搜索结果: 1-15 共查到“密码学 ARX”相关记录18条 . 查询时间(0.156 秒)
Examining the Practical Side Channel Resilience of ARX-boxes
ARX side channel correlation attack
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2019/4/3
Implementations of ARX ciphers are hoped to have some intrinsic side channel resilience owing to the specific choice of cipher components: modular addition (A), rotation (R) and exclusive-or (X). Prev...
Differential Cryptanalysis in ARX Ciphers, Applications to LEA
Differential characteristics Nested Monte-Carlo Search ARX ciphers
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2018/11/9
In this paper we focus on differential cryptanalysis dedicated to a particular class of cryptographic algorithms, namely ARX ciphers. We propose a new algorithm inspired by the Nested Monte-Carlo Sear...
Differential cryptanalysis in ARX ciphers, Application to SPECK
Differential path Nested Monte-Carlo Search ARX ciphers
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2018/11/9
In this paper, we propose a new algorithm inspired by Nested to find a differential path in ARX ciphers. In order to enhance the decision process of our algorithm and to reduce the search space of our...
Efficient Side-Channel Protections of ARX Ciphers
Modular Addition Masking Side-channel Analysis
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2018/7/20
The current state of the art of Boolean masking for the modular addition operation in software has a very high performance overhead. Firstly, the instruction count is very high compared to a normal ad...
A Practical Fault Attack on ARX-like Ciphers with a Case Study on ChaCha20
ChaCha ARX cipher Laser
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2017/11/13
This paper presents the first practical fault attack on the ChaCha family of addition-rotation-XOR (ARX)-based stream ciphers. ChaCha has recently been deployed for speeding up and strengthening HTTPS...
Automatic Search of Bit-Based Division Property for ARX Ciphers and Word-Based Division Property
Automatic search Division property ARX
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2017/9/13
Division property is a generalized integral property proposed by Todo at Eurocrypt 2015. Previous tools for automatic searching are mainly based on the Mixed Integer Linear Programming (MILP) method a...
Efficient Differential Trail Searching Algorithm for ARX Block Ciphers
ARX structure Differential trails Automatic search algorithm
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2017/2/20
In this paper, we suggest an advanced method searching for differential trails of block cipher with ARX structure. We
use two techniques to optimize the automatic search algorithm of differential tra...
Design Strategies for ARX with Provable Bounds: SPARX and LAX (Full Version)
ARX block ciphers differential cryptanalysis
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2016/12/8
We present, for the first time, a general strategy for designing ARX symmetric-key primitives with provable resistance against single-trail differential and linear cryptanalysis. The latter has been a...
MILP-Aided Bit-Based Division Property for ARX-Based Block Cipher
MILP-aided bit-based division property HIGHT LEA
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2016/12/7
The huge time and memory complexities of utilizing bit-based division property, which was first presented by Todo and Morri at FSE 2016, bothered cryptographers for quite some time and it had been sol...
Arx: A Strongly Encrypted Database System
cryptographic protocols encrypted database
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2016/6/8
In recent years, encrypted databases have emerged as a promising direction that provides data confidentiality without sacrificing functionality: queries are executed on encrypted data. However, existi...
Automatic Search for the Best Trails in ARX:Application to Block Cipher Speck
Symmetric-key Cryptanalysis ARX
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2016/4/26
We propose the first adaptation of Matsui's algorithm for finding the best differential and linear trails to the class of ARX ciphers. It is based on a branch-and-bound search strategy, does not use a...
Automatic Differential Analysis of ARX Block Ciphers: with Application to SPECK and LEA
ARX SPECK LEA
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2016/3/1
In this paper, we focus on the automatic differential cryptanalysis of ARX block ciphers with respect to XOR-difference, and develop Mouha et al.'s framework of finding differential characteristics by...
Analysis of ARX Functions: Pseudo-linear Methods for Approximation, Differentials, and Evaluating Diffusion
ARX block ciphers hash functions
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2016/1/6
This paper explores the approximation of addition mod 2n
by addition mod 2w, where
1 ≤ w ≤ n, in ARX functions that use large words (e.g., 32-bit words or 64-bit words). Three main areas
are explor...
Rotational Cryptanalysis of ARX Revisited
rotational cryptanalysis Markov cipher Markov chain
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2016/1/4
Rotational cryptanalysis is a probabilistic attack applicable to
word oriented designs that use (almost) rotation-invariant constants. It is
believed that the success probability of rotational crypt...
Differential and Linear Cryptanalysis of ARX with Partitioning -- Application to FEAL and Chaskey
Differential cryptanalysis linear cryptanalysis ARX
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2015/12/22
In this work, we refine a partitioning technique recently
proposed by Biham and Carmeli to improve the linear cryptanalysis
of addition operations, and we propose an analogue improvement of
differe...