Quantum computing poses transformative opportunities and challenges, with cryptography at the forefront of its impact. The ACM CCS Workshop on Quantum-Resistant Cryptography and Security (QRSec 2025) provides a forum for researchers, practitioners, and industry leaders to explore advances in post-quantum cryptography (PQC) and its integration into secure systems. Building on the momentum of the NIST PQC standardization process and the release of the first standards in 2024, QRSec 2025 highlights theoretical foundations, algorithm design, engineering, and deployment strategies alongside emerging topics such as machine learning for cryptanalysis, quantum-resistant networks, blockchain, IoT, and cloud security. The program features keynotes from leading experts, technical paper sessions, and interactive panels bridging academia, industry, and government. By fostering dialogue across these communities, QRSec 2025 aims to advance the state of the art in quantum-resistant security and chart practical paths for migration and compliance in the post-quantum era.
Quantum computing poses transformative opportunities and challenges, with cryptography at the forefront of its impact. The ACM CCS Workshop on Quantum-Resistant Cryptography and Security (QRSec 2025) provides a forum for researchers, practitioners, and industry leaders to explore advances in post-quantum cryptography (PQC) and its integration into secure systems. Building on the momentum of the NIST PQC standardization process and the release of the first standards in 2024, QRSec 2025 highlights theoretical foundations, algorithm design, engineering, and deployment strategies alongside emerging topics such as machine learning for cryptanalysis, quantum-resistant networks, blockchain, IoT, and cloud security. The program features keynotes from leading experts, technical paper sessions, and interactive panels bridging academia, industry, and government. By fostering dialogue across these communities, QRSec 2025 aims to advance the state of the art in quantum-resistant security and chart practical paths for migration and compliance in the post-quantum era.
The Quantum Security and Privacy (QSec) Workshop aims to establish a focused venue dedicated to examining both the novel threats introduced by quantum technologies and the security of quantum systems themselves. By bringing together experts from traditional security domains such as post-quantum cryptography and network security, as well as from quantum computing research including quantum key distribution and quantum architectures, QSec provides a forum to expose emerging quantum-era threats by analyzing how adversaries with quantum or quantum-enhanced capabilities can undermine both classical and quantum systems. It further seeks to showcase innovative defenses by presenting hybrid cryptographic schemes, quantum-native protocols such as QKD, and hardware-level protections. In addition, the workshop aims to bridge disparate communities by fostering collaboration among researchers in cryptography, networking, architecture, and quantum information science. Finally, QSec aspires to chart a roadmap for future research by using keynotes, technical sessions, and blue-sky discussions to identify long-term challenges and research directions.
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.
The rapid advancement of quantum computing poses a critical threat to classical cryptographic schemes that secure modern distributed systems. As the deployment of distributed infrastructures—including blockchains, cloud-native applications, and edge networks—continues to grow, there is an urgent need to transition towards quantum-resistant security mechanisms. This paper provides a comprehensive examination of post-quantum cryptographic (PQC) algorithms and their applicability in distributed system architectures. We analyze the impact of quantum threats on key components of distributed systems such as communication protocols, identity management, data integrity, and consensus mechanisms. Furthermore, we evaluate current NIST-standardized PQC algorithms in terms of computational efficiency, scalability, and integration overhead within distributed environments. Challenges in key management, performance trade-offs, and implementation considerations are discussed. Finally, we propose best practices and future directions for secure, quantum-resilient distributed systems.
Quantum computing poses an existential threat to classical public-key cryptography, particularly RSA and elliptic-curve systems, which form the backbone of secure communication, authentication, and digital trust. Once scalable quantum computers emerge, algorithms such as Shor’s will be capable of breaking these schemes, jeopardizing confidentiality and integrity across the internet and enterprise systems. Post-quantum cryptography (PQC) offers a viable defense, providing quantum-resistant algorithms that can be implemented on today’s hardware and protocols. Recent standardization milestones—including NIST’s approval of ML-KEM (Kyber) for key establishment, ML-DSA (Dilithium) and SLH-DSA (SPHINCS+) for signatures, and the selection of HQC as a complementary KEM—mark a turning point for practical adoption. This paper surveys the quantum threat model, algorithm families, performance trade-offs, and integration patterns such as hybrid modes and crypto-agile architectures. It further outlines a phased migration roadmap for enterprises, emphasizing harvest-now-decrypt-later risks and compliance imperatives. By bridging technical, operational, and policy perspectives, the study provides actionable guidance to prepare organizations for a secure and quantum-resilient future.
Quantum computing is rapidly advancing, with significant implications for cybersecurity. While it holds the potential to revolutionize computation, it also poses a threat to current cryptographic systems. This tutorial introduces the fundamentals of quantum computing, explores the state of quantum software engineering, and examines the impact of quantum advancements on cryptography and cybersecurity. It will also discuss post-quantum cryptography (PQC) and strategies for transitioning to quantum-resistant cryptographic systems. The session will provide both theoretical insights and practical guidance for cybersecurity professionals preparing for dependable systems and networks in a post-quantum future.
Post-quantum cryptography (PQC) is moving from evaluation to deployment as NIST finalizes standards for ML-KEM, ML-DSA, and SLH-DSA. This survey maps the space from foundations to practice. We first develop a taxonomy across lattice-, code-, hash-, multivariate-, isogeny-, and MPC-in-the-Head families, summarizing security assumptions, cryptanalysis, and standardization status. We then compare performance and communication costs using representative, implementation-grounded measurements, and review hardware acceleration (AVX2, FPGA/ASIC) and implementation security with a focus on side-channel resistance. Building upward, we examine protocol integration (TLS, DNSSEC), PKI and certificate hygiene, and deployment in constrained and high-assurance environments (IoT, cloud, finance, blockchain). We also discuss complementarity with quantum technologies (QKD, QRNGs) and the limits of near-term quantum computing. Throughout, we emphasize crypto-agility, hybrid migration, and evidence-based guidance for operators. We conclude with open problems spanning parameter agility, leakage-resilient implementations, and domain-specific rollout playbooks. This survey aims to be a practical reference for researchers and practitioners planning quantum-safe systems, bridging standards, engineering, and operations.