Efficient Group Signatures without Trapdoors 1st edition by Giuseppe Ateniese, Breno de Medeiros ISBN 3540205920 9783540205920

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Product details:

ISBN 10:       3540205920
ISBN 13: 978-3540205920
Author:         Giuseppe Ateniese, Breno de Medeiros
 

Efficient Group Signatures without Trapdoors 1st  Table of contents:

• Introduction

  • 1.1 Background on Group Signatures
  • 1.2 Importance of Efficient Group Signatures
  • 1.3 Trapdoor Functions in Cryptography: Why Avoid Them?
  • 1.4 Contributions of This Paper
  • 1.5 Structure of the Paper

• Preliminaries

  • 2.1 Basics of Cryptographic Signatures
  • 2.2 Overview of Group Signature Schemes
    • 2.2.1 Definition and Goals of Group Signatures
    • 2.2.2 Properties of Secure Group Signatures
  • 2.3 Trapdoor Functions in Cryptography
    • 2.3.1 What Are Trapdoor Functions?
    • 2.3.2 Why Some Group Signatures Use Trapdoors

• Design of the Group Signature Scheme

  • 3.1 High-Level Overview of the Scheme
  • 3.2 Key Generation and Setup
  • 3.3 Signing Algorithm
  • 3.4 Verification Algorithm
  • 3.5 Group Manager and Revocation Mechanism
  • 3.6 Security Model for Group Signatures Without Trapdoors
    • 3.6.1 Security Definitions and Assumptions
    • 3.6.2 Ideal Group Signature Model

• Security Analysis

  • 4.1 Informal Security Requirements
    • 4.1.1 Unforgeability
    • 4.1.2 Anonymity
    • 4.1.3 Traceability
    • 4.1.4 Non-repudiation
  • 4.2 Formal Security Proofs
    • 4.2.1 Proof of Anonymity
    • 4.2.2 Proof of Unforgeability
    • 4.2.3 Proof of Traceability
  • 4.3 Comparison to Existing Group Signature Schemes with Trapdoors

• Efficiency Considerations

  • 5.1 Computational Efficiency
    • 5.1.1 Time Complexity of Signing and Verification
    • 5.1.2 Impact on Cryptographic Operations (e.g., pairings, modular arithmetic)
  • 5.2 Communication Efficiency
    • 5.2.1 Signature Size Analysis
    • 5.2.2 Overhead in Group Signature Operations
  • 5.3 Practical Implementation Considerations
    • 5.3.1 Trade-offs Between Security and Performance
    • 5.3.2 Comparison to Other Group Signature Schemes in Practice

• Applications of Group Signatures Without Trapdoors

  • 6.1 Privacy-Preserving Authentication Systems
  • 6.2 Secure Voting Protocols
  • 6.3 Blockchain and Distributed Ledger Technologies
  • 6.4 Privacy-Enhancing Technologies in Cryptocurrencies
  • 6.5 Legal and Regulatory Use Cases
    • 6.5.1 Regulatory Compliance with Anonymized Group Signatures
    • 6.5.2 Legal Use Cases in Decentralized Systems

• Experimental Results

  • 7.1 Performance Evaluation in Real-World Scenarios
    • 7.1.1 Benchmarks of Signing/Verifying Times
    • 7.1.2 Scalability for Large Groups
  • 7.2 Security Evaluation with Simulated Attacks
    • 7.2.1 Success of Forgery Attempts
    • 7.2.2 Evaluation of Traceability Mechanism
  • 7.3 Comparison with Existing Systems
    • 7.3.1 Empirical Comparison with Trapdoor-Based Group Signatures
    • 7.3.2 Trade-offs Between Security and Efficiency

• Challenges and Open Problems

  • 8.1 Challenges in Scalability for Large Groups
  • 8.2 Enhancing Revocation Mechanisms Without Trapdoors
  • 8.3 Balancing Security with Efficiency for Low-Resource Devices
  • 8.4 Future Directions in Group Signature Research

• Conclusion

  • 9.1 Summary of Contributions
  • 9.2 Implications for the Field of Cryptography
  • 9.3 Final Thoughts on Group Signatures Without Trapdoors

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