TY - BOOK AU - Conti,Mauro AU - Stevens,Marc AU - Krenn,Stephan ED - International Conference on Cryptology and Network Security TI - Cryptology and network security: 20th international conference, CANS 2021, Vienna, Austria, December 13-15, 2021 : proceedings T2 - Lecture notes in computer science SN - 9783030925482 AV - QA76.9.A25 I58 2021 U1 - 005.8/24 23 PY - 2021///] CY - Cham PB - Springer KW - Data encryption (Computer science) KW - Congresses KW - Computer networks KW - Security measures KW - Chiffrement (Informatique) KW - Congrès KW - Réseaux d'ordinateurs KW - Sécurité KW - Mesures KW - fast KW - Congress KW - proceedings (reports) KW - aat KW - Conference papers and proceedings KW - lcgft KW - Actes de congrès KW - rvmgf N1 - Includes author index; Encryption -- Cross-Domain Attribute-Based Access Control Encryption -- Grain-128AEADv2: Strengthening the Initialization Against Key Reconstruction -- Partition Oracles from Weak Key Forgeries -- Practical Privacy-Preserving Face Identification based on FunctionHiding Functional Encryption -- The Matrix Reloaded: Multiplication Strategies in FrodoKEM -- Signatures -- BlindOR: An Effcient Lattice-Based Blind Signature Scheme from OR-Proofs -- Effcient Threshold-Optimal ECDSA -- GMMT: A Revocable Group Merkle Multi-Tree Signature Scheme -- Issuer-Hiding Attribute-Based Credentials -- Report and Trace Ring Signatures -- Selectively Linkable Group Signatures-Stronger Security and Preserved Verifiability -- Cryptographic Schemes and Protocols -- FO-like Combiners and Hybrid Post-Quantum Cryptography -- Linear-time oblivious permutations for SPDZ -- On the Higher-bit Version of Approximate Inhomogeneous Short Integer Solution Problem -- Practical Continuously Non-Malleable Randomness Encoders in the Random Oracle Model -- Attacks and Counter-Measures -- Countermeasures against Backdoor Attacks towards Malware Detectors -- Free By Design: On the Feasibility Of Free-Riding Attacks Against Zero-Rated Services -- Function-private Conditional Disclosure of Secrets and Multi-evaluation Threshold Distributed Point Functions -- How Distance-bounding can Detect Internet Traffc Hijacking -- SoK: Secure Memory Allocation -- Toward Learning Robust Detectors from Imbalanced Datasets Leveraging Weighted Adversarial Training -- Towards Quantum Large-Scale Password Guessing on Real-World Distributions -- Attestation and Verification -- Anonymous Transactions with Revocation and Auditing in Hyperledger Fabric -- Attestation Waves: Platform Trust via Remote Power Analysis -- How (not) to Achieve both Coercion Resistance and Cast as Intended Verifiability in Remote eVoting -- Subversion-Resistant Quasi-Adaptive NIZK and Applications to Modular zk-SNARKs -- THC: Practical and Cost-Effective Verification of Delegated Computation -- Tiramisu: Black-Box Simulation Extractable NIZKs in the Updatable CRS Model N2 - This book constitutes the refereed proceedings of the 20th International Conference on Cryptology and Network Security, CANS 2021, which was held during December 13-15, 2021. The conference was originally planned to take place in Vienna, Austria, and changed to an online event due to the COVID-19 pandemic. The 25 full and 3 short papers presented in these proceedings were carefully reviewed and selected from 85 submissions. They were organized in topical sections as follows: Encryption; signatures; cryptographic schemes and protocols; attacks and counter-measures; and attestation and verification UR - https://link.springer.com/10.1007/978-3-030-92548-2 ER -