Distributed Broadcast Encryption from Bilinear Groups

ePrint Report: Distributed Broadcast Encryption from Bilinear Groups

Dimitris Kolonelos, Giulio Malavolta, Hoeteck Wee

Distributed broadcast encryption (DBE) [Boneh and Zhandry - CRYPTO 2014] improves on the traditional notion of broadcast encryption by eliminating the key-escrow problem: In a DBE system, users generate their own secret keys without the help of a trusted party. Then anyone can broadcast a message for a subset S of the users, in such a way that the resulting ciphertext size is sublinear in (and, …

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