Results 81 to 90 of about 1,483,203 (289)

Perfect nonlinear S-boxes [PDF]

, 2007
A perfect nonlinear S-box is a substitution transformation with evenly distributed directional derivatives. Since the method of differential cryptanalysis presented by E. Biham and A. Shamir makes use of nonbalanced directional derivatives, the perfect nonlinear S-boxes are immune to this attack.
openaire   +1 more source

Finding an Effective Metric Used for Bijective S-Box Generation by Genetic Algorithms [PDF]

, 2014
In cryptography, S-box is a basic component of symmetric key algorithms which performs nonlinear substitution. S-boxes need to be highly nonlinear, so that the cipher can resist linear cryptanalysis. The main criteria for cryptographically strong (n × n)
Baicheva, T., Bikov, D., Borissov, Y., Lazarova, L., Stojanova, A., Stoykova, L., Zhelezova, S.   +6 more
core  

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Smashing the Implementation Records of AES S-box

Transactions on Cryptographic Hardware and Embedded Systems, 2018
Canright S-box has been known as the most compact S-box design since its introduction back in CHES’05. Boyar-Peralta proposed logic-minimization heuristics that could reduce the gate count of Canright S-box from 120 gates to 113 gates, however synthesis ...
Arash Reyhani-Masoleh, Mostafa Taha, Doaa Ashmawy   +2 more
doaj   +1 more source

Linear Redundancy in S-Boxes [PDF]

, 2003
This paper reports the discovery of linear redundancy in the S-boxes of many ciphers recently proposed for standardisation (including Rijndael, the new AES). We introduce a new method to efficiently detect affine equivalence of Boolean functions, and hence we study the variety of equivalence classes existing in random and published S-boxes.
Fuller, Joanne, Millan, William
openaire   +1 more source

Pembelajaran Enkripsi Metode Word Auto Key Encryption [PDF]

, 2014
Kriptografi Metode WAKE merupakan salah satu metode yang telah digunakan secara komersial. WAKE merupakan singkatan dari Word Auto Key Encryption. Metode ini ditemukan oleh David Wheeler pada tahun 1993 dan merupakan salah satu algoritma stream cipher ...
eddy, E. (Eddy), Pahlevi, M. R. (Muhammad)   +1 more
core  

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

S-Boxهای پویای وابسته به کلید سبک وزن مبتنی بر ابرخم بیضوی برای دستگاه¬های اینترنت اشیا

علوم رایانش و فناوری اطلاعات, 2021
Security is one of the main issues in Internet of Things (IoT). Encryption plays a curtail role in making these systems secure. Substitution Box (S-Box) has an effective impact in block encryption methods. Due to the restricted resource capacities of IoT
پروانه اصغری, سید حمید حاج سید جوادی   +1 more
doaj  

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source