Zobrazeno 1 - 10 of 43 pro vyhledávání: '"Jacek Pomykała"'
1
Akademický článek
Multi-threshold signature
Autor: Bartosz Nakielski, Jacek Pomykała, Janusz Andrzej Pomykała
Publikováno v: Journal of Telecommunications and Information Technology, Iss 1 (2023)
The work presents a new signature scheme, called the multi-threshold signature, which generalizes the concept of multisignature and threshold signature. This scheme protects the anonymity of signers in a way the group signature does – in exceptiona
Externí odkaz: https://doaj.org/article/64beb857932c4d02a608c2ffbfffefde
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2
Akademický článek
ID-Based Digital Signatures with Security Enhanced Approach
Autor: Jacek Pomykała
Publikováno v: Journal of Telecommunications and Information Technology, Iss 4 (2023)
n the paper the ID-based digital signatures with signer’s protection in case of the private key compromising is investigated. The proposed protocols have two main ingredients. First is the application of the credential system for the suitable verif
Externí odkaz: https://doaj.org/article/276efe279b4041728c0662fcb0ab17e4
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3
Akademický článek
Simple Dynamic Threshold Decryption Based on CRT and RSA
Autor: Bartosz Nakielski, Jacek Pomykała
Publikováno v: Journal of Telecommunications and Information Technology, Iss 2 (2023)
In the paper we present a simple threshold decryption system based on the RSA cryptosystem. Our model avoids the application of the Shamir secret sharing protocol and is based only on the Chinese reminder theorem. The flexibility in the threshold lev
Externí odkaz: https://doaj.org/article/4ff9c1fd2fe847bdadddbc822e43b9e4
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4
Akademický článek
ID-based, Proxy, Threshold Signature Scheme
Autor: Jacek Pomykała, Henryk Kułakowski, Piotr Sapiecha, Błażej Grela
Publikováno v: International Journal of Electronics and Telecommunications, Vol vol. 67, Iss No 2, Pp 201-205 (2021)
We propose the proxy threshold signature scheme with the application of elegant construction of verifiable delegating key in the ID-based infrastructure, and also with the bilinear pairings. The protocol satisfies the classical security requirements
Externí odkaz: https://doaj.org/article/b3a90df4619d4116892009f31766c1e1
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6
Signatures of Dirichlet characters and elliptic curves
Autor: Andrzej Dąbrowski, Jacek Pomykała
Publikováno v: Journal of Number Theory. 220:94-106
We prove a lower bound for the number of conductors q ≤ Q with q ≡ 1 ( mod r ) having t prime divisors of Dirichlet characters χ of fixed order r and with given values χ ( p ) for primes p ≤ B . We also give an elliptic curve variant of this
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4255d763cb203e75c027175fc6d24b5
https://doi.org/10.1016/j.jnt.2020.08.005
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7
Preface for the Number-Theoretic Methods in Cryptology conferences
Autor: Antoine Joux, Jacek Pomykała
Publikováno v: Journal of Mathematical Cryptology, Vol 14, Iss 1, Pp 393-396 (2020)
Number-Theoretic Methods in Cryptology (NutMiC) is a bi-annual series of conferences that waslaunched in 2017. Its goal is to spur collaborations between cryptographers and number-theorists and to encourage progress on the number-theoretic hard probl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eee584e0b9d18959824ac1a23eda650
https://doi.org/10.1515/jmc-2019-0111
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8
Integer factoring and compositeness witnesses
Autor: Maciej Radziejewski, Jacek Pomykała
Publikováno v: Journal of Mathematical Cryptology, Vol 14, Iss 1, Pp 346-358 (2020)
We describe a reduction of the problem of factorization of integers n ≤ x in polynomial-time (log x)M+O(1) to computing Euler’s totient function, with exceptions of at most xO(1/M) composite integers that cannot be factored at all, and at most x
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c91e524d99f2201728827c4a44f21fd
https://doaj.org/article/105925cdda18429f9c41701c2f971e1c
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