Protecting Quantum Procrastinators with Signature Lifting: A Case Study in Cryptocurrencies

Web: https://iacr.org/news/item/20307

ePrint Report: Protecting Quantum Procrastinators with Signature Lifting: A Case Study in Cryptocurrencies

Or Sattath, Shai Wyborski

Current solutions to quantum vulnerabilities of widely used cryptographic schemes involve migrating users to post-quantum schemes before quantum attacks become feasible. This work deals with protecting quantum procrastinators: users that failed to migrate to post-quantum cryptography in time.
To address this problem in the context of digital signatures, we introduce a technique called signature lifting, that allows us to lift a deployed pre-quantum …

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