepare for the impending "quantum era." keywords Quantum computer Cyber security Cryptography Algorithm Digital signature Post-quantum cryptography Quantum key distribution Cyber attack Digital infrastructure Quantum mechanism Legacy systems Quantum era
Aim: This paper aims to examine the concepts of cybersecurity and cryptography with the advent of the current quantum computing. Significance of Study: The numerous advantages attached to the use of the hyper-connected paradigm have given an inestimable and unavoidable value to its use. However, there is a need to protect information dissemination between parties to avoid the occurrence of catastrophic events that may come when an unauthorized party accesses this information. Thus, the use of quantum computing to improve the previously used cryptography for cybersecurity is very essential. Problem Statement: In the past, cryptography was the adopted method to secure information in the cyber world thereby, preventing attack and also disallowing intruders from having access to secret information. However, the advent of quantum computing to improve the efficiency of cryptography has made its application very challenging due to its complex nature. Discussion: An introduction to cryptography, cyber security, and quantum computing was executed. The mechanisms of cryptography in cyber security together with its transition into quantum cryptography were discussed. Characteristics of quantum information and quantum communication systems regarding typical examples were stated. Post-quantum cryptography as a means of handling the challenges accorded with the use of quantum cryptography was discussed. Finally, consideration was given to the development and applications of the SWOT framework for various kinds of cryptographic algorithms. Conclusion: The use of quantum cryptography has found wide applications in cybersecurity. Also, post-quantum cryptography has been proven to be effective in handling issues arising from the use of quantum cryptography in securing information from being accessed by a third party.
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].
Encryption is required to address the ongoing issue of information security within communication networks. In the second part of the 20th century, quantum computing was first utilized to crack encryption protocols with the SHOR algorithm's development. The transformation from traditional to computational has the possibility of jeopardizing the protection of the current transaction system, even though recent improvements in QC functionality have increased the privacy and security, integrity, and accessibility of networks by shielding them from attacks like eavesdropping. This research adopts a comprehensive literature review approach to clarify the effects of quantum computers on information security. In addition, the study provides a summary of current efforts to guard against quantum attacks. Examining all suggested information security and privacy safeguards, this study examines the additional issue that quantum computers would severely damage information security.
The emergence of quantum computing is set to reshape the landscape of cybersecurity, presenting a blend of significant challenges and groundbreaking opportunities. This paper delves into the growing risks tied to quantum technologies, with a particular focus on post-quantum cryptography (PQC) and the threats posed by the possible obsolescence of traditional cryptographic methods. As quantum computing capabilities advance at a rapid pace, the need for the development of quantum-resistant security protocols has become more urgent than ever. This research investigates the vulnerabilities of current cryptographic systems, the potential dangers posed by quantum computing, and the solutions already available in the field of post-quantum cryptography. Furthermore, the paper outlines a comprehensive framework for cybersecurity solutions that are resilient to future quantum threats, emphasizing the importance of collaboration across academic, industrial, and governmental sectors. By reviewing current literature and technological developments, this paper provides a roadmap for transitioning to quantum-safe security practices, addressing the risks brought on by quantum advancements, and ensuring that critical infrastructure is well-defended against quantum-driven attacks. The findings indicate that while quantum computing introduces profound risks to traditional cybersecurity systems, a proactive, strategic adoption of PQC solutions can effectively protect vital infrastructure in the post-quantum age.
The advent of quantum computing represents a transformative leap in computational power, offering the potential to solve complex problems beyond the reach of classical computers. However, this power also presents significant cybersecurity risks, as quantum algorithms can potentially break widely used encryption methods, jeopardizing data privacy and secure communications. This paper presents a comprehensive review of emerging quantum-related cybersecurity threats and explores defense mechanisms designed to mitigate these risks. We examine both theoretical and real-world implications of quantum computing on cryptographic systems, highlighting recent developments in post-quantum cryptography, Quantum Key Distribution (QKD), and hybrid classical-quantum security solutions. This review aims to provide a foundational understanding of the threats quantum computing poses to cybersecurity and discusses current and future defenses essential for safeguarding digital infrastructure.