Results 11 to 20 of about 25,650 (293)

A Blockchain Smart Contract Based on Light- Weighted Quantum Blind Signature

IEEE Access, 2019
To improve the security performance of blockchain smart contracts against quantum attacks, a smart contract based on light-weighted quantum blind signature is proposed here.
Zhengying Cai, Jing Qu, Pingping Liu, Jiao Yu   +3 more
doaj   +3 more sources

Logarithmic-Size Post-Quantum Linkable Ring Signatures Based on Aggregation Operations [PDF]

Entropy
Linkable ring signatures are a type of ring signature scheme that can protect the anonymity of signers while allowing the public to verify whether the same signer has signed the same message multiple times.
Minghui Zheng, Shicheng Huang, Deju Kong, Xing Fu, Qiancheng Yao, Wenyi Hou   +5 more
doaj   +2 more sources

A Quantum Proxy Signature Scheme Without Restrictions on the Identity and Number of Verifiers [PDF]

Entropy
Quantum digital signatures (QDS) establish a framework for information-theoretically secure authentication in quantum networks. As a specialized extension of QDS, quantum proxy signatures facilitate secure delegation of signing privileges in distributed ...
Siyu Xiong
doaj   +2 more sources

Quantum messages with signatures forgeable in arbitrated quantum signature schemes [PDF]

Physica Scripta, 2018
Even though a method to perfectly sign quantum messages has not been known, the arbitrated quantum signature scheme has been considered as one of the good candidates.
김태완
core   +3 more sources

Unconditionally Secure Quantum Signatures [PDF]

Entropy, 2015
Signature schemes, proposed in 1976 by Diffie and Hellman, have become ubiquitous across modern communications. They allow for the exchange of messages from one sender to multiple recipients, with the guarantees that messages cannot be forged or tampered
Ryan Amiri, Erika Andersson
doaj   +3 more sources

Quantum Digital Signature Using Entangled States for Network [PDF]

Entropy
We propose an entanglement-based quantum digital signature (QDS) protocol optimized for quantum networks. The protocol follows the Lamport-inspired QDS paradigm but eliminates QKD post-processing by signing and verifying with raw conclusive keys, thereby
Changho Hong, Youn-Chang Jeong, Osung Kwon, Se-Wan Ji   +3 more
doaj   +2 more sources

Digital Signatures with Quantum Candies [PDF]

Entropy, 2022
Quantum candies (qandies) represent a type of pedagogical simple model that describes many concepts from quantum information processing (QIP) intuitively without the need to understand or make use of superpositions and without the need of using complex algebra. One of the topics in quantum cryptography that has gained research attention in recent years
Tal Mor, Roman Shapira, Guy Shemesh
openaire   +4 more sources

Classical Communication Coset State (t,n) Threshold Quantum Digital Signature

IEEE Access, 2023
In the field of quantum communication, classical communication processes have become a central open problem, especially in quantum threshold signature schemes.
Qingshui Xue, Zixuan Lu, Jing Han, Jiewei Cai   +3 more
doaj   +1 more source

Generalized Quantum-Assisted Digital Signature

IEEE Transactions on Quantum Engineering
This article introduces generalized quantum-assisted digital signature (GQaDS), an improved version of a recently proposed scheme whose information-theoretic security is inherited by adopting quantum key distribution keys for digital signature purposes ...
Marco Ferrari, Alberto Tarable, Elisabetta Storelli, Rudi Paolo Paganelli, Alberto Gatto   +4 more
core   +3 more sources

Two Quantum Proxy Blind Signature Schemes Based on Controlled Quantum Teleportation

Entropy, 2022
We present a scheme for teleporting an unknown, two-particle entangled state with a message from a sender (Alice) to a receiver (Bob) via a six-particle entangled channel.
Qiming Luo, Tinggui Zhang, Xiaofen Huang, Naihuan Jing   +3 more
doaj   +1 more source