Paper 2021/394
Quantum Encryption with Certified Deletion: Public Key and Attribute-Based
Ryo Nishimaki and Takashi Yamakawa
Abstract
Broadbent and Islam (TCC '20) proposed a quantum cryptographic primitive called quantum encryption with certified deletion. In this primitive, a receiver in possession of a quantum ciphertext can generate a classical certificate that the encrypted message is deleted. Though they proved that their construction is information theoretically secure, a drawback is that the construction is limited to the setting of one-time symmetric key encryption (SKE) where a sender and receiver have to share a common key in advance and the key can be used only once. In this paper, we construct a (reusable-key) public key encryption (PKE) and attribute-based encryption (ABE) with certified deletion. Our PKE with certified deletion is constructed assuming the existence of IND-CPA secure PKE, and our ABE with certified deletion is constructed assuming the existence of indistinguishability obfuscation and one-way function.
Note: (May. 17 2021) This paper was subsumed by https://eprint.iacr.org/2021/617.
Metadata
- Available format(s)
-
PDF
- Category
- Foundations
- Publication info
- Preprint. MINOR revision.
- Keywords
- certified deletionpublic key encryptionattribute-based encryption
- Contact author(s)
-
ryo nishimaki zk @ hco ntt co jp
takashi yamakawa ga @ hco ntt co jp
ryo nishimaki @ gmail com - History
- 2021-05-17: revised
- 2021-03-27: received
- See all versions
- Short URL
- https://ia.cr/2021/394
- License
-
CC BY
BibTeX
@misc{cryptoeprint:2021/394,
author = {Ryo Nishimaki and Takashi Yamakawa},
title = {Quantum Encryption with Certified Deletion: Public Key and Attribute-Based},
howpublished = {Cryptology {ePrint} Archive, Paper 2021/394},
year = {2021},
url = {https://eprint.iacr.org/2021/394}
}
