Results 71 to 80 of about 2,386,676 (394)
Modified forms of cipher block chaining
Computers & Security, 1991 A long-standing proposal for modifying cipher block chaining to prevent data expansion is shown to be insecure in some circumstances. Different modifications are then presented which appear secure.
Mitchell, Chris J, Varadharajan, Vijay
openaire +4 more sources
Characterization of fungal carbonyl sulfide hydrolase belonging to clade D β‐carbonic anhydrase
FEBS Letters, EarlyView.Here, we performed a functional analysis of the fungal enzymes belonging to clade D of the β‐class carbonic anhydrase family (β‐D‐CA). The β‐D‐CAs in the basidiomycete Gloeophyllum trabeum and the ascomycete Trichoderma harzianum showed very low activity in the hydration of CO2 but exhibited high activity in the hydrolysis of carbonyl sulfide (COS ...
Ryuka Iizuka +6 more
wiley +1 more source
Cryptanalysis of Reduced round SKINNY Block Cipher
IACR Cryptology ePrint Archive, 2018 SKINNY is a family of lightweight tweakable block ciphers designed to have the smallest hardware footprint. In this paper, we present zero-correlation linear approximations and the related-tweakey impossible differential characteristics for different ...
S. Sadeghi, Tahere Mohammadi, N. Bagheri
semanticscholar +1 more source
FEBS Letters, EarlyView.The glacier ice worm Mesenchytraeus solifugus survives year‐round at 0 °C. Its ATP6 subunit, which forms a regulatory component of the proton pore in mitochondrial ATP synthase, has a carboxy‐terminal extension not found in any other organism examined to date. Here, we show that fusion of this extension to the homologous AtpB protein in E. coli results
Truman Dunkley +2 more
wiley +1 more source
Construction of diffusion layers based on cipher structures
网络与信息安全学报, 2017 Taked diffusion layers of block cipher algorithms as the research object,lightweight diffusion layers were constructed by two cipher structures based on the characteristics of diffusion layers of lightweight block cipher algorithms,which were the ...
Peng-fei LI
doaj +3 more sources
Invariant Hopping Attacks on Block Ciphers [PDF]
arXiv, 2020 Block ciphers are in widespread use since the 1970s. Their iterated structure is prone to numerous round invariant attacks for example in Linear Cryptanalysis (LC). The next step is to look at non-linear polynomial invariants cf. Eurocrypt'95. Until recently, researchers have found extremely few such attacks, with some impossibility results. Eventually
arxiv
Survey and Benchmark of Block Ciphers for Wireless Sensor Networks [PDF]
, 2006 Cryptographic algorithms play an important role in the security architecture of wireless sensor networks (WSNs). Choosing the most storage- and energy-efficient block cipher is essential, due to the facts that these networks are meant to operate without ...
Doumen, J.M., Hartel, P.H., Law, Y.W.
core +3 more sources
Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions
FEBS Letters, EarlyView.This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten +10 more
wiley +1 more source
Linear Key-schedule’s Properties of the Smallpresent Block Cipher
Безопасность информационных технологий, 2013 SmallPresent block cipher was presented to investigate attacks on the PRESENT block cipher in details. In the paper the resistance to linear cryptanalysis of this cipher with arbitrary linear key-schedule is under consideration.
Georgy Igorevich Khoruzhenko +1 more
doaj
Improved Security Bound of (E/D)WCDM
IACR Transactions on Symmetric Cryptology, 2021 In CRYPTO’16, Cogliati and Seurin proposed a block cipher based nonce based MAC, called Encrypted Wegman-Carter with Davies-Meyer (EWCDM), that gives 2n/3 bit MAC security in the nonce respecting setting and n/2 bit security in the nonce misuse setting ...
Nilanjan Datta +2 more
doaj +1 more source