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Paper 2021/1660
Identity-Based Matchmaking Encryption without Random Oracles
Danilo Francati and Alessio Guidi and Luigi Russo and Daniele Venturi
Abstract
Identity-based matchmaking encryption (IB-ME) is a generalization of identity-based encryption where the sender and the receiver can both specify a target identity: if both the chosen target identities match the one of the other party, the plaintext is revealed, and otherwise the sender’s identity, the target identity, and the plaintext remain hidden. Previous work showed how to construct IB-ME in the random oracle model. We give the first construction in the plain model, based on standard assumptions over bilinear groups.
Metadata
- Available format(s)
-
PDF
- Category
- Public-key cryptography
- Publication info
- Published elsewhere. INDOCRYPT 2021
- DOI
- 10.1007/978-3-030-92518-5_19
- Keywords
- Identity-based encryptionmatchmaking encryptionplain model
- Contact author(s)
-
russol @ eurecom fr
dfrancati @ cs au dk
venturi @ di uniroma1 it - History
- 2021-12-17: received
- Short URL
- https://ia.cr/2021/1660
- License
-
CC BY
