Article
Quantum Science & Technology
Zhuo Wang, Jian Li, Xiu-Bo Chen, Chongqiang Ye
Summary: This paper introduces a new multi-proxy blind signature scheme based on block blind coding, which is resistant to attacks, provides strong anonymity, and is highly efficient. It is suitable for transactions or process management that require protecting user privacy and multi-party audit.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Jing-Jing Chen, Fu-Cheng You, Zhen-Zhen Li
Summary: This study proposes a new quantum multi-proxy blind signature scheme based on cluster states. The scheme allows for signature implementation without knowing the specific content and has properties such as blindness, undeniability, and unforgeability. Compared to existing schemes, this proposal utilizes fewer resources and achieves higher signature efficiency.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Physics, Multidisciplinary
Qiming Luo, Tinggui Zhang, Xiaofen Huang, Naihuan Jing
Summary: In this paper, we present two schemes for teleporting unknown entangled states using the physical characteristics of quantum mechanics. One scheme teleports a two-particle entangled state via a six-particle entangled channel, while the other scheme teleports a one-particle entangled state using a five-qubit cluster state in a two-way form. These schemes involve the use of one-way hash functions, Bell-state measurements, unitary operations, quantum key distribution protocol, and one-time pad.
Article
Physics, Multidisciplinary
Fengyin Li, Mengjiao Yang, Zhihao Song, Ping Wang, Guoping Li
Summary: Blind signatures are widely used for privacy preservation, and the use of delegation and proxy blind signatures becomes necessary when the signer cannot sign. Existing schemes are vulnerable to quantum attacks and have high overhead due to PKI. To simplify key management and resist quantum attacks, a post-quantum secure identity-based proxy blind signature (ID-Proxy-BS) scheme on a lattice is proposed, along with a quantum-resistant proxy e-voting system.
Article
Physics, Multidisciplinary
Jing Yu, Jianhua Zhang
Summary: This paper proposes a quantum (t, n) threshold proxy blind signature scheme based on Bell states, which utilizes quantum technologies and algorithms to generate valid signatures through proxy cooperation and ensures the security and confidentiality of the signatures.
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2022)
Article
Quantum Science & Technology
Ren Guo, Xiaogang Cheng
Summary: This paper points out the security loophole in the previous (t, n) threshold group signature scheme and proposes improvements by introducing a secret sharing scheme and adding a check for the honesty of the arbitrator.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Xiaoning Feng, Hongyu Wu, Xiaolong Zhou, Yao Yao
Summary: This paper presents a quantum cryptography scheme applied to financial security. By utilizing quantum entanglement and distributed quantum one-time pad algorithm, a new quantum blind signature scheme is proposed for the scenario requirements of supply chain finance.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Physics, Multidisciplinary
Faguo Wu, Bo Zhou, Xiao Zhang
Summary: This paper introduces a new identity-based proxy signature scheme using NTRU lattice with message recovery. The scheme is more efficient than existing identity-based proxy signature schemes in terms of signature size and energy cost. The paper also discusses the application scenarios of the scheme in blockchain and Internet of Things. It provides a new idea for designing lattice signature schemes in low resource constrained environments.
Article
Computer Science, Theory & Methods
Nicolas Aragon, Marco Baldi, Jean-Christophe Deneuville, Karan Khathuria, Edoardo Persichetti, Paolo Santini
Summary: The attack exploits a bias in the distribution of set bits in signatures to recover the private key. The SHMWW scheme was found to be insecure, as as few as 10 signatures were enough to successfully recover the private key, highlighting the challenges of designing secure and efficient code-based signature schemes.
DESIGNS CODES AND CRYPTOGRAPHY
(2021)
Article
Physics, Multidisciplinary
Jing Yu, Jianhua Zhang
Summary: By combining proxy threshold multiple signature with quantum signature in classical cryptography, the scheme is able to retain its original properties while enhancing security with quantum signature, resulting in a secure and practical signature scheme.
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
(2021)
Article
Physics, Multidisciplinary
Zhengying Cai, Shi Liu, Zhangyi Han, Rui Wang, Yuehua Huang
Summary: The study introduces a quantum blind multi-signature algorithm to protect industrial blockchain against quantum attacks, theoretically being absolutely secure. The algorithm involves four phases and is capable of providing good computational performance and blockchain scalability.
Article
Computer Science, Information Systems
Makwana Bhavin, Sudeep Tanwar, Navneet Sharma, Sudhanshu Tyagi, Neeraj Kumar
Summary: Insurance agencies and digitally recorded healthcare databases can help reduce the complexity and cost of the healthcare ecosystem, while blockchain technology improves system efficiency and maintains security and privacy for all stakeholders.
JOURNAL OF INFORMATION SECURITY AND APPLICATIONS
(2021)
Article
Computer Science, Information Systems
Chaoyang Li, Yuan Tian, Xiubo Chen, Jian Li
Summary: In this paper, an anti-quantum blind signature scheme based on the lattice assumption has been proposed to enhance security and efficiency in blockchain systems, combining lattice cryptography and blind signature technology. The proposed scheme meets the properties of blindness and one-more unforgeability while proving to be safe in the random oracle model. The efficiency analysis and comparison results show that the proposed scheme is more efficient and has a more stable signature size compared to similar literature and other cryptosystems.
INFORMATION SCIENCES
(2021)
Article
Physics, Applied
Ming-Hui Zhang, Jia-Hui Xie
Summary: This work proposes two fault tolerant quantum blind dual-signature (QBDS) protocols with photon quartets, which are robust against collective-dephasing noise and collective-rotation noise. The protocols provide higher communication fidelity and satisfy the characteristics of QBS protocols.
MODERN PHYSICS LETTERS B
(2022)
Article
Quantum Science & Technology
Andriyan Bilyk, Javad Doliskani, Zhiyong Gong
Summary: We investigate the security assumptions of three public-key quantum money schemes and confirm the insecurity of Aaronson and Christiano's scheme as well as Zhandry's scheme by providing polynomial time quantum algorithms to solve their underlying problems. We also propose a quantum reduction from the hard problem in Kane et al.'s scheme to a linear algebra problem. Our findings highlight the importance of further cryptanalysis in this area.
QUANTUM INFORMATION PROCESSING
(2023)
