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Non-Malleable Code in the Split-State Model.

Divesh Aggarwal¹, Marshall Ball², Maciej Obremski³

¹Department of Computer Science and Center for Quantum Technologies, National University of Singapore, Singapore 119077, Singapore.

Entropy (Basel, Switzerland)

|August 26, 2022

Summary

Non-malleable codes offer a relaxed alternative to error correction, especially when tampering is unavoidable. This survey explores their constructions and uses in split-state models, where data parts are altered independently.

Keywords:

NMC compilers non-malleable codes split-state NMC strong NMC super NMC

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Area of Science:

Cryptography and Information Security
Theoretical Computer Science

Background:

Non-malleable codes provide a security guarantee against certain tampering attacks, relaxing traditional error correction/detection requirements.
These codes are crucial in scenarios where complete error correction or detection is infeasible.
The split-state tampering model, where parts of a codeword are independently modified, is a significant area of study.

Purpose of the Study:

To survey existing constructions of non-malleable codes specifically designed for the split-state model.
To review the various applications of non-malleable codes within this tampering model.
To provide a comprehensive overview of the current research landscape in this specialized area.

Main Methods:

Review of cryptographic literature and research papers on non-malleable codes.
Categorization of different code constructions based on their properties and security guarantees.
Analysis of applications demonstrating the utility of these codes in split-state scenarios.

Main Results:

Identification of diverse constructions for non-malleable codes tailored to the split-state model.
Demonstration of the effectiveness of these codes in practical and theoretical applications.
Highlighting the trade-offs and capabilities of different non-malleable coding schemes.

Conclusions:

Non-malleable codes are a vital tool for robust data security under split-state tampering.
The surveyed constructions offer practical solutions for various cryptographic challenges.
Further research can explore new constructions and applications to enhance security guarantees.