Public-Key Cryptography - PKC 2021

The 52 papers included in these proceedings were carefully reviewed and selected from 156 submissions. They focus on all aspects of public-key cryptography, covering theory, implementations and applications. This year, post-quantum cryptography, PQC constructions and cryptanalysis received special attention.

Post-Quantum Constructions and Cryptanalysis. - QCCA-Secure Generic Key Encapsulation Mechanism with Tighter Security in the Quantum Random Oracle Model. - An Alternative Approach for SIDH Arithmetic. - The Convergence of Slide-type Reductions. - On the Success Probability of Solving Unique SVP via BKZ. - Two-round n-out-of-n and Multi-Signatures and Trapdoor Commitment from Lattice. - Isogeny-based key compression without pairings. - Analysis of Multivariate Encryption Schemes: Application to Dob. - On the Integer Polynomial Learning with Errors Problem. - Shorter Lattice-Based Zero-Knowledge Proofs via One-Time Commitments. - Multivariate Public Key Cryptosystem from Sidon Spaces. - Banquet: Short and Fast Signatures from AES. - Cryptographic Primitives and Schemes. - Improving Revocation for Group Signature with Redactable Signature. - Bootstrapping fully homomorphic encryption over the integers in less than one second. - Group Signatures with User-Controlled and Sequential Linkability. - Impossibility on Tamper-Resilient Cryptography with Uniqueness Properties. - Rate-1 Key-Dependent Message Security via Reusable Homomorphic Extractor against Correlated-Source Attacks. - Two-Party Adaptor Signatures From Identification Schemes. - Compact Zero-Knowledge Proofs for Threshold ECDSA with Trustless Setup. - Universal Proxy Re-Encryption. - Master-Key KDM-Secure ABE via Predicate Encoding. - Exact Lattice Sampling from Non-Gaussian Distributions. - Efficient Adaptively-Secure IB-KEMs and VRFs via Near-Collision Resistance. - Subversion-Resilient Public Key Encryption with Practical Watchdogs. - Non-Interactive CCA2-Secure Threshold Cryptosystems: Achieving Adaptive Security in the Standard Model Without Pairings. - Updatable Signatures and Message Authentication Codes. - Multi-Client Functional Encryption for Separable Functions.