Machine Learning Security -- LOM: Lightweight classifier for obfuscation methods -- A Method for Collecting Vehicular Network Data for Enhanced Anomaly Detection -- Unsupervised Driver Behavior Profiling leveraging Recurrent Neural Networks -- On the robustness of intrusion detection systems for vehicles against adversarial attacks -- A Framework for Generating Evasion Attacks for Machine Learning based Network Intrusion Detection Systems -- Echo-Guard : Acoustic-based Anomaly Detection System for Smart Manufacturing Environments -- Research on improvement of anomaly detection performance in industrial control systems -- Cryptography -- Quantum Cryptanalysis Landscape of Shor's Algorithm for Elliptic Curve Discrete Logarithm Problem -- Anonymous IBE from PEKS : A Generic Construction -- Secure Computation of Shared Secrets and Its Applications -- Pattern Matching over Encrypted Data with a Short Ciphertext -- Efficient adaptation of TFHE for high end-to-end throughput -- AnyTRNG: Generic, High-throughput, Low-area True Random Number Generator based on Synchronous Edge Sampling -- Hardware Security -- Masked Implementation of PIPO Block Cipher on 8-bit AVR Microcontrollers -- Parallel Implementation of PIPO Block Cipher on 32-bit RISC-V Processor -- No Silver Bullet: Optimized Montgomery Multiplication on Various 64-bit ARM Platforms -- ARMed Frodo: FrodoKEM on 64-bit ARMv8 Processors -- Quantitative Analysis on Attack Capacity in Meltdown-type Attacks -- Application Security -- Adaptive Network Security Service Orchestraction based on SDN/NFV -- A General Framework for Matching Pattern Hiding in Deep Packet Inspection -- A Privacy-Preserving Payment Model for EV Charging -- Measuring Healthcare Data Breaches -- BadASLR: Exceptional cases of ASLR aiding Exploitation.

This book constitutes the revised selected papers from the 22nd International Conference on Information Security Applications, WISA 2021, which took place on Jeju Island, South Korea, during August 2021. The 23 papers included in this book were carefully reviewed and selected from 66 submissions. They were organized in topical sections as follows: machine learning security; cryptography; hardware security; and application security.