Publicly Verifiable Deletion from Minimal Assumptions

• URL: http://arxiv.org/abs/2304.07062v1
• Date: Fri, 14 Apr 2023 11:34:43 GMT
• Title: Publicly Verifiable Deletion from Minimal Assumptions
• Authors: Fuyuki Kitagawa, Ryo Nishimaki, Takashi Yamakawa
• Abstract summary: We present a general compiler to add the publicly verifiable deletion property for various cryptographic primitives. Our compiler only uses one-way functions, or more generally hard quantum planted problems for NP.
• Score: 13.664682865991253
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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