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.
| Mualliflar | Rahmatullayev, I.R., Abduraximov, B.F. |
|---|---|
| Jurnal | Рақамли технологияларнинг назарий ва амалий масалалари |
| Nashr sanasi | 2025-04-06 |
| Jild | 8 |
| Son | 1 |
| Betlar | 122-128 |
| Til | Rus |
| DOI | 10.62132/ijdt.v8i1.240 |
DOI: 10.62132/ijdt.v8i1.240 · Maqolaning asl sahifasi
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
In this article, a comparative analysis of various materials used in the manufacture of antenna devices is carried out. During the analysis, the properties of traditional, composite, and metamaterials were studied, and…
This article proposes a conceptual approach to optimizing decision-making processes in Business Intelligence systems based on the Pareto-optimal approach and the concept of self-adaptive agents. Business Intelligence…
Natural Language Processing (NLP) has witnessed remarkable advancements in recent years, driven by the development of sophisticated algorithms and models such as GPT-4, T5, and BERT. These models have revolutionized the…
A methodology has been developed for optimizing the identification, recognition, and classification of micro-objects based on dynamic models combined with neural networks with tools for filtering impulse interference…
The article considers the problem of forecasting changes in groundwater levels using numerical methods based on a three-dimensional nonlinear mathematical model. The model takes into account factors affecting the…
This article focuses on developing a mathematical model intended for monitoring, forecasting, and guiding management decisions related to environmental protection in the surface layer of the atmosphere. The article…
The article is devoted to the development of an information model of vocational guidance, focused on the analysis of competencies using the k-nearest neighbors (k-NN) method. In this work, the method is used to assess…
This study addresses the problem of detecting and correcting spelling errors in Uzbek texts. Due to the complex morphological structure and agglutinative nature of the Uzbek language, traditional spell-checking methods…
This study analyzes the efficiency of SHA (Secure Hash Algorithm) family algorithms depending on message length. The execution time of hashing processes for SHA-1 and SHA-2 (SHA-224, SHA-256, SHA-384, SHA-512)…
The article discusses the development of an algorithm and software for calculating the hydraulic resistance coefficient of complex gas pipeline systems. The methodology for selecting the initial data, the mathematical…
Рақамли технологияларнинг назарий ва амалий масалалари — barcha maqolalar