Results 31 to 40 of about 449 (128)
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 +2 more sources
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
HCTR+: An Optimally Secure TBC-Based Accordion Mode
IACR Transactions on Symmetric CryptologyThe design of tweakable wide-block ciphers has advanced significantly over the past two decades. This evolution began with the wide-block cipher by Naor and Reingold.
Nilanjan Datta +4 more
doaj +1 more source
Clustering Related-Tweak Characteristics: Application to MANTIS-6
IACR Transactions on Symmetric Cryptology, 2018 The TWEAKEY/STK construction is an increasingly popular approach for designing tweakable block ciphers that notably uses a linear tweakey schedule. Several recent attacks have analyzed the implications of this approach for differential cryptanalysis and ...
Maria Eichlseder, Daniel Kales
doaj +1 more source
Practical Key-Recovery Attack on MANTIS5
IACR Transactions on Symmetric Cryptology, 2017 MANTIS is a lightweight tweakable block cipher published at CRYPTO 2016. In addition to the full 14-round version, MANTIS7, the designers also propose an aggressive 10-round version, MANTIS5.
Christoph Dobraunig +3 more
doaj +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 +1 more source
INT-RUP Secure Lightweight Parallel AE Modes
IACR Transactions on Symmetric Cryptology, 2020 Owing to the growing demand for lightweight cryptographic solutions, NIST has initiated a standardization process for lightweight cryptographic algorithms.
Avik Chakraborti +5 more
doaj +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 +8 more sources
ZCZ – Achieving n-bit SPRP Security with a Minimal Number of Tweakable-Block-Cipher Calls [PDF]
, 2018 Strong Pseudo-random Permutations (SPRPs) are important for various applications. In general, it is desirable to base an SPRP on a single-keyed primitive for minimizing the implementation costs.
Mridul Nandi, Eik List, Ritam Bhaumik
core +1 more source
Context-Committing Authenticated Encryptions Using Tweakable Stream Cipher
IEEE AccessCommitting security of authenticated encryption schemes is an emerging area and an active field of research and is highly motivated by real-world scenarios.
Donghoon Chang, Munawar Hasan
doaj +1 more source