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Weakening Assumptions for Publicly-Verifiable Deletion

19 April 2023
James Bartusek
Dakshita Khurana
Giulio Malavolta
Alexander Poremba
Michael Walter
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Abstract

We develop a simple compiler that generically adds publicly-verifiable deletion to a variety of cryptosystems. Our compiler only makes use of one-way functions (or one-way state generators, if we allow the public verification key to be quantum). Previously, similar compilers either relied on the use of indistinguishability obfuscation (Bartusek et. al., ePrint:2023/265) or almost-regular one-way functions (Bartusek, Khurana and Poremba, arXiv:2303.08676).

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