The volume constitutes the proceedings of the 23rd International Conference on Cryptology, INDOCRYPT 2022, which was held during December 11–14, 2022. The conference took place in Kolkata, India.The 31 full papers included in this book were carefully reviewed and selected from 74 submissions. They were organized in topical sections as follows: symmetric key cryptology;protocols and implementation;cryptanalysis;boolean functions;quantum cryptography and cryptanalysis;post quantum cryptography

This book constitutes the refereed proceedings of the 4th International Conference on Codes, Cryptology and Information Security, C2SI 2023, held in Rabat, Morocco, during May 29–31, 2023. The 21 full papers included in this book were carefully reviewed and selected from 62 submissions. They were organized in topical sections as follows: Invited Papers, Cryptography, Information Security, Discrete Mathematics, Coding Theory.

The four-volume proceedings LNCS 13791, 13792, 13793, and 13794 constitute the proceedings of the 28th International Conference on the Theory and Application of Cryptology and Information Security, ASIACRYPT 2022, held in Taipei, Taiwan, during December 5-9, 2022. The total of 98 full papers presented in these proceedings was carefully reviewed and selected from 364 submissions. The papers were organized in topical sections as follows: Part I: Award papers; functional and witness encryption; symmetric key cryptanalysis; multiparty computation; real world protocols; and blockchains and cryptocurrencies. Part II: Isogeny based cryptography; homomorphic encryption; NIZK and SNARKs; non interactive zero knowledge; and symmetric cryptography. Part III: Practical cryptography; advanced encryption; zero knowledge; quantum algorithms; lattice cryptoanalysis. Part IV: Signatures; commitments; theory; cryptoanalysis; and quantum cryptography.

This book constitutes the refereed proceedings of the 8th International Conference on Progress in Cryptology, LATINCRYPT 2023, held in Quito, Ecuador, in October 2023. The 19 full papers included in this book were carefully reviewed and selected from 59 submissions. They were organized in topical sections as follows: Symmetric-Key Cryptography; Multi-Party Computation; Isogeny-Based Cryptography; Discrete Logarithm Problem; Cryptographic Protocols; Real-World Cryptography; and Zero-Knowledge Proofs.

The four-volume set LNCS 14369 until 14372 constitutes the refereed proceedings of the 21st International Conference on Theory of Cryptography, TCC 2023, held in Taipei, Taiwan, in November/December 2023. The total of 68 full papers presented in the proceedings was carefully reviewed and selected from 168 submissions. They focus on topics such as proofs and outsourcing; theoretical foundations; multi-party computation; encryption; secret sharing, PIR and memory checking; anonymity, surveillance and tampering; lower bounds; IOPs and succinctness; lattices; quantum cryptography; Byzantine agreement, consensus and composability.