Blockchain-Envisioned Post-Quantum Secure Sanitizable Signature for Audit Logs Management

Concetti Chiave

Proposing a post-quantum secure multivariate-based SSS, Mul-SAN, for efficient audit log management with accountability and privacy.

Sintesi

The content discusses the importance of audit logs in tracking system events, introduces the Mul-SAN scheme for secure audit log management, explores the use of Blockchain technology, and provides an efficiency analysis. It covers topics such as motivation for SSS, conventional digital signatures, proposed design of Mul-SAN, security analysis, application in Blockchain-enabled audit logs, and efficiency comparison with other schemes.

Statistiche

"Mul-SAN is very efficient and only requires computing field multiplications and additions over a finite field for its implementation."
"Our proposed design provides unforgeability, privacy, immutability, signer accountability and sanitizer accountability under the assumption that the MQ problem is NP-hard."
"Mul-SAN belongs to the family of MPKCs."

Citazioni

"Blockchain offers several key advantages in integrity auditing."
"MPKC-based schemes are swift and can be efficiently employed on memory-constraint devices."
"Our proposed design is post-quantum secure."

Approfondimenti chiave tratti da

Blockchain-Envisioned Post-Quantum Secure Sanitizable Signature for Audit Logs Management

by Vikas Srivas... alle arxiv.org 03-26-2024

https://arxiv.org/pdf/2312.16322.pdf

Domande più approfondite

How can Blockchain enhance transparency in auditing processes beyond traditional methods?

Blockchain technology offers several advantages that can significantly enhance transparency in auditing processes compared to traditional methods.

Immutability: Once data is recorded on a blockchain, it cannot be altered or deleted, ensuring the integrity of audit logs. This immutability feature provides a tamper-proof record of all transactions and activities.

Decentralization: Blockchains are decentralized networks where multiple nodes validate and record transactions independently. This eliminates the need for a central authority, reducing the risk of manipulation or fraud.

Transparency: All participants in a blockchain network have access to the same information, promoting transparency and accountability across the system. Any changes made to audit logs are visible to all parties involved.

Smart Contracts: Smart contracts on blockchains can automate auditing processes based on predefined rules and conditions. These self-executing contracts ensure compliance with set standards without human intervention.

Auditing Efficiency: Auditors can access real-time data stored on a blockchain, streamlining the auditing process and enabling quicker identification of discrepancies or irregularities.

Overall, by leveraging these features, Blockchain technology enhances trustworthiness and reliability in auditing processes by providing an immutable, transparent, decentralized platform for recording and verifying transactions.

What are potential drawbacks or criticisms of using a post-quantum secure SSS like Mul-SAN?

While post-quantum secure sanitizable signature schemes (SSS) like Mul-SAN offer enhanced security against quantum attacks compared to traditional cryptographic schemes, they also come with certain drawbacks:

Complexity:

Post-quantum cryptography often involves more complex mathematical algorithms than classical cryptography.
Implementation and deployment may require specialized knowledge and resources which could increase operational costs.

Interoperability:

Compatibility issues may arise when integrating post-quantum secure SSS into existing systems designed for classical cryptographic protocols.

3 .Performance Impact:
- The computational overhead associated with post-quantum algorithms might lead to slower processing speeds compared to conventional cryptographic schemes.
4 .Standardization Challenges
- As post-quantum cryptography is still evolving rapidly,
standardization efforts are ongoing which could result
in compatibility issues between different implementations
5 .Resource Intensive
- Post-Quantum Cryptography typically requires more
computational resources making it less efficient for
resource-constrained devices

How might advancements in multivariate cryptography impact other areas of cybersecurity?

Advancements in multivariate cryptography have the potential to impact various areas within cybersecurity:
1 .Enhanced Security
- Multivariate cryptosystems provide an alternative approach
towards achieving robust security against emerging threats
such as quantum computing
2 .Post Quantum Resilience
- Multivariate cryptosystems offer resistance against attacks from large-scale quantum computers due their inherent complexity
3 .Efficiency Improvements
- Advancements in multivariate cryptography may lead
improved efficiency through optimized algorithms
4 .Application Diversity
Multivariate Cryptography has applications not only
digital signatures but also encryption key exchange etc.
5 .Research Opportunities
Further research into multivariant crypto will likely open up new avenues for exploration leading potentially groundbreaking discoveries.