Results 171 to 180 of about 43,138 (200)

SVHF: A Lightweight Stream Cipher Based on Feistel and OFB

2021
For the demand of the resource constrained mobile terminal to the lightweight cipher, this paper presents a new lightweight stream cipher, which is based on the Feistel and OFB mode called SVHF. Similar to many other lightweight stream ciphers, the key-stream size of SVHF is 128-bit while the IV is specified to be 128 bits.
Yuhua Huang, Wei Zhu, Wanlin Sun, Xuejun Dai, Shen Li   +4 more
openaire   +1 more source

A Feistel-based modification of the PRESENT lightweight block cipher

Future Technology
The PRESENT block cipher is commonly used in constrained devices, such as IoT nodes, low-power wireless sensors, and RFID tags, due to its low power consumption, small hardware footprint, and acceptable security margin.
Ghassan Salloom, Karam J. Mohammed, Shroog Hameed, Khanssaa Abdul Majed   +3 more
semanticscholar   +1 more source

Swarm intelligence algorithms in cryptanalysis of simple Feistel ciphers

International Journal of Information and Communication Technology, 2018
Recent cryptosystems constitute a hard task for cryptanalysis algorithms due to the nonlinearity of their structure. This problem can be formulated as NP-hard. It has long been subject to various attacks; related results remain insufficient especially when handling wide instances due to resources requirement which increase with the size of the problem.
Tahar Mekhaznia 0001, Abdelmadjid Zidani
openaire   +1 more source

On the hypothesis of stochastic equivalence for Feistel ciphers

Proceedings. 1998 IEEE International Symposium on Information Theory (Cat. No.98CH36252), 2002
We construct new S-boxes which provide Feistel ciphers with a high resistance against differential cryptanalysis.
openaire   +1 more source

Balanced Feistel Ciphers, First Properties

2017
Feistel ciphers are named after Horst Feistel who studied these schemes in the 1960s. In this chapter, we will only present classical Feistel ciphers, i.e. balanced Feistel ciphers with the ⊕ group law (Xor). In Chaps. 8, 9 and 10, we will see that there are many variants of these ciphers.
Valerie Nachef, Jacques Patarin, Emmanuel Volte   +2 more
openaire   +1 more source

On the Indifferentiability of Key-Alternating Feistel Ciphers with No Key Derivation

2015
Feistel constructions have been shown to be indifferentiable from random permutations at STOC 2011. Whereas how to properly mix the keys into an un-keyed Feistel construction without appealing to domain separation technique to obtain a block cipher which is provably secure against known-key and chosen-key attacks (or to obtain an ideal cipher) remains ...
Chun Guo 0002, Dongdai Lin
openaire   +2 more sources

Novel Algorithm in Symmetric Encryption (NASE): Based on Feistel Cipher

Italian Conference on Theoretical Computer Science, 2017
Sir B Baker, A. Al-Hamami
semanticscholar   +1 more source

Full round impossible differentials for Feistel ciphers

Journal of Computer Virology and Hacking Techniques, 2023
Dmitry Zakharov, M. Pudovkina
openaire   +1 more source

Generic Attacks on Classical Feistel Ciphers with Internal Permutations

2017
In this chapter, generic attacks on Feistel networks with internal permutations, instead of Feistel networks with internal functions as designed originally are studied. As always in generic attacks, the internal permutations are supposed to be random.
Valerie Nachef, Jacques Patarin, Emmanuel Volte   +2 more
openaire   +1 more source

An ultralightweight RFID authentication protocol based on Feistel cipher structure

Secur. Commun. Networks, 2016
Bensalah Mustapha, M. Djeddou, Karim Drouiche   +2 more
semanticscholar   +1 more source