Selected Areas in Cryptography – SAC 2025: 32nd International Conference, Toronto, ON, Canada, August 13–15, 2025, Revised Selected Papers(16207 Lecture Notes in Computer Science)

This book contains revised selected papers from the 32nd International Conference on Selected Areas in Cryptography, SAC 2025, held in Toronto, ON, Canada, in August 2025. The 29 full papers were presented in this volume were carefully reviewed and selected from 109 submissions. They were organized in the following topical sections as follows: Cryptanalysis of Symmetric Schemes and Primitives; Impossible Differential Attacks; Symmetric Design Strategies and Security; Efficient Implementations; Public Key Encryption; Attacks on Public-Key Schemes; Isogeny-Based Cryptography; Fully Homomorphic Encryption; and Side-Channel Analysis and Fault Attacks.

Table of Contents:
​Cryptanalysis of Lightweight Ciphers.- More Balanced Polynomials: Cube Attacks on 810- and 825-Round Trivium with Practical Complexities.- A Closer Look at the S-box: Deeper Analysis of Round-Reduced ASCON-HASH.- Improving the Rectangle Attack on GIFT-64.- Side-Channel Attacks and Countermeasures.- Mask Compression: High-Order Masking on Memory-Constrained Devices.- Not so Difficult in the End: Breaking the Lookup Table-based Affine Masking Scheme.- Threshold Implementations with Non-Uniform Inputs.- Post-Quantum Constructions.- SMAUG: Pushing Lattice-based Key Encapsulation Mechanisms to the Limits.- A Post-Quantum Round-Optimal Oblivious PRF from Isogenies.- Traceable Ring Signatures from Group Actions: Logarithmic, Flexible, and Quantum Resistant.-Symmetric cryptography and fault attacks.- The Random Fault Model.- Probabilistic Related-Key Statistical Saturation Cryptanalysis.- Compactly Committing Authenticated Encryption Using Encryptment and Tweakable Block Cipher.- Post-Quantum Analysis and Implementations.- Bit Security Analysis of Lattice-Based KEMs under Plaintext-Checking Attacks.- Quantum Cryptanalysis of OTR and OPP: Attacks on Confidentiality, and Key-Recovery.- Fast and Efficient Hardware Implementation of HQC.- Homomorphic encryption.- On the Precision Loss in Approximate Homomorphic Encryption.- Secure Function Extensions to Additively Homomorphic Cryptosystems.- Public-Key Cryptography.- Generalized Implicit Factorization Problem.- Differential Cryptanalysis.- CLAASP: a Cryptographic Library for the Automated Analysis of Symmetric Primitives.- Parallel SAT Framework to Find Clustering of Differential Characteristics and Its Applications.- Deep Learning-Based Rotational-XOR Distinguishers for AND-RX Block Ciphers: Evaluations on Simeck and Simon.