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Record Nr. |
UNINA9910591033603321 |
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Titolo |
Security and cryptography for networks : 13th International Conference, SCN 2022, Amalfi (SA), Italy, September 12-14, 2022, proceedings / / Clemente Galdi, Stanislaw Jarecki (editors) |
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Pubbl/distr/stampa |
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Cham, Switzerland : , : Springer, , [2022] |
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©2022 |
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ISBN |
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Descrizione fisica |
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1 online resource (795 pages) |
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Collana |
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Lecture notes in computer science ; ; 13409 |
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Disciplina |
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Soggetti |
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Data encryption (Computer science) |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Intro -- Preface -- Organization -- Invited Talks -- How to Do Cryptography Even When Cryptography Doesn't Exist -- From Galactic PCP Theory to Scaling Blockchains with ZK-STARKs -- Contents -- Ciphers, Cryptanalysis, Defenses -- Decoding McEliece with a Hint - Secret Goppa Key Parts Reveal Everything -- 1 Introduction -- 2 Preliminaries -- 3 Some Parts of a Secret Goppa Key Reveal Everything -- 3.1 Key Recovery from ALL Goppa Points -- 3.2 Goppa Polynomial Recovery from only tm+1 Goppa Points -- 3.3 Reconstruction of the Remaining Goppa Points -- 3.4 Full Key Recovery from tm+1 Goppa Points -- 4 Correcting Faulty Goppa Points -- References -- Cost-Asymmetric Memory Hard Password Hashing -- 1 Introduction -- 1.1 Our Contributions -- 1.2 Related Work -- 2 Background and Notations -- 3 Defender's Model -- 4 Attacker's Model -- 4.1 Assumptions of Economics Analysis -- 4.2 Cracking Process -- 4.3 Attacker's Utility -- 4.4 Stackelberg Game -- 5 Computing the Attacker's Optimal Strategy -- 5.1 Marginal Utility -- 5.2 A Superset of the Optimal Checking Sequence -- 5.3 Extension by Concatenation -- 5.4 Local Search in Two Directions -- 5.5 Optimality Test and Globally Optimal Checking Sequence -- 6 Defender's Optimal Strategy -- 7 Experiments -- 7.1 Experiment Setup -- 7.2 Experiment Analysis and Discussion -- 8 Conclusion -- References -- .26em plus .1em minus .1emMemory-Hard Puzzles in the Standard Model with Applications to Memory-Hard |
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Functions and Resource-Bounded Locally Decodable Codes -- 1 Introduction -- 1.1 Our Results -- 1.2 Prior Work -- 2 Technical Overview -- 2.1 Memory-Hard Languages -- 2.2 Memory-Hard Puzzles -- 2.3 Memory-Hard Functions from Memory-Hard Puzzles -- 2.4 Resource-Bounded LDCs from Cryptographic Puzzles -- References -- RAMus- A New Lightweight Block Cipher for RAM Encryption -- 1 Introduction -- 2 Preliminaries. |
3 The 2S-Strategy -- 3.1 Notations -- 3.2 The Round Function -- 4 The Description of RAMus -- 5 Design Rationale -- 6 Security Analysis of RAMus -- 6.1 Theoretical Proven Bound -- 6.2 SAT-Based Analysis -- 6.3 The Security of RAMus Against Integral Cryptanalysis and the Division Property Attacks -- 7 Performance -- References -- Higher-Order Masked Saber -- 1 Introduction -- 2 Preliminaries -- 2.1 Notation -- 2.2 Saber -- 2.3 uSaber -- 2.4 Fujisaki-Okamoto Transformation -- 2.5 Higher-Order Masking -- 3 Masking Saber -- 3.1 Arithmetic Operations -- 3.2 Compression -- 3.3 Masked Hashing -- 3.4 Masked Centered Binomial Sampler -- 3.5 Masked Comparison -- 4 Masking uSaber -- 5 Performance Evaluation -- 5.1 Performance Analysis of Comparison Algorithms for Saber -- 5.2 Performance Analysis for Masked Saber Decapsulation -- 5.3 Performance Analysis for Masked uSaber Decapsulation -- 5.4 Comparison with State-of-the-Art -- 6 Conclusions -- References -- Approximate Distance-Comparison-Preserving Symmetric Encryption -- 1 Introduction -- 1.1 Background and Motivation -- 1.2 Our Results -- 1.3 Discussion -- 1.4 Further Related Work -- 2 Preliminaries -- 3 Approximate Distance-Comparison-Preserving Functions and Their Properties -- 3.1 Notions Considered -- 3.2 Accuracy of Nearest Neighbors for -DCP Functions -- 3.3 Impossibility of Ideal Security -- 4 The Scale-and-Perturb (SAP) Scheme -- 4.1 Our Core -DCPE Scheme -- 4.2 Two Preprocessing Algorithms -- 5 Real-or-Replaced Indistinguishability for Neighboring Datasets -- 5.1 -RoR Security Bounds -- 6 Security Against Approximate Frequency-Finding Attacks -- 6.1 Window One-Wayness Security Notion -- 6.2 One-Wayness Bounds -- 6.3 Security Against Freq-Find Adversaries -- 7 Bit Security -- References -- Public Key Encryption -- Key-Policy ABE with Switchable Attributes -- 1 Introduction -- 1.1 Related Work. |
1.2 Contributions -- 2 Preliminaries -- 2.1 Dual Pairing Vector Spaces -- 2.2 Change of Basis -- 2.3 Particular Changes -- 3 Key-Policy ABE with Switchable Attributes -- 3.1 Policy Definition -- 3.2 Labeling of Access-Trees -- 3.3 Switchable Leaves and Attributes -- 3.4 Key-Policy Attribute-Based Encapsulation with Switchable Attributes -- 3.5 Security Notions -- 4 Our SA-KP-ABE Scheme -- 4.1 Description of Our KP-ABE with Switchable Attributes -- 4.2 Del-IND-Security of Our SA-KP-ABE for Encaps -- 4.3 Del-IND-Security of Our SA-KP-ABE for Encaps* -- 4.4 Distinct Indistinguishability Properties -- 4.5 Attribute-Indistinguishability -- 5 Application to Tracing -- 6 Conclusion -- References -- Mix-Nets from Re-randomizable and Replayable CCA-Secure Public-Key Encryption -- 1 Introduction -- 1.1 Our Contribution -- 1.2 Related Work -- 2 Preliminaries -- 3 Definitions -- 4 Mix-Net -- 5 A Concrete Mix-Net Protocol from RCCA-PKE -- 5.1 Split PKE -- 5.2 A Protocol for Verify-then-Decrypt for Verifiable Split PKE -- 5.3 Our Concrete Verifiable Split PKE -- 5.4 Putting All Together -- References -- New and Improved Constructions for Partially Equivocable Public Key Encryption -- 1 Introduction -- 1.1 Our Contributions -- 1.2 Technical Overview -- 2 Preliminaries -- 2.1 Reminders on Standard Assumptions -- 2.2 Non-Committing Encryption -- 3 PEPE Constructions -- 3.1 PEPE from LWE -- 3.2 PEPE from DDH -- 3.3 PEPE from Subgroup Decision -- References -- On Access Control |
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Encryption Without Sanitization -- 1 Introduction -- 2 Our Results -- 2.1 Modeling ACE Without Sanitization -- 2.2 Instantiating ACEnoS and VACE -- 2.3 Concurrent Work -- 2.4 Future Directions -- 3 Access Control Encryption Without Sanitization -- 4 Linear ACE Without Sanitizer from PKE -- 5 Compact ACE from Hybrid Encryption -- 6 Game-Specific Obfuscation -- 7 ACE with Ciphertext Verifiability. |
7.1 Ciphertext Verifiability -- 7.2 VACE from Game Specific Obfuscation -- 7.3 No Secret Write Rule of VACE -- References -- Watermarkable Public Key Encryption with Efficient Extraction Under Standard Assumptions -- 1 Introduction -- 1.1 Our Contribution -- 1.2 Technical Overview of Our Construction -- 1.3 Relations to Prior Work -- 2 Preliminaries -- 3 Watermarkable Public Key Encryption -- 4 Our Watermarkable PKE Scheme -- 5 Security Analysis -- 5.1 Encryption Correctness and IND-CPA Security -- 5.2 Extraction Correctness -- 5.3 Proving Unremovability and Unforgeability Properties -- References -- Authentication and Signatures -- A Provably Secure, Lightweight Protocol for Anonymous Authentication -- 1 Introduction -- 1.1 Our Contributions -- 1.2 Outline of the Paper -- 2 Model and Definitions -- 2.1 Preliminaries -- 2.2 Desynchronization Resilience -- 2.3 Mutual Authentication -- 2.4 Tag Anonymity -- 3 Protocol Description -- 4 Proofs of Security -- 4.1 Mutual Authentication -- 4.2 Desynchronization Resilience -- 4.3 Tag Anonymity -- References -- Anonymous Authenticated Communication -- 1 Introduction -- 1.1 Background and Motivation -- 1.2 Related Work -- 1.3 Contributions -- 1.4 Outline -- 2 Preliminaries -- 2.1 Notation -- 2.2 Constructive Cryptography -- 2.3 Anonymous and Authentic Resources -- 3 Achieving Anonymous Authenticity -- 3.1 Game-Based Security of Bilateral Signatures -- 3.2 Composable Security of Bilateral Signatures -- 4 Achieving De-anonymizable Authenticity -- 4.1 Game-Based Security of Partial Signatures -- 4.2 Composable Security of Partial Signatures -- 5 Achieving Receiver-Side Anonymous Authenticity -- 5.1 Game-Based Security of Ring Signatures -- 5.2 Composable Security of Ring Signatures -- 6 Concluding Remarks and Future Work -- References -- Credential Transparency System -- 1 Introduction. |
1.1 Definitional Framework for Diverse Credential Systems -- 2 Credential Transparency System (CTS) -- 2.1 Security Properties -- 3 CTS Construction -- 3.1 Overview of Our Construction -- 3.2 Construction Description -- 3.3 Simulation Algorithms -- 4 Security Proof -- 4.1 Intuition for the Proof of Soundness -- 4.2 Intuition for the Proof of Privacy -- References -- Cumulatively All-Lossy-But-One Trapdoor Functions from Standard Assumptions -- 1 Introduction -- 1.1 Our Contributions -- 1.2 Technical Overview -- 1.3 Related Work -- 2 Background -- 2.1 Cumulatively All-Lossy-But-One Trapdoor Functions -- 2.2 Lattices -- 2.3 Composite Residuosity -- 3 Cumulatively All-Lossy-But-One Trapdoor Functions -- 3.1 Relaxed CALBO-TDFs from LWE -- 3.2 CALBO-TDFs from DCR -- References -- On the Related-Key Attack Security of Authenticated Encryption Schemes -- 1 Introduction -- 1.1 Our Contribution -- 1.2 Related Work -- 2 Preliminaries -- 2.1 Notation -- 2.2 Primitives -- 2.3 Security Notions Against Related-Key Attacks -- 3 RKA Security Notions for Nonce-Based AEAD -- 3.1 Nonce Selection -- 3.2 RKA-Security Notions for AEAD Schemes -- 3.3 RKA-Security Against Nonce Misuse -- 3.4 RKA-Security Notions for Encryption -- 4 RKA Security of the N1, N2, and N3 Constructions -- 4.1 N1 - Instantiation of Encrypt-and-MAC -- 4.2 N2 - Instantiation of Encrypt-then-MAC -- 4.3 N3 - Instantiation of MAC-then-Encrypt -- 5 RKA Nonce-Misuse-Resistant AEAD -- References -- The State of the Union: Union-Only Signatures for Data Aggregation -- 1 Introduction -- 2 Syntax -- 3 Security Definitions -- |
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3.1 Notation -- 3.2 Unforgeability -- 3.3 History Hiding -- 4 A UOS Scheme -- 4.1 Initial Construction -- 4.2 Secure Variant from Groups of Unknown Order -- 4.3 Secure Variant from Lattices -- 4.4 Security Analysis -- 5 Performance -- 6 Conclusion -- References. |
Traceable Constant-Size Multi-authority Credentials. |
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