Results 21 to 30 of about 1,075,260 (289)
Optimally Secure Tweakable Block Ciphers with a Large Tweak from n-bit Block Ciphers
IACR Transactions on Symmetric Cryptology, 2023 We consider the design of a tweakable block cipher from a block cipher whose inputs and outputs are of size n bits. The main goal is to achieve 2n security with a large tweak (i.e., more than n bits). Previously, Mennink at FSE’15 and Wang et al.
Yaobin Shen, François-Xavier Standaert
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Known and chosen key differential distinguishers for block ciphers [PDF]
, 2011 In this paper we investigate the differential properties of block ciphers in hash function modes of operation. First we show the impact of differential trails for block ciphers on collision attacks for various hash function constructions based on block ...
Sokołowski, Przemysław +7 more
core +1 more source
RAFA: Redundancies-assisted Algebraic Fault Analysis and its implementation on SPN block ciphers
Transactions on Cryptographic Hardware and Embedded Systems, 2023 Algebraic Fault Analysis (AFA) is a cryptanalysis for block ciphers proposed by Courtois et al., which incorporates algebraic cryptanalysis to overcome the complexity of manual analysis within the context of Differential Fault Analysis (DFA).
Zehong (Zephyr) Qiu, Fan Zhang
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网络与信息安全学报, 2017 Firstly,the differences and linear masks propagation equations of ARX ciphers were established.Secondly,the propagation equations were solved by SAT solver and judged valid or not.Finally,differences and linear masks were traversed to search impossible ...
Ya HAN
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Towards Low Energy Stream Ciphers
IACR Transactions on Symmetric Cryptology, 2018 Energy optimization is an important design aspect of lightweight cryptography. Since low energy ciphers drain less battery, they are invaluable components of devices that operate on a tight energy budget such as handheld devices or RFID tags.
Subhadeep Banik +7 more
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Simplified Modeling of MITM Attacks for Block Ciphers: New (Quantum) Attacks
IACR Transactions on Symmetric Cryptology, 2023 The meet-in-the-middle (MITM) technique has led to many key-recovery attacks on block ciphers and preimage attacks on hash functions. Nowadays, cryptographers use automatic tools that reduce the search of MITM attacks to an optimization problem.
André Schrottenloher, Marc Stevens
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STUDY OF THE CRYPTOGRAPHIC STRENGTH OF THE S-BOX OBTAINED ON THE BASIS OF EXPONENTIATION MODULO
Scientific Journal of Astana IT University, 2022 This article presents one of the main transformations of symmetric block ciphers used to protect confidential information, a new method for obtaining a non-linear S block, and an analysis of the results obtained.
Ardabek Khompysh +3 more
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, 2011 We present a new block cipher LED. While dedicated to compact hardware implementation, and offering the smallest silicon footprint among comparable block ciphers, the cipher has been designed to simultaneously tackle three additional goals. First, we explore the role of an ultra-light (in fact non-existent) key schedule.
Jian Guo 0001 +3 more
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Mathematical aspects of the design and security of block ciphers [PDF]
, 2020 Block ciphers constitute a major part of modern symmetric cryptography. A mathematical analysis is necessary to ensure the security of the cipher. In this thesis, I develop several new contributions for the analysis of block ciphers.
Kölsch, Lukas (gnd: 1225141133)
core +1 more source
A Traceable Block Cipher [PDF]
, 2003 In this paper we propose a new symmetric block cipher with the following paradoxical traceability properties: it is computationally easy to derive many equivalent secret keys providing distinct descriptions of the same instance of the block cipher. But it is computationally difficult, given one or even up to k equivalent keys, to recover the so called ...
Olivier Billet, Henri Gilbert
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