The two-volume set LNCS 12110 and 12111 constitutes the refereed proceedings of the 23rd IACR International Conference on the Practice and Theory of Public-Key Cryptography, PKC 2020, held in Edinburgh, UK, in May 2020. The 44 full papers presented were carefully reviewed and selected from 180 submissions. They are organized in topical sections such as: functional encryption; identity-based encryption; obfuscation and applications; encryption schemes; secure channels; basic primitives with special properties; proofs and arguments; lattice-based cryptography; isogeny-based cryptography; multiparty protocols; secure computation and related primitives; post-quantum primitives; and privacy-preserving schemes.

This book constitutes the proceedings of the 10th International Conference on Security and Cryptography, SCN 2016, held in Amalfi, Italy, in August/September 2016. The 30 papers presented in this volume were carefully reviewed and selected from 67 submissions. They are organized in topical sections on encryption; memory protection; multi-party computation; zero-knowledge proofs; efficient protocols; outsourcing computation; digital signatures; cryptanalysis; two-party computation; secret sharing; and obfuscation.