Publicly Verifiable Deletion from Minimal Assumptions
Abstract
We present a general compiler to add the publicly verifiable deletion property for various cryptographic primitives including public key encryption, attribute-based encryption, and quantum fully homomorphic encryption. Our compiler only uses one-way functions, or more generally hard quantum planted problems for NP, which are implied by one-way functions. It relies on minimal assumptions and enables us to add the publicly verifiable deletion property with no additional assumption for the above primitives. Previously, such a compiler needs additional assumptions such as injective trapdoor one-way functions or pseudorandom group actions [Bartusek-Khurana-Poremba, ePrint:2023/370]. Technically, we upgrade an existing compiler for privately verifiable deletion [Bartusek-Khurana, ePrint:2022/1178] to achieve publicly verifiable deletion by using digital signatures.
Cite
@article{arxiv.2304.07062,
title = {Publicly Verifiable Deletion from Minimal Assumptions},
author = {Fuyuki Kitagawa and Ryo Nishimaki and Takashi Yamakawa},
journal= {arXiv preprint arXiv:2304.07062},
year = {2023}
}
Comments
15 pages