Cryptology and Network Security

This book constitutes the refereed proceedings of the 18th International Conference on Cryptology and Network Security, CANS 2019, held in Fuzhou, China, in October 2019.The 21 full papers and 8 short papers were carefully reviewed and selected from 55 submissions. The papers focus on topics such as homomorphic encryption; SIKE and Hash; lattice and post-quantum cryptography; searchable encryption; blockchains, cloud security; secret sharing and interval test, LWE; encryption, data aggregation, and revocation; and signature, ML, payment, and factorization.