Results 31 to 40 of about 1,081,563 (177)
Tweakable HCTR: A BBB Secure Tweakable Enciphering Scheme [PDF]
, 2018 \textsf{HCTR}, proposed by Wang et al., is one of the most efficient candidates of tweakable enciphering schemes that turns an $n$-bit block cipher into a variable input length tweakable block cipher. Wang et al.
Avijit Dutta +3 more
core +2 more sources
IET Networks, EarlyView., 2023 We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh +4 more
wiley +1 more source
A Tweakable Enciphering Mode [PDF]
, 2003 We describe a block-cipher mode of operation, CMC, that turns an n-bit block cipher into a tweakable enciphering scheme that acts on strings of mn bits, where m>=2.
Shai Halevi, Phillip Rogaway
core +2 more sources
A General Construction of Tweakable Block Ciphers and Different Modes of Operations [PDF]
IEEE Transactions on Information Theory, 2006 This work builds on earlier work by Rogaway at Asiacrypt 2004 on tweakable block cipher (TBC) and modes of operations. Our first contribution is to generalize Rogaway's TBC construction by working over a ring and by the use of a masking sequence of functions. The ring can be instantiated as either GF or as .
Debrup Chakraborty, Palash Sarkar 0001
openaire +3 more sources
XHX - A Framework for Optimally Secure Tweakable Block Ciphers from Classical Block Ciphers and Universal Hashing [PDF]
, 2021 Tweakable block ciphers are important primitives for designing cryptographic schemes with high security. In the absence of a standardized tweakable block cipher, constructions built from classical block ciphers remain an interesting research topic in ...
Ashwin Jha +4 more
core +1 more source
Tweakable Ciphers: Constructions and Applications [PDF]
, 2015 Tweakable ciphers are a building block used to construct a variety of cryptographic algorithms. Typically, one proves (via a reduction) that a tweakable-cipher-based algorithm is about as secure as the underlying tweakable cipher.
Terashima, Robert Seth
core +1 more source
Linear Cryptanalysis: Key Schedules and Tweakable Block Ciphers
IACR Transactions on Symmetric Cryptology, 2017 This paper serves as a systematization of knowledge of linear cryptanalysis and provides novel insights in the areas of key schedule design and tweakable block ciphers. We examine in a step by step manner the linear hull theorem in a general and consistent setting.
Thorsten Kranz +2 more
openaire +4 more sources
Tweakable Enciphering Schemes Using Only the Encryption Function of a Block Cipher [PDF]
, 2009 A new construction of block cipher based tweakable enciphering schemes (TES) is described. The major improvement over existing TES is that the construction uses only the encryption function of the underlying block cipher.
Palash Sarkar
core +1 more source
Advanced Science, EarlyView.This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong +7 more
wiley +1 more source
Zero-Correlation Attacks on Tweakable Block Ciphers with Linear Tweakey Expansion [PDF]
IACR Transactions on Symmetric Cryptology, 2019 The design and analysis of dedicated tweakable block ciphers is a quite recent and very active research field that provides an ongoing stream of new insights. For instance, results of Kranz, Leander, and Wiemer from FSE 2017 show that the addition of a tweak using a linear tweak schedule does not introduce new linear characteristics.
Ralph Ankele +5 more
openaire +9 more sources