SYMMETRIC KEY ENCRYPTION -- CHAM: A Family of Lightweight Block Ciphers for Resource-Constrained Devices -- Improved Meet-in-the-Middle Attacks on Reduced Round Kuznyechik -- Security of Stateful Order-Preserving Encryption -- HOMOMORPHIC ENCRYPTION -- Cryptanalysis of Tran-Pang-Deng Verifiable Homomorphic Encryption -- Multi-Party (Leveled) Homomorphic Encryption on Identity-Based and Attribute-Based Settings -- Improved Key Generation Algorithm for Gentry's Fully Homomorphic Encryption Scheme -- SIDE CHANNEL ANALYSIS AND IMPLEMENTATION -- Novel Leakage against Realistic Masking and Shuffling Countermeasures - case study on PRINCE and SEED -- Detecting Similar Code Segments through Side Channel Leakage in Microcontrollers -- Secure Number Theoretic Transform and Speed Record for Ring-LWE Encryption on Embedded Processors -- BROADCAST ENCRYPTION -- Recipient Revocable Broadcast Encryption Schemes Without Random Oracles -- Recipient Revocable Broadcast Encryption with Dealership -- ELLIPTIC CURVE -- Solving 114-bit ECDLP for a Barreto-Naehrig Curve -- On the computational complexity of ECDLP for elliptic curves in various forms using index calculus -- SIGNATURE AND PROTOCOL -- Two Mutual Authentication Protocols Based on Zero-Knowledge Proofs For RFID Systems -- On New Zero-Knowledge Arguments for Attribute-Based Group Signatures from Lattices -- Security Analysis of Improved Cubic UOV Signature Schemes -- NETWORK AND SYSTEM SECURITY -- Evaluating the Impact of Juice Filming Charging Attack in Practical Environments -- Reading Network Packets as a Natural Language for Intrusion Detection -- Friend-safe Adversarial Examples in an Evasion Attack on a Deep Neural Network.

This book constitutes revised selected papers from the 20th International Conference on Information Security and Cryptology, ICISC 2017, held in Seoul, South Korea, in November/December 2017. The total of 20 papers presented in this volume were carefully reviewed and selected from 70 submissions. The papers were organized in topical sections named: symmetric key encryption; homomorphic encryption, side channel analysis and implementation; broadcast encryption; elliptic curve; signature and protocol; and network and system security. .