Progress in Cryptology – INDOCRYPT 2025: 26th International Conference on Cryptology in India, Bhubaneshwar, India, December 14–17, 2025, Proceedings

This book constitutes the refereed proceedings of the 26th International Conference on Cryptology in India, held in Bhubaneshwar, India, during December 14-17, 2025. The 19 full papers presented in this volume were carefully reviewed and selected from 83 submissions. They are organized into these topical sections: Classical Algorithms;  Symmetric-Key Cryptography; Zero-Knowledge and Interactive Proofs; Isogeny-based Cryptography; Multivariate and Lattice-based Cryptography;  Quantum Cryptography; and  Secret Sharing and Cloud Security.