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Multi-receiver Identity-Based Key Encapsulation Mechanism (mIB-KEM) allows a sender to distribute messages for a set of receivers using the receiver's identity as a public key. ... We describe the definition of multi-receiver Identity-Based Key Encapsulation Mechanism (mIB-KEM)  as below. ... PRELIMINARIES Multi-receiver Identity-Based Key Encapsulation Mechanism Encapsulate(S, PP) takes a set S of identities and the public parameters PP as input, and outputs a pair (Hdr, K) where Hdr is ...doi:10.1145/1368310.1368366 dblp:conf/ccs/ParkKL08 fatcat:nc6yz327avfqbligo352yhtpmi
As a consequence, service providers currently deploy insecure alternatives that threaten users' privacy at a large scale. ... Mobile messengers commonly offer a feature that allows users to discover their existing contacts on the platform based on the phone numbers stored in their address book. ... Acknowledgments This work was co-funded by the DFG as part of project E4 within the CRC 1119 CROSSING and project A. 1 Acknowledgments. ...doi:10.26083/tuprints-00019295 fatcat:mcrri3mvh5a3jois3hzpolx3ae