Results 81 to 90 of about 26,855 (196)

Cryptanalysis of Yang-Wang-Chang's Password Authentication Scheme with Smart Cards

, 2008
In 2005, Yang, Wang, and Chang proposed an improved timestamp-based password authentication scheme in an attempt to overcome the flaws of Yang-Shieh_s legendary timestamp-based remote authentication scheme using smart cards.
Hong, Choong Seon, Pathan, Al-Sakib Khan
core  

About Method “Meet in Middle of Attack” for Cryptanalysis of Block Ciphers by means of Distributed Computations

Безопасность информационных технологий, 2011
Distributed computations are considered as a tool of cryptanalysis. It is shown that time of implementation of “meet in the middle of attack” method using distributed computations designed for cryptanalysis of some class of iterative symmetric block ...
V. M. Fomichev
doaj  

Analysis of the cryptographic strength of the SHA-256 hash function using the SAT approach

Научно-технический вестник информационных технологий, механики и оптики
Cryptographic hash functions play a significant role in modern information security systems by ensuring data integrity and enabling efficient data compression. One of the most important and widely used cryptographic hash functions is SHA-256 that belongs
V. V. Davydov, M. D. Pikhtovnikov, A. P. Kiryanova, O. S. Zaikin   +3 more
doaj   +1 more source

Bit-Based Evaluation of Lightweight Block Ciphers SLIM, LBC-IoT, and SLA by Mixed Integer Linear Programming

IET Information Security
Many lightweight block ciphers have been proposed for IoT devices that have limited resources. SLIM, LBC-IoT, and SLA are lightweight block ciphers developed for IoT systems.
Nobuyuki Sugio
doaj   +1 more source

On relationship between differential/linear clustering effects and the number of active S-boxes in block ciphers

Cybersecurity
Differential cryptanalysis and linear cryptanalysis are the two best-known cryptanalysis techniques for symmetric-key primitives. Ensuring resistance to these attacks is critical for the security of block ciphers.
Ting Peng, Wentao Zhang, Jingsui Weng
doaj   +1 more source

Towards Analysable Chaos-based Cryptosystems: Constructing Difference Distribution Tables for Chaotic Maps

Journal of Informatics and Web Engineering
Chaos-based cryptography has yet to achieve practical, real-world applications despite extensive research. A major challenge is the difficulty in analysing the security of these cryptosystems, which often appear ad hoc in design.
Je Sen Teh, Abubakar Abba
doaj   +1 more source

Revisiting the shuffle of generalized Feistel structure

Cybersecurity
The Generalized Feistel Structure ( $$\texttt{GFS}$$ GFS ) is one of the most widely used frameworks in symmetric cipher design. In FES 2010, Suzaki and Minematsu strengthened the cryptanalysis security of $$\texttt{GFS}$$ GFS by searching for shuffles ...
Yincen Chen, Yi Guo, Xuanyu Liang, Ling Song, Qianqian Yang   +4 more
doaj   +1 more source

Cryptanalysis of LowMC instances using single plaintext/ciphertext pair

IACR Transactions on Symmetric Cryptology, 2020
Arguably one of the main applications of the LowMC family ciphers is in the post-quantum signature scheme PICNIC. Although LowMC family ciphers have been studied from a cryptanalytic point of view before, none of these studies were directly concerned ...
Subhadeep Banik, Khashayar Barooti, F. Betül Durak, Serge Vaudenay   +3 more
doaj  

Quantum Automated Tools for Finding Impossible Differentials

Mathematics
Due to the superiority of quantum computing, traditional cryptography is facing a severe threat. This makes the security evaluation of cryptographic systems in quantum attack models both significant and urgent.
Huiqin Xie, Qiqing Xia, Ke Wang, Yanjun Li, Li Yang   +4 more
doaj   +1 more source

Cryptanalysis of Selected ARX-Based Block Ciphers

Vietnam Journal of Computer Science
The security of digital communication and information systems is mostly dependent on block ciphers. ARX-based ciphers are widely used due to their simplicity and efficiency.
Praveen Kumar Gundaram
doaj   +1 more source