Verifiable Timed Proxy Signatures and Multi-signatures

Date

2025-01-01

Author

Özden, Duygu
Yayla, Oğuz

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Verifiable timed commitments serve as cryptographic tools that enable the binding of information to specific time intervals. By inte- grating these commitments into signature schemes, secure and tamper- evident digital signatures can be generated, ensuring the integrity of time-sensitive mechanisms. This article delves into the concept of ver- ifiable timed commitments and explores their efficient applications in digital signature constructions. Specifically, it focuses on two important signature schemes: proxy signatures and multi-signatures. The idea of the timed proxy signature is to enable the delegation of signing rights for a specified period, allowing designated entities to sign messages on behalf of the original signer. On the other hand, multi-signatures allow multi- ple parties to collectively generate a single signature, ensuring enhanced security and accountability. The article presents an in-depth analysis of the underlying mechanisms, discussing their properties, strengths, and computational complexity. Through this exploration, the article aims to shed light on the potential of verifiable timed commitments and inspire further research in this evolving field of cryptography.

Subject Keywords

Timed commitment, timed signature, multi-signature, proxy signature

URI

https://eprint.iacr.org/2023/1107
https://hdl.handle.net/11511/117602

Collections

Graduate School of Applied Mathematics, Article