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.

Identity-Based Matchmaking Encryption Without Random Oracles / Francati, D.; Guidi, A.; Russo, L.; Venturi, D.. - 13143:(2021), pp. 415-435. (Intervento presentato al convegno 22nd International Conference on Cryptology in India, INDOCRYPT 2021 tenutosi a ind) [10.1007/978-3-030-92518-5_19].

Identity-Based Matchmaking Encryption Without Random Oracles

Venturi D.
2021

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.
2021
22nd International Conference on Cryptology in India, INDOCRYPT 2021
Identity-based encryption; Matchmaking encryption; Plain model
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Identity-Based Matchmaking Encryption Without Random Oracles / Francati, D.; Guidi, A.; Russo, L.; Venturi, D.. - 13143:(2021), pp. 415-435. (Intervento presentato al convegno 22nd International Conference on Cryptology in India, INDOCRYPT 2021 tenutosi a ind) [10.1007/978-3-030-92518-5_19].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1673679
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