Results 21 to 30 of about 1,200 (255)

Automatic method for searching impossible differentials and zero-correlation linear hulls of ARX block ciphers

open access: yes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
doaj   +3 more sources

Towards Low Energy Stream Ciphers

open access: yesIACR 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
doaj   +1 more source

Simplified Modeling of MITM Attacks for Block Ciphers: New (Quantum) Attacks

open access: yesIACR 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
doaj   +1 more source

STUDY OF THE CRYPTOGRAPHIC STRENGTH OF THE S-BOX OBTAINED ON THE BASIS OF EXPONENTIATION MODULO

open access: yesScientific 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
doaj   +1 more source

The LED Block Cipher [PDF]

open access: yes, 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
openaire   +2 more sources

Elastic Block Ciphers

open access: yesIACR Cryptol. ePrint Arch., 2004
We introduce a new concept of elastic block ciphers, symmetric-key encryption algorithms that for a variable size input do not expand the plaintext, (i.e., do not require plaintext padding), while maintaining the diffusion property of traditional block ciphers and adjusting their computational load proportionally to the size increase.
Cook, Debra L.   +2 more
openaire   +3 more sources

Hybrid Code Lifting on Space-Hard Block Ciphers

open access: yesIACR Transactions on Symmetric Cryptology, 2022
There is a high demand for whitebox cryptography from the practical use of encryption in untrusted environments. It has been actively discussed for two decades since Chow et al. presented the whitebox implementation of DES and AES. The goal is to resist
Yosuke Todo, Takanori Isobe
doaj   +1 more source

A Traceable Block Cipher [PDF]

open access: yes, 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
openaire   +1 more source

Improved Correlation Power Analysis on Bitslice Block Ciphers

open access: yesIEEE Access, 2022
Bitslice block ciphers have the advantage of allowing parallel computation using bitwise logical operations, and Boolean masking can be applied efficiently.
Jaeseung Han   +4 more
doaj   +1 more source

Automatic method for searching integral distinguishers of ARX block ciphers

open access: yesTongxin xuebao, 2018
Firstly,based on three subsets division property propagation technique,the propagation function of the K-set and L-set of ARX block ciphers was constructed respectively.All vectors in L-set affected the propagation of K-set when propagate through xored ...
Ya HAN, Mingsheng WANG
doaj   +2 more sources

Home - About - Disclaimer - Privacy