Results 81 to 90 of about 1,350,341 (295)

Quantum signature scheme for known quantum messages

open access: yes, 2018
When we want to sign a quantum message that we create, we can use arbitrated quantum signature schemes which are possible to sign for not only known quantum messages but also unknown quantum messages.
김태완, 이향숙
core   +1 more source

A Secure and Privacy-Preserving Signature Protocol Using Quantum Teleportation in Metaverse Environment

open access: yesIEEE Access
The burgeoning concept of the metaverse as an interconnected virtual space represents the forefront of the next-generation internet. Quantum teleportation, known for its prowess in ensuring secure and reliable communications, stands poised to ...
Pankaj Kumar   +6 more
doaj   +1 more source

Novel One Time Signatures (NOTS): A Compact Post-Quantum Digital Signature Scheme

open access: yesIEEE Access, 2020
The future of the hash based digital signature schemes appears to be very bright in the upcoming quantum era because of the quantum threats to the number theory based digital signature schemes.
Furqan Shahid   +3 more
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben   +6 more
wiley   +1 more source

An Efficient Signature Scheme From Supersingular Elliptic Curve Isogenies

open access: yesIEEE Access, 2019
Since supersingular elliptic curve isogenies are one of the several candidate sources of hardness for building post-quantum cryptographic primitives, the research of efficient signature schemes based on them is still a hot topic.
Yan Huang   +3 more
doaj   +1 more source

Quantifying Subsurface Weak in‐Plane Magnetization of Mixed Phase BiFeO3 by Scanning Nitrogen Vacancy Magnetometry

open access: yesAdvanced Functional Materials, EarlyView.
We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang   +14 more
wiley   +1 more source

Tightly Secure Lattice Identity-Based Signature in the Quantum Random Oracle Model

open access: yes, 2023
We present a quantumly secure identity-based signature scheme based on the standard short integer solution problem, featuring tight security reductions in the quantum and classic random oracle models. The scheme has short signatures.
Li, Qinyi, Foo, Ernest
core   +1 more source

CUDA Quantum

open access: yes
<p>The 0.7.0 release adds support for using NVIDIA Quantum Cloud, giving you access to our most powerful GPU-accelerated simulators even if you don't have an NVIDIA GPU. With 0.7.0, we have furthermore greatly increased expressiveness of the Python
The CUDA Quantum development team
core   +2 more sources

A Secure Cryptocurrency Scheme Based on Post-Quantum Blockchain

open access: yesIEEE Access, 2018
Nowadays, blockchain has become one of the most cutting-edge technologies, which has been widely concerned and researched. However, the quantum computing attack seriously threatens the security of blockchain, and related research is still less. Targeting
Yu-Long Gao   +5 more
doaj   +1 more source

Comment on “Arbitrated quantum-signature scheme” [PDF]

open access: yesPhysical Review A, 2008
We investigate the quantum signature scheme proposed by Zeng and Keitel [Phys. Rev. A 65, 042312 (2002)]. It uses Greenberger-Horne-Zeilinger (GHZ) states and the availability of a trusted arbitrator. However, in our opinion the protocol is not clearly operationally defined and several steps are ambiguous.
Curty, M., Luetkenhaus, N.
openaire   +3 more sources

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