Results 31 to 40 of about 4,408,556 (205)

Proposed 256 bits RC5 Encryption Algorithm Using Type-3 Feistel Network [PDF]

open access: yesEngineering and Technology Journal, 2010
Proposed 256 bits RC5 is an improvement to RC5, designed to meetthe requirements of increased security and better performance. Proposed256 bits RC5 algorithm makes use of data dependent rotations.
Yossra H. Ali
doaj   +1 more source

Developments in generalised Feistel networks

open access: yesElectronics Letters, 1999
Nyberg (1996) obtained an upper bound on the maximum average of differential probability for a generalised Feistel network. A counter-example to this result is given.
null Chee   +3 more
openaire   +1 more source

Efficient Search for Optimal Diffusion Layers of Generalized Feistel Networks

open access: yesIACR Transactions on Symmetric Cryptology, 2019
The Feistel construction is one of the most studied ways of building block ciphers. Several generalizations were then proposed in the literature, leading to the Generalized Feistel Network, where the round function first applies a classical Feistel ...
Patrick Derbez   +3 more
doaj   +1 more source

An Improvement of Serpent Algorithm [PDF]

open access: yesEngineering and Technology Journal, 2005
An improvement to Serpent algorithm will be proposed . Serpent algorithm is a Feistel network , iterating a simple encryption function 32 times . The block size is 256 bits , and the key can be any length up to 256 bytes .
Saleh Al - Karaawy, Ashwaq Hashim
doaj   +1 more source

Enabling secure data transmission for wireless sensor networks based IoT applications

open access: yesAin Shams Engineering Journal, 2023
The high volume of sensed and transferred data among nodes on wireless sensor networks makes it necessary to keep the data safe. This study offers an improved security mechanism, taking the application, security level, and bit error rate into account for
Uras Panahi, Cüneyt Bayılmış
doaj   +1 more source

Cryptanalysis of Feistel Networks with Secret Round Functions [PDF]

open access: yes, 2016
Generic distinguishers against Feistel Network with up to 5 rounds exist in the regular setting and up to 6 rounds in a multi-key setting. We present new cryptanalyses against Feistel Networks with 5, 6 and 7 rounds which are not simply distinguishers but actually recover completely the unknown Feistel functions. When an exclusive-or is used to combine
Alex Biryukov   +2 more
openaire   +4 more sources

A lightweight cryptographic algorithm for the transmission of images from road environments in self-driving

open access: yesCybersecurity, 2021
With the large-scale application of 5G in industrial production, the Internet of Things has become an important technology for various industries to achieve efficiency improvement and digital transformation with the help of the mobile edge computing.
Runchen Gao, Shen Li, Yuqi Gao, Rui Guo
doaj   +1 more source

Weak Tweak-Keys for the CRAFT Block Cipher

open access: yesIACR Transactions on Symmetric Cryptology, 2022
CRAFT is a lightweight tweakable Substitution-Permutation-Network (SPN) block cipher optimized for efficient protection of its implementations against Differential Fault Analysis (DFA) attacks.
Gregor Leander, Shahram Rasoolzadeh
doaj   +1 more source

Cellular Neural Network Encryption Scheme for Time Synchronization and CPAs Resistance in OFDM-PON

open access: yesIEEE Access, 2019
In this paper, we first experimentally demonstrate a novel cellular neural network (CNN)-based physical layer encryption scheme to achieve the capability of chosen-plaintext attacks (CPAs) resistance and time synchronization simultaneously in orthogonal ...
Meihua Bi   +4 more
doaj   +1 more source

Integral and impossible‐differential attacks on the reduced‐round Lesamnta‐LW‐BC

open access: yesIET Information Security, 2022
Lesamnta‐LW‐BC is the internal block cipher of the Lesamnta‐LW lightweight hash function, specified in ISO/IEC 29192‐5:2016. It is based on the unbalanced Feistel network and Advanced Encryption Standard round function.
Rentaro Shiba   +4 more
doaj   +1 more source

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