Benoît Cogliati, Simon Demarty

Multi-User Security Bound for Mixed Filter Permutators in the Random Oracle Model

Informatics

At Eurocrypt’16, Méaux et al. designed a construction for symmetric ciphers that can be efficiently evaluated with Fully Homomorphic Encryp...

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Christoph Dobraunig, Yosuke Todo

Preface to Volume 2026, Issue 1

Research

Review:

The submission, titled "Preface to Volume 2026, Issue 1," clearly positions itself as an introductory piece for an upcoming journal issue. Prefaces ar...

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Hongli Li, Changlun Li, Honggang Hu, Fengmei Liu

Indifferentiability of the Sponge Hash Family: New Attacks and the Optimal Construction

Informatics

The sponge construction is subject to an indifferentiability security bound of c/2 bits, where c denotes the capacity. For a given b-bit pe...

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Antoine Bak, Shibam Ghosh, Fukang Liu, Willi Meier, Jianqiang Ni, Léo Perrin

Cryptanalysis of TFHE-Friendly Cipher FRAST

Cryptography

FRAST is a TFHE-friendly stream cipher that was published at FSE 2025. The cipher is defined over Z16, and makes extensive use of negacycli...

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Aurel Pichollet-Mugnier, André Schrottenloher

Quantum Truncated Differential Attacks Using Convolutions

Cyber

This paper focuses on quantum key-recovery attacks on block ciphers. Previous works on quantum differential and truncated differential atta...

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Xiaoen Lin, Zhengrong Lu, Yantian Shen, Chongxu Ren, Hongbo Yu, Enming Dong, Wenhao Wu

Practical Preimage Attack on 5-Round Keccak[r=640, c=160]

Cyber

Internal differential cryptanalysis has recently yielded a series of new results in the preimage cryptanalysis of round-reduced Keccak. Whi...

Review:

This paper presents a significant advancement in the cryptanalysis of round-reduced Keccak, specifically focusing on preimage attacks. Building upon t...

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Eran Lambooij, Patrick Neumann

A Known-Plaintext Attack with Minimal Data Complexity on 25-Round CRAFT

Cryptography

We present the first known-plaintext attack on up to 25 rounds of the tweakable block cipher Craft. These attacks require only two known pl...

Review:

This paper presents a significant contribution to the cryptanalysis of the CRAFT tweakable block cipher, introducing the first known-plaintext attack...

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Shuo Peng, Akram Khalesi, Zahra Ahmadian, Hosein Hadipour, Jiahui He, Kai Hu, Zhongfeng Niu, Shahram Rasoolzadeh, Meiqin Wang

Cube and Integral Attacks on ChiLow-32

Cyber

The protection of executable code in embedded systems requires efficient mechanisms that ensure confidentiality and integrity. Belkheyar et...

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Cheng Che, Tian Tian

Differential-Linear Cryptanalysis and Cube Attacks on ChiLow

Cryptography

ChiLow is a family of tweakable block ciphers specifically designed for embedded code encryption, proposed at EUROCRYPT 2025. Its novel nes...

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This paper presents a timely and critical security analysis of ChiLow, a recently proposed family of tweakable block ciphers targeting embedded code e...

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Chengan Hou, Shuyi Wang, Meicheng Liu

Walsh Spectrum Puncturing Revisited: Toward Automated Linear Key Recovery Attacks

Informatics

Linear cryptanalysis has long served as a cornerstone in the security analysis of symmetric-key cryptanalytic primitives. Through more than...

Review:

This paper addresses a crucial and often overlooked challenge in symmetric-key cryptanalysis: the automation and optimization of the key recovery phas...

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