2160 matches found
Secure and Efficient Quantum Signature Scheme Based on the Controlled Unitary Operations Encryption
Quantum digital signatures ensure unforgeable message authenticity and integrity using quantum principles, offering unconditional security against both classical and quantum attacks. They are crucial for secure communication in high-stakes environments, ensuring trust and long-term protection in...
Hybrid Quantum Security for IPsec
Quantum Key Distribution QKD offers information-theoretic security against quantum computing threats, but integrating QKD into existing security protocols remains an unsolved challenge due to fundamental mismatches between pre-distributed quantum keys and computational key exchange paradigms. Thi...
Implementing and Evaluating Post-Quantum DNSSEC in CoreDNS
The emergence of quantum computers poses a significant threat to current secure service, application and/or protocol implementations that rely on RSA and ECDSA algorithms, for instance DNSSEC, because public-key cryptography based on number factorization or discrete logarithm is vulnerable to...
Breaking a 5-Bit Elliptic Curve Key Using a 133-Qubit Quantum Computer
This experiment breaks a 5-bit elliptic curve cryptographic key using a Shor-style quantum attack. Executed on IBM's 133-qubit ibmtorino with Qiskit Runtime 2.0, a 15-qubit circuit, comprised of 10 logical qubits and 5 ancilla, interferes over an order-32 elliptic curve subgroup to extract the...
Evaluating Post-Quantum Cryptographic Algorithms on Resource-Constrained Devices
Whitepaper called Evaluating Post-Quantum Cryptographic Algorithms On Resource-Constrained Devices...
Quantum-Resilient Privacy Ledger (QRPL): a Sovereign Digital Currency for the Post-Quantum Era
The emergence of quantum computing presents profound challenges to existing cryptographic infrastructures, whilst the development of central bank digital currencies CBDCs has raised concerns regarding privacy preservation and excessive centralisation in digital payment systems. This paper propose...
Entangled Threats: a Unified Kill Chain Model for Quantum Machine Learning Security
Quantum Machine Learning QML systems inherit vulnerabilities from classical machine learning while introducing new attack surfaces rooted in the physical and algorithmic layers of quantum computing. Despite a growing body of research on individual attack vectors - ranging from adversarial poisoni...
CVE-2025-52473 liboqs secret-dependent branching in HQC reference implementation when compiled with Clang 17-20
liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. Multiple secret-dependent branches have been identified in the reference implementation of the HQC key encapsulation mechanism when it is compiled with Clang for optimization levels...
PT-2025-29131
Name of the Vulnerable Software and Affected Versions: liboqs versions prior to 0.14.0 Description: liboqs is a C-language cryptographic library providing post-quantum cryptography algorithm implementations. Secret-dependent branches were identified in the HQC key encapsulation mechanism referenc...
liboqs 信息泄露漏洞
liboqs is an Open Quantum Safe open source C library for quantum-safe cryptographic algorithms. An information disclosure vulnerability exists in liboqs versions prior to 0.14.0, which stems from a secret dependency branch in the HQC key wrapping mechanism...
Quantum Properties Trojans (QuPTs) for Attacking Quantum Neural Networks
Quantum neural networks QNN hold immense potential for the future of quantum machine learning QML. However, QNN security and robustness remain largely unexplored. In this work, we proposed novel Trojan attacks based on the quantum computing properties in a QNN-based binary classifier. Our propose...
AdeptHEQ-FL: Adaptive Homomorphic Encryption for Federated Learning of Hybrid Classical-Quantum Models with Dynamic Layer Sparing
Federated Learning FL faces inherent challenges in balancing model performance, privacy preservation, and communication efficiency, especially in non-IID decentralized environments. Recent approaches either sacrifice formal privacy guarantees, incur high overheads, or overlook quantum-enhanced...
Q-Detection: a Quantum-Classical Hybrid Poisoning Attack Detection Method
Data poisoning attacks pose significant threats to machine learning models by introducing malicious data into the training process, thereby degrading model performance or manipulating predictions. Detecting and sifting out poisoned data is an important method to prevent data poisoning attacks...
Quantum Protocols for Rabin Oblivious Transfer
Rabin oblivious transfer is the cryptographic task where Alice wishes to receive a bit from Bob but it may get lost with probability 1/2. In this work, we provide protocol designs which yield quantum protocols with improved security. Moreover, we provide a constant lower bound on any quantum...
HexaMorphHash HMH - Homomorphic Hashing for Secure and Efficient Cryptographic Operations in Data Integrity Verification
In the realm of big data and cloud computing, distributed systems are tasked with proficiently managing, storing, and validating extensive datasets across numerous nodes, all while maintaining robust data integrity. Conventional hashing methods, though straightforward, encounter substan tial...
Unifying Communication Paradigms in Delegated Quantum Computing
Delegated quantum computing DQC allows clients with low quantum capabilities to outsource computations to a server hosting a quantum computer. This process is typically envisioned within the measurement-based quantum computing framework, as it naturally facilitates blindness of inputs and...
Adversarial Threats in Quantum Machine Learning: a Survey of Attacks and Defenses
Quantum Machine Learning QML integrates quantum computing with classical machine learning, primarily to solve classification, regression and generative tasks. However, its rapid development raises critical security challenges in the Noisy Intermediate-Scale Quantum NISQ era. This chapter examines...
An ETSI GS QKD Compliant TLS Implementation
A modification of the TLS protocol is presented, using our implementation of the Quantum Key Distribution QKD standard ETSI GS QKD 014 v1.1.1. We rely on the Rustls library for this. The TLS protocol is modified while maintaining backward compatibility on the client and server side. We thus wish ...
Quantum-Resistant Domain Name System: a Comprehensive System-Level Study
The Domain Name System DNS plays a foundational role in Internet infrastructure, yet its core protocols remain vulnerable to compromise by quantum adversaries. As cryptographically relevant quantum computers become a realistic threat, ensuring DNS confidentiality, authenticity, and integrity in t...