Results 1 to 10 of about 1,125 (140)
A new distinguishing attack on reduced round ChaCha permutation [PDF]
Scientific Reports, 2023 This work concentrates on differential-linear distinguishing attacks on the prominent ARX-based permutation ChaCha. Here, we significantly improve the 7-round differential-linear distinguisher for ChaCha permutation by introducing a new path of linear ...
Chandan Dey, Santanu Sarkar
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Cryptanalysis of Reduced Round ChaCha – New Attack & Deeper Analysis
IACR Transactions on Symmetric Cryptology, 2023 In this paper we present several analyses on ChaCha, a software stream cipher. First, we consider a divide-and-conquer approach on the secret key bits by partitioning them.
Sabyasachi Dey +2 more
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Migraciones, 2022 La desprotección de las trabajadoras del hogar ha sido una cuestión reiteradamente postergada por la legislación española y a su vez es consecuencia de la informalidad en el sector doméstico, que obedece a factores económicos, políticos y culturales.
Gabriela Poblet
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Differential-Linear Cryptanalysis of Reduced Round ChaCha
IACR Transactions on Symmetric CryptologyChaCha is a well-known stream cipher that has been used in many network protocols and software. In this paper, we study the security of reduced round ChaCha. First, by considering the differential-linear hull effect, we improve the correlation of a four-
Zhichao Xu, Hong Xu, Lin Tan, Wenfeng Qi
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Higher-Order Differential-Linear Cryptanalysis of ChaCha Stream Cipher
IEEE AccessThis paper studies the advanced methodologies of differential cryptanalysis with a particular emphasis on higher-order differentials and higher-order differential-linear cryptanalysis, along with their application to the ChaCha stream cipher.
Nasratullah Ghafoori, Atsuko Miyaji
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Accelerating the convergence of Newton's method for the Yang-Baxter like matrix equation [PDF]
HeliyonThis article explores the application of exact line search and successive over-relaxation techniques to enhance the convergence of Newton method in solving the Yang-Baxter matrix equation for nontrivial numerical solutions. Moreover, the normwise, mixed,
Chacha Stephen Chacha
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A Proposal Video Encryption Using Light Stream Algorithm [PDF]
Engineering and Technology Journal, 2021 Video encrypting is one technique to protect digital videos, it used to avoid unwanted interference and viewing of the transmitted videos. In this paper, a new selective video cryptography algorithm is suggested using light stream algorithm.
Ataa R. Alawi, Nidaa F. Hassan
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Letras, 2023 El presente artículo discute tres publicaciones recientes acerca de la filiación lingüística del chacha, lengua atribuida a las etnias del área geográfica Chachapoyas, en la parte sur del departamento de Amazonas, Perú.
Michaela Ziemendorff +2 more
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Boosting Differential-Linear Cryptanalysis of ChaCha7 with MILP
IACR Transactions on Symmetric Cryptology, 2023 In this paper, we present an improved differential-linear cryptanalysis of the ChaCha stream cipher. Our main contributions are new differential-linear distinguishers that we were able to build thanks to the following improvements: a) we considered a ...
Emanuele Bellini +4 more
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Rotational analysis of ChaCha permutation
Advances in Mathematics of Communications, 2023 We show that the underlying permutation of ChaCha20 stream cipher does not behave as a random permutation for up to 17 rounds with respect to rotational cryptanalysis. In particular, we derive a lower and an upper bound for the rotational probability through ChaCha quarter round, we show how to extend the bound to a full round and then to the full ...
Barbero, Stefano +2 more
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