Results 41 to 50 of about 718 (207)
Tweakable TWINE: Building a tweakable block cipher on generalized feistel structure [PDF]
, 2019 Tweakable block cipher (TBC) is an extension of conventional block cipher. We study how to build a TBC based on generalized Feistel structure (GFS), a classical block cipher construction.
Minematsu, Kazuhiko +8 more
core +1 more source
Security Establishment in ADS-B by Format-Preserving Encryption and Blockchain Schemes
Applied 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
Differential attacks on generalized Feistel schemes [PDF]
, 2013 International audienceWhile generic attacks on classical Feistel schemes and unbalanced Feistel schemes have been studied a lot, generic attacks on several generalized Feistel schemes like type-1, type-2 and type-3 and alternating Feistel schemes, as ...
Valérie Nachef +5 more
core +1 more source
Type-3 Feistel Network of The 128-bits Block Size Improved Blowfish Cryptographic Encryption [PDF]
Engineering 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
Feistel Ciphers with L 2-Decorrelation [PDF]
, 1999 Recently, we showed how to strengthen block ciphers by decorrelation techniques. In particular, we proposed two practical block ciphers, one based on the GF(2n)-arithmetics, the other based on the x mod p mod 2n primitive with a prime p = 2n(1 + δ). In this paper we show how to achieve similar decorrelation with a prime p = 2n(1 - δ).
openaire +1 more source
Implementation of modified Feistel block cipher for OTP generation using Verilog HDL [PDF]
, 2018 In this paper we modified feistel block cipher to generate OTP (One Time Password) and implement it using Verilog HDL. To perform any online transaction using debit or credit cards, an OTP is sent to the client via SMS for his mobile number registered at
K. Revathi +6 more
core +1 more source
Dynamic Rounds Chaotic Block Cipher Based on Keyword Abstract Extraction
Entropy, 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
On the Feistel Counterpart of the Boomerang Connectivity Table
IACR Transactions on Symmetric Cryptology, 2020 At Eurocrypt 2018, Cid et al. introduced the Boomerang Connectivity Table (BCT), a tool to compute the probability of the middle round of a boomerang distinguisher from the description of the cipher’s Sbox(es). Their new table and the following works led
Hamid Boukerrou +4 more
doaj +1 more source
Dianzi Jishu Yingyong, 2021 NBC is a family of block ciphers using Generalized Feistel structure, designed by Xu Hong et al. There are three block and key sizes,i.e.,128/128, 128/256 and 256/256. A 16-bit Sbox is involved in the cipher as the non-linear component.
Yang Jiangshuai +3 more
doaj +1 more source
Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.Abstract Lunar magnetic anomalies are abundant near the south pole, where several moderate‐strength anomalies spatially overlap permanently shadowed regions (PSRs). This environment provides a unique setting to assess how crustal magnetic fields and topography regulate plasma–surface interactions and, in turn, the stability and distribution of surface ...
Jan Deca, Lon Hood, Shuai Li
wiley +1 more source