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Validity of Differential Characteristics of ARX Block Ciphers
IEEE Access, 2023 In this paper, we examine the validity of the differential characteristics of ARX-based block ciphers. Recently, Peyrin et al. showed that some of the differential characteristics of block ciphers, SKINNY and GIFT, in the literature are not valid ...
Dongyoung Roh
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Grover on Korean Block Ciphers
Applied Sciences, 2020 The Grover search algorithm reduces the security level of symmetric key cryptography with n-bit security level to O(2n/2). In order to evaluate the Grover search algorithm, the target block cipher should be efficiently implemented in quantum circuits ...
Kyoungbae Jang +5 more
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Provably Quantum-Secure Tweakable Block Ciphers [PDF]
IACR Transactions on Symmetric Cryptology, 2021 Recent results on quantum cryptanalysis show that some symmetric key schemes can be broken in polynomial time even if they are proven to be secure in the classical setting.
Akinori Hosoyamada, Tetsu Iwata
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Iterative Block Ciphers from Tweakable Block Ciphers with Long Tweaks
IACR Transactions on Symmetric Cryptology, 2020 We consider a problem of constructing a secure block cipher from a tweakable block cipher (TBC) with long tweaks. Given a TBC with n-bit blocks and Γn-bit tweaks for Γ ≥ 1, one of the constructions by Minematsu in DCC 2015 shows that a simple iteration ...
Ryota Nakamichi, Tetsu Iwata
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An automated model for differential meet in the middle attacks on AndRX ciphers [PDF]
Scientific ReportsIn recent years, research in block cipher cryptanalysis has been significantly influenced by the development of differential meet in the middle techniques.
Debasmita Chakraborty +3 more
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Identification on the structures of block ciphers using machine learning
网络与信息安全学报, 2023 Cryptographic identification is a critical aspect of cryptanalysis and a fundamental premise for key recovery.With the advancement of artificial intelligence, cryptanalysis based on machine learning has become increasingly mature, providing more ...
Ruiqi XIA, Manman LI, Shaozhen CHEN
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Efficient Implementation of PRESENT and GIFT on Quantum Computers
Applied Sciences, 2021 Grover search algorithm is the most representative quantum attack method that threatens the security of symmetric key cryptography. If the Grover search algorithm is applied to symmetric key cryptography, the security level of target symmetric key ...
Kyungbae Jang +5 more
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COUNTER MODE DEVELOPMENT FOR BLOCK CIPHER OPERATIONS [PDF]
مجلة جامعة الانبار للعلوم الصرفة, 2012 There are two basic types of symmetric cipher: block ciphers and stream ciphers. Block ciphers operate on blocks of plaintext and ciphertext—usually of 64 bits but sometimes longer. Stream ciphers operate on streams of plaintext and ciphertext one bit or
Ali M. Sagheer, Ahmed T. Suod
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Applied Sciences, 2022 With the advent of the Internet of Things (IoT) and cloud computing technologies, vast amounts of data are being created and communicated in IoT networks. Block ciphers are being used to protect these data from malicious attacks.
Hyunjun Kim +4 more
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IEEE Access, 2022 With the recent development of the Internet of Things (IoT), related device use is increasing rapidly. As a result, accessing and hijacking the devices is an increasing security threat.
Seonghyuck Lim +2 more
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