Signature: TVES: Threshold Verifiably Encrypted Signature and Its Applications -- Compact Accountable Ring Signatures in the Plain Model -- Universally Composable Key-Insulated and Privacy-Preserving Signature Scheme with Publicly Derived Public Key -- Compact Ring Signatures with Post-Quantum Security in Standard Model -- Secure Multi-Party SM2 Signature based on SPDZ Protocol -- Blockchain: Epoch: Enabling Path Concealing Payment Channel Hubs with Optimal Path Encryption -- A General Federated Learning Scheme with Blockchain on non-IID Data -- A Blockchain-Based Personal Health Record Sharing Scheme with Security and Privacy Preservation -- Cryptography primitive: General Constructions of Fuzzy Extractors for Continuous Sources -- Geometry-based Garbled Circuits Relying Solely on One Evaluation Algorithm under Standard Assumption -- Full Domain Functional Bootstrapping with Least Significant Bit Encoding -- Public key cryptography: PFE: Linear Active Security, Double-Shuffle Proofs, and LowComplexity Communication -- CCA-secure Identity-Based Matchmaking Encryption from Standard Assumptions.-Post-Quantum Public-key Authenticated Searchable Encryption with Forward Security: General Construction, and Applications -- Public Key Authenticated Encryption with Keyword Search Improved: Strong Security Model and Multi-keyword Construction -- Identity-Based Proxy Re-encryption Based on SM9 -- Security and Privacy: SecCDS: Secure Crowdsensing Data Sharing Scheme Supporting Aggressive Query -- An Improved Method for Evaluating Secret Variables and Its Application to WAGE -- Exploring Emotion Trends in Product Reviews: A Multi-modal Analysis with Malicious Comment Filtering and User Privacy Protection -- XPORAM: A Practical Multi-Client ORAM against Malicious Adversaries -- A Multi-scene Webpage Fingerprinting Method Based on Multi-head Attention and Data Enhancement -- A Lightweight Access Control Scheme Supporting Policy Hidden based on Path Bloom Filter -- MFL-RAT: Multi-class Few-shot Learning Method For Encrypted RAT Traffic Detection.

The two-volume set LNCS 14526 and 14527 constitutes the refereed proceedings of the 19th International Conference on Information Security and Cryptology, Inscrypt 2023, held in Hangzhou, China, during December 9-10, 2023. The 38 full papers and 7 short papers presented in these proceedings were carefully reviewed and selected from 152 submissions. The papers have been organized in the following topical sections: Part I: Signature; blockchain; cryptography primitive; public key cryptography; security and privacy; Part II: System security; cryptography engineering; cryptanalysis; short papers, posters.