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A new type of digital signature algorithms with a hidden group [PDF]

open access: yesComputer Science Journal of Moldova, 2023
The known designs of digital signature schemes with a hidden group, which use finite non-commutative algebras as algebraic support, are based on the computational complexity of the so-called hidden discrete logarithm problem.
Dmitriy N. Moldovyan
doaj   +1 more source

Solving systems of Boolean multivariate equations with quantum annealing

open access: yesPhysical Review Research, 2022
Polynomial systems over the binary field have important applications, especially in symmetric and asymmetric cryptanalysis, multivariate-based postquantum cryptography, coding theory, and computer algebra.
Sergi Ramos-Calderer   +6 more
doaj   +1 more source

Recent progress in the security evaluation of multivariate public‐key cryptography

open access: yesIET Information Security, 2023
Multivariate public‐key cryptography (MPKC) is considered a leading candidate for post‐quantum cryptography (PQC). It is based on the hardness of the multivariate quadratic polynomial (MQ) problem, which is a problem of finding a solution to a system of ...
Yasuhiko Ikematsu   +2 more
doaj   +1 more source

Selection Strategy of F4-Style Algorithm to Solve MQ Problems Related to MPKC

open access: yesCryptography, 2023
Multivariate public-key cryptosystems are potential candidates for post-quantum cryptography. The security of multivariate public-key cryptosystems relies on the hardness of solving a system of multivariate quadratic polynomial equations.
Takashi Kurokawa   +4 more
doaj   +1 more source

Bent-cable Regression Applied to the Daily Maximum Temperature in Cairo Through 2021 [PDF]

open access: yesالمجلة العلمية للدراسات والبحوث المالية والتجارية, 2023
We use the so-called bent-cable model to describe the daily maximum temperature in Cairo, Egypt through 2021which exhibit a potentially sharp change in slope. The model comprises two linear segments, joined smoothly by a quadratic bend. The class of bent
سماح عبد العزيز   +1 more
doaj   +1 more source

An Efficient MQ-Signature Scheme Based on Sparse Polynomials

open access: yesIEEE Access, 2020
Multivariate quadratic (MQ) equations-based cryptography is one of the most promising alternatives for currently used public-key cryptographic algorithms in the post-quantum era.
Kyung-Ah Shim   +2 more
doaj   +1 more source

Efficient Implementations of Rainbow and UOV using AVX2

open access: yesTransactions on Cryptographic Hardware and Embedded Systems, 2021
A signature scheme based on multivariate quadratic equations, Rainbow, was selected as one of digital signature finalists for NIST Post-Quantum Cryptography Standardization Round 3.
Kyung-Ah Shim, Sangyub Lee, Namhun Koo
doaj   +1 more source

Integrity Constraints Revisited: From Exact to Approximate Implication [PDF]

open access: yesLogical Methods in Computer Science, 2022
Integrity constraints such as functional dependencies (FD) and multi-valued dependencies (MVD) are fundamental in database schema design. Likewise, probabilistic conditional independences (CI) are crucial for reasoning about multivariate probability ...
Batya Kenig, Dan Suciu
doaj   +1 more source

Quantum attack-resistent certificateless multi-receiver signcryption scheme. [PDF]

open access: yesPLoS ONE, 2013
The existing certificateless signcryption schemes were designed mainly based on the traditional public key cryptography, in which the security relies on the hard problems, such as factor decomposition and discrete logarithm.
Huixian Li   +3 more
doaj   +1 more source

Beam Allocation and Power Optimization for Energy-Efficiency in Multiuser mmWave Massive MIMO System

open access: yesSensors, 2021
This paper studies beam allocation and power optimization scheme to decrease the hardware cost and downlink power consumption of a multiuser millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) system.
Saidiwaerdi Maimaiti   +3 more
doaj   +1 more source

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