New approaches to assessing the resilience of the A5/1 stream cipher algorithm

Rahmatullayev, I.R., Abduraximov, B.F.

Рақамли технологияларнинг назарий ва амалий масалалари · 2025-yil

Annotatsiya

This article analyzes the vulnerabilities of the A5/1 stream cipher algorithm and proposes two new approaches to attack it. The first method is based on reconstructing the values of registers by analyzing the dependencies of majority bits, while the second method focuses on reverse-calculating the initial values of registers. Research results indicate that the A5/1 algorithm has weaknesses that can be exploited to recover the initial state of registers or predict the key stream in advance. This article aims to explore the possibilities for in-depth cryptanalysis of the A5/1 algorithm, develop new attack methods, and assess the algorithm's security level.

Maqola ma’lumotlari
MualliflarRahmatullayev, I.R., Abduraximov, B.F.
JurnalРақамли технологияларнинг назарий ва амалий масалалари
NashriyotТАТУ Самарқанд филиали
ISSN2181-3086, 2181-3094
Nashr sanasi2025-04-06
Jild8
Son1
Betlar122-128
TilIngliz
Ilmiy sohaTexnika
DOI10.62132/ijdt.v8i1.240
Indeksga qo‘shilgan2026-08-26

DOI: 10.62132/ijdt.v8i1.240 · Maqolaning asl sahifasi

Kalit so‘zlar

A5/1, oqimli shifrlash, kriptotahlil, majority biti, LFSR, kalit oqimi, teskari hisoblash, GSM xavfsizligi, shifrlash algoritmlari, zaiflik tahlili, A5/1, stream cipher, cryptanalysis, majority bit, LFSR, key stream, reverse calculation, GSM security, encryption algorithms, vulnerability analysis

Ilmiy soha

Texnika

Iqtibos keltirish

APARahmatullayev, I.R., & Abduraximov, B.F. (2025). New approaches to assessing the resilience of the A5/1 stream cipher algorithm. Рақамли технологияларнинг назарий ва амалий масалалари, 8(1), 122-128. https://doi.org/10.62132/ijdt.v8i1.240
GOST (OAK)Rahmatullayev, I.R., Abduraximov, B.F. New approaches to assessing the resilience of the A5/1 stream cipher algorithm // Рақамли технологияларнинг назарий ва амалий масалалари. – 2025. – T. 8, № 1. – P. 122-128. – DOI: 10.62132/ijdt.v8i1.240.
MLARahmatullayev, I.R., and Abduraximov, B.F. “New approaches to assessing the resilience of the A5/1 stream cipher algorithm.” Рақамли технологияларнинг назарий ва амалий масалалари, 8(1), 122-128, 2025. https://doi.org/10.62132/ijdt.v8i1.240
ChicagoRahmatullayev, I.R., and Abduraximov, B.F. “New approaches to assessing the resilience of the A5/1 stream cipher algorithm.” Рақамли технологияларнинг назарий ва амалий масалалари, 8(1), 122-128 (2025). https://doi.org/10.62132/ijdt.v8i1.240
HarvardRahmatullayev, I.R., and Abduraximov, B.F (2025) ‘New approaches to assessing the resilience of the A5/1 stream cipher algorithm’, Рақамли технологияларнинг назарий ва амалий масалалари, 8(1), 122-128. https://doi.org/10.62132/ijdt.v8i1.240
BibTeX
@article{rahmatullayevir2025,
  title = {New approaches to assessing the resilience of the A5/1 stream cipher algorithm},
  author = {Rahmatullayev, I.R. and Abduraximov, B.F.},
  journal = {Рақамли технологияларнинг назарий ва амалий масалалари},
  year = {2025},
  volume = {8},
  number = {1},
  pages = {122-128},
  doi = {10.62132/ijdt.v8i1.240},
  url = {https://doi.org/10.62132/ijdt.v8i1.240}
}

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