Results 1 to 10 of about 17,540 (147)

Fast Algebraic Attacks and Decomposition of Symmetric Boolean Functions [PDF]

IEEE Transactions on Information Theory, 2009
Algebraic and fast algebraic attacks are power tools to analyze stream ciphers. A class of symmetric Boolean functions with maximum algebraic immunity were found vulnerable to fast algebraic attacks at EUROCRYPT'06. Recently, the notion of AAR (algebraic
Lin Dongdai, Liu Meicheng, Pei Dingyi
core   +2 more sources

Efficient Computation of Algebraic Immunity for Algebraic and Fast Algebraic Attacks [PDF]

Lecture Notes in Computer Science, 2006
In this paper we propose several efficient algorithms for assessing the resistance of Boolean functions against algebraic and fast algebraic attacks when implemented in LFSR-based stream ciphers. An algorithm is described which permits to compute the algebraic immunity d of a Boolean function with n variables in $\mathcal{O}(D^2)$ operations, for $D ...
Armknecht, Frederik, Carlet, Claude, Gaborit, Philippe, Künzli, Simon, Meier, Willi, Ruatta, Olivier   +5 more
openaire   +5 more sources

New Low-Memory Algebraic Attacks on LowMC in the Picnic Setting

IACR Transactions on Symmetric Cryptology, 2022
The security of the post-quantum signature scheme Picnic is highly related to the difficulty of recovering the secret key of LowMC from a single plaintext-ciphertext pair.
Fukang Liu, Willi Meier, Santanu Sarkar, Takanori Isobe   +3 more
doaj   +3 more sources

Key-Dependent Feedback Configuration Matrix of Primitive σ–LFSR and Resistance to Some Known Plaintext Attacks

IEEE Access, 2022
In this paper, we propose and evaluate a method for generating key-dependent feedback configurations (KDFC) for $\sigma $ -LFSRs. $\sigma $ -LFSRs with such configurations can be applied to any stream cipher that uses a word-based LFSR.
Subrata Nandi, Srinivasan Krishnaswamy, Behrouz Zolfaghari, Pinaki Mitra   +3 more
doaj   +1 more source

A Bound of Fast Algebraic Immunity of Constructions With BPR Using a Four-Disjoint-Part Support

IEEE Access, 2020
Boolean functions are used for stream cipher ought to be a high fast algebraic immunity (FAI) to effectively against fast algebraic attacks. In the previous research methods, there is no suitable method to gain the FAI of Boolean functions using ...
Kai Xu, Ying Zhang, Jing Wang
doaj   +1 more source

Generating highly nonlinear resilient Boolean functions resistance against algebraic and fast algebraic attacks [PDF]

Security and Communication Networks, 2014
ABSTRACTBoolean functions play an important role in the design of stream ciphers. In this paper, a simulated annealing algorithm is designed to obtain Boolean functions satisfying all the needed criteria: high nonlinearity, 1‐resiliency, optimal algebraic degree, optimal (or suboptimal) algebraic immunity, and good immunity to fast algebraic attacks ...
Jun‐Po Yang, Wei‐Guo Zhang
openaire   +1 more source

An efficient deep learning model for brain tumour detection with privacy preservation

CAAI Transactions on Intelligence Technology, EarlyView., 2023
Abstract Internet of medical things (IoMT) is becoming more prevalent in healthcare applications as a result of current AI advancements, helping to improve our quality of life and ensure a sustainable health system. IoMT systems with cutting‐edge scientific capabilities are capable of detecting, transmitting, learning and reasoning.
Mujeeb Ur Rehman, Arslan Shafique, Imdad Ullah Khan, Yazeed Yasin Ghadi, Jawad Ahmad, Mohammed S. Alshehri, Mimonah Al Qathrady, Majed Alhaisoni, Muhammad H. Zayyan   +8 more
wiley   +1 more source

KLEIN: A New Family of Lightweight Block Ciphers [PDF]

, 2010
Resource-efficient cryptographic primitives become fundamental for realizing both security and efficiency in embedded systems like RFID tags and sensor nodes.
A. Bogdanov, A. Bogdanov, A. Bogdanov, A. Juels, A. Moradi, A. Moradi, A. Satoh, B. Bilgin, B. Collard, C. Cannière De, C. Paar, C. Rolfes, C.H. Lim, C.H. Lim, D. Engels, D. Hong, E. Biham, F.X. Standaert, G. Leander, I. Dinur, J. Daemen, J. Daemen, J. Daemen, J. Daemen, J.Y. Cho, K. Ohkuma, L. Granboulan, L.R. Knudsen, L.R. Knudsen, M. Feldhofer, M. Healy, M. Matsui, M.J.O. Saarinen, O. Özen, P. Hamalainen, R. Könighofer, S. Mangard, S. Nikova, Y.W. Law, Z. Gong   +39 more
core   +10 more sources

Improved Twofish Algorithm: A Digital Image Enciphering Application

IEEE Access, 2021
With the growth of networks, the Internet of Things (IoT) and new cyber attacks pose threats to privacy and security, secure communication is therefore becoming one of the most crucial concerns.
Tanveer ul Haq, Tariq Shah, Ghazanfar Farooq Siddiqui, Muhammad Zafar Iqbal, Ibrahim A. Hameed, Huma Jamil   +5 more
doaj   +1 more source

Hybrid tabu search algorithm for excellent Boolean function

Tongxin xuebao, 2022
Boolean function in symmetric cryptographic algorithm must satisfy excellent cryptographic criteria to ensure the security of the algorithm.By combining the advantages of tabu search algorithm and hill climbing algorithm, a new heuristic generation ...
Weiqiong WANG, Haojie XU, Meng CUI, Qiong XIE   +3 more
doaj   +2 more sources