Results 31 to 40 of about 43,138 (200)

FPE scheme based on k-splits Feistel network

open access: yesTongxin xuebao, 2012
The construction features and discipline of Feistel network-based FPE(format-preserving encryption)schemes were analyzed.Considering on the problem that 2-splits Feistel networks-based FPE cipher’s block size was in narrow range,a type-2 Feistel network ...
Jing-wei LI   +3 more
doaj   +2 more sources

Chosen-Key Distinguishers on 12-Round Feistel-SP and 11-Round Collision Attacks on Its Hashing Modes

open access: yesIACR Transactions on Symmetric Cryptology, 2016
Since Knudsen and Rijmen proposed the known-key attacks in ASIACRYPT 2007, the open-key model becomes more and more popular. As the other component of the open-key model, chosen-key model was applied to the full attacks on AES-256 by Biryukov et al.
Xiaoyang Dong, Xiaoyun Wang
doaj   +1 more source

A Deep Learning Approach for Active S-Box Prediction of Lightweight Generalized Feistel Block Ciphers

open access: yesIEEE Access, 2021
One of the main security requirements for symmetric-key block ciphers is resistance against differential cryptanalysis. This is commonly assessed by counting the number of active substitution boxes (S-boxes) using search algorithms or mathematical ...
Mohamed Fadl Idris   +3 more
doaj   +1 more source

SLIM: A Lightweight Block Cipher for Internet of Health Things

open access: yesIEEE Access, 2020
Nowadays, there is a strong demand for increasing the protection of resource-constrained devices such as Radio frequency identification (RFID) systems. Current cryptographic algorithms are sufficient for high-resource desktop computers.
Bassam Aboushosha   +4 more
doaj   +1 more source

A Modification of TEA Block Cipher Algorithm for Data Security (MTEA) [PDF]

open access: yesEngineering and Technology Journal, 2011
This paper attempts to develop a simple, stronger and safer cryptographic algorithm which would not only be a secure one, but also reduces total time taken for encryption and decryption.
Gaidaa Saeed Mahdi
doaj   +1 more source

Security Establishment in ADS-B by Format-Preserving Encryption and Blockchain Schemes

open access: yesApplied Sciences, 2023
In the next generation modernization plan, the automatic dependent surveillance-broadcast (ADS-B) system plays a pivotal role. However, the ADS-B’s low level of security and its vulnerabilities have raised valid concerns.
Jamal Habibi Markani   +3 more
doaj   +1 more source

A Modified Feistel Cipher Involving Modular Arithmetic Addition and Modular Arithmetic Inverse of a Key Matrix

open access: yes, 2012
In this investigation, we have modified the Feistel cipher by taking the plaintext in the form of a pair of square matrices. Here we have introduced the operation multiplication with the key matrices and the modular arithmetic addition in encryption. The
V. Sastry, K. Kumar
semanticscholar   +1 more source

Type-3 Feistel Network of The 128-bits Block Size Improved Blowfish Cryptographic Encryption [PDF]

open access: yesEngineering and Technology Journal, 2009
In this paper, a new secret-key block cipher called 128-bits Blowfish isproposed which is an evolutionary improvement of 64-bits Blowfish designed tomeet the requirements of the Advanced Encryption Standard (AES) to increasesecurity and to improve ...
Ashwaq T. Hashim
doaj   +1 more source

A Modified Feistel Cipher Involving Substitution, shifting of rows, mixing of columns, XOR operation

open access: yes, 2012
In this paper, we have developed a modification to the Feistel cipher by taking the plaintext in the form of a pair of matrices and introducing a set of functions namely, substitute, shifting of rows, mixing of columns and XOR operation with a key ...
V. Sastry, K. Kumar
semanticscholar   +1 more source

Dynamic Rounds Chaotic Block Cipher Based on Keyword Abstract Extraction

open access: yesEntropy, 2018
According to the keyword abstract extraction function in the Natural Language Processing and Information Retrieval Sharing Platform (NLPIR), the design method of a dynamic rounds chaotic block cipher is presented in this paper, which takes into account ...
Juan Wang, Qun Ding
doaj   +1 more source

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