Cryptography -- Security Analysis of Improved EDHOC Protocol -- A Survey on Identity-based Blind Signature -- Do Not Rely on Clock Randomization: A Side-Channel Attack on a Protected Hardware Implementation of AES -- Post-Quantum and UC-secure Oblivious Transfer from SPHF with Grey Zone -- A New Class of Trapdoor Verifiable Delay Functions -- Practical homomorphic evaluation of block-cipher-based hash functions with applications -- Towards a maturity model for crypto-agility assessment -- Machine Learning -- Reducing the Cost of Machine Learning Differential Attacks Using Bit Selection and a Partial ML-Distinguisher -- Data-driven Evaluation of Intrusion Detectors : a Methodological Framework -- CHIEFS: Corneal-Specular Highlights Imaging for Enhancing Fake-Face Spotter -- Cybercrime and Privacy -- Where is The Python Interpreter? -- Automating Device Fingerprinting Attacks in 4G and5G NSA Mobile Networks -- Malicious Human Behaviour in Information System Security: Contribution to a Threat Model for Event Detection Algorithms -- A Taxonomy and Gap-analysis in Digital Privacy Education -- Differentially Private Friends Recommendation -- Physical-layer Security -- Underwater Confidential Communications in JANUS -- Defense Models for Data Recovery in Industrial Control Systems -- SCADA Radio Blackbox Reverse Engineering -- Blockchain -- Finding Unchecked Low-Level Calls with Zero False Positives and Negatives in Ethereum Smart Contracts -- Decentralized Vision-Based Byzantine Agent Detection in Multi-Robot Systems with IOTA Smart Contracts -- Money Transfer on Transaction Signature-based Ledger -- A Decentralized Mnemonic Backup System for Non-Custodial Cryptocurrency Wallets -- IoT and Security Protocols -- If-This-Then-Allow-That (to Phone Home): A Trigger-Based NetworkPolicy Enforcement Framework for Smart Homes -- Reducing Trust Assumptions with OSCORE, RISC-V, and Layer 2 One-Time Passwords -- Towards Characterizing IoT Software Update Practices -- Two-Layer Architecture for Signature-Based Attacks Detection over Encrypted Network Traffic -- Short Papers -- A Decision-Support Tool for Experimentation on Zero-Hour Phishing Detection -- Deep-Learning-Based Vulnerability Detection in Binary Executables -- Robustness of Affine and Extended Affine Equivalent Surjective S-Box(es) against Differential Cryptanalysis.

This book constitutes the refereed proceedings of the 15th International Symposium on Foundations and Practice of Security, FPS 2022, held in Ottawa, ON, Canada, during December 12-14, 2022. The 26 regular and 3 short papers presented in this book were carefully reviewed and selected from 83 submissions. The papers have been organized in the following topical sections: Cryptography; Machine Learning; Cybercrime and Privacy; Physical-layer Security; Blockchain; IoT and Security Protocols; and Short Papers.