Results 21 to 30 of about 1,010,918 (180)

CRAFT: Lightweight Tweakable Block Cipher with Efficient Protection Against DFA Attacks [PDF]

IACR Transactions on Symmetric Cryptology, 2019
Traditionally, countermeasures against physical attacks are integrated into the implementation of cryptographic primitives after the algorithms have been designed for achieving a certain level of cryptanalytic security.
Christof Beierle, Gregor Leander, Amir Moradi, Shahram Rasoolzadeh   +3 more
doaj   +5 more sources

Cascading Four Round LRW1 is Beyond Birthday Bound Secure

IACR Transactions on Symmetric Cryptology, 2023
In CRYPTO’02, Liskov et al. introduced the concept of a tweakable block cipher, a novel symmetric key primitive with promising applications. They put forth two constructions for designing such tweakable block ciphers from conventional block ciphers ...
Nilanjan Datta, Shreya Dey, Avijit Dutta, Sougata Mandal   +3 more
doaj   +1 more source

Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers

IACR Transactions on Symmetric Cryptology, 2020
Tweakable block ciphers (TBCs) have proven highly useful to boost the security guarantees of authentication schemes. In 2017, Cogliati et al. proposed two MACs combining TBC and universal hash functions: a nonce-based MAC called NaT and a deterministic ...
Wonseok Choi, Akiko Inoue, Byeonghak Lee, Jooyoung Lee, Eik List, Kazuhiko Minematsu, Yusuke Naito   +6 more
doaj   +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, Mridul Nandi, Eik List, Sweta Mishra, Kazuhiko Minematsu   +4 more
core   +1 more source

1, 2, 3, Fork: Counter Mode Variants based on a Generalized Forkcipher

IACR Transactions on Symmetric Cryptology, 2021
A multi-forkcipher (MFC) is a generalization of the forkcipher (FC) primitive introduced by Andreeva et al. at ASIACRYPT’19. An MFC is a tweakable cipher that computes s output blocks for a single input block, with s arbitrary but fixed.
Elena Andreeva, Amit Singh Bhati, Bart Preneel, Damian Vizár   +3 more
doaj   +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

Triplex: an Efficient and One-Pass Leakage-Resistant Mode of Operation

Transactions on Cryptographic Hardware and Embedded Systems, 2022
This paper introduces and analyzes Triplex, a leakage-resistant mode of operation based on Tweakable Block Ciphers (TBCs) with 2n-bit tweaks. Triplex enjoys beyond-birthday ciphertext integrity in the presence of encryption and decryption leakage in a ...
Yaobin Shen, Thomas Peters, François-Xavier Standaert, Gaëtan Cassiers, Corentin Verhamme   +4 more
doaj   +3 more sources

Fixslicing AES-like Ciphers

Transactions on Cryptographic Hardware and Embedded Systems, 2020
The fixslicing implementation strategy was originally introduced as a new representation for the hardware-oriented GIFT block cipher to achieve very efficient software constant-time implementations.
Alexandre Adomnicai, Thomas Peyrin
doaj   +3 more sources

Tweakable TWINE: Building a Tweakable Block Cipher on Generalized Feistel Structure

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 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. While known dedicated TBC proposals are based on substitution-permutation network (SPN), GFS has not been used for building TBC.
Kosei Sakamoto, Kazuhiko Minematsu, Nao Shibata, Maki Shigeri, Hiroyasu Kubo, Yuki Funabiki, Andrey Bogdanov, Sumio Morioka, Takanori Isobe 0001   +8 more
openaire   +1 more source

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

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, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source