Results 21 to 30 of about 15,909 (208)

A Security Analysis of Deoxys and its Internal Tweakable Block Ciphers

IACR Transactions on Symmetric Cryptology, 2017
In this article, we provide the first independent security analysis of Deoxys, a third-round authenticated encryption candidate of the CAESAR competition, and its internal tweakable block ciphers Deoxys-BC-256 and Deoxys-BC-384.
C. Cid, Tao Huang, Thomas Peyrin, Yu Sasaki, Ling Song   +4 more
semanticscholar   +5 more sources

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   +4 more sources

CTET+: A Beyond-Birthday-Bound Secure Tweakable Enciphering Scheme Using a Single Pseudorandom Permutation

IACR Transactions on Symmetric Cryptology, 2021
In this work, we propose a construction of 2-round tweakable substitutionpermutation networks using a single secret S-box. This construction is based on non-linear permutation layers using independent round keys, and achieves security beyond the birthday
Benoît Cogliati, Jordan Ethan, Virginie Lallemand, Byeonghak Lee, Jooyoung Lee, Marine Minier   +5 more
doaj   +1 more source

Tweakable Block Ciphers [PDF]

Journal of Cryptology, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liskov, Moses, Rivest, Ronald L, Wagner, David   +2 more
openaire   +4 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

KLEIN: A New Family of Lightweight Block Ciphers [PDF]

, 2010
Resource-efficient cryptographic primitives become fundamental for realizing both security and efficiency in embedded systems like RFID tags and sensor nodes.
A. Bogdanov, A. Bogdanov, A. Bogdanov, A. Juels, A. Moradi, A. Moradi, A. Satoh, B. Bilgin, B. Collard, C. Cannière De, C. Paar, C. Rolfes, C.H. Lim, C.H. Lim, D. Engels, D. Hong, E. Biham, F.X. Standaert, G. Leander, I. Dinur, J. Daemen, J. Daemen, J. Daemen, J. Daemen, J.Y. Cho, K. Ohkuma, L. Granboulan, L.R. Knudsen, L.R. Knudsen, M. Feldhofer, M. Healy, M. Matsui, M.J.O. Saarinen, O. Özen, P. Hamalainen, R. Könighofer, S. Mangard, S. Nikova, Y.W. Law, Z. Gong   +39 more
core   +19 more sources

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

Duel of the Titans: The Romulus and Remus Families of Lightweight AEAD Algorithms

IACR Transactions on Symmetric Cryptology, 2020
In this article, we propose two new families of very lightweight and efficient authenticated encryption with associated data (AEAD) modes, Romulus and Remus, that provide security beyond the birthday bound with respect to the block-length n.
Tetsu Iwata, Mustafa Khairallah, Kazuhiko Minematsu, Thomas Peyrin   +3 more
doaj   +1 more source

Optimization of Tree Modes for Parallel Hash Functions: A Case Study [PDF]

, 2017
This paper focuses on parallel hash functions based on tree modes of operation for an inner Variable-Input-Length function. This inner function can be either a single-block-length (SBL) and prefix-free MD hash function, or a sponge-based hash function ...
Atighehchi, Kevin, Rolland, Robert
core   +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