Revocable Identity-Based Encryption Revisited: Security Model and Construction

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Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
In ACM CCS 2008, the researcher proposed an elegant way of achieving an Identity-Based Encryption (IBE) with efficient revocation, which the authors call Revocable IBE (RIBE). One of the significant benefits of their construction is scalability, where the overhead of the trusted authority is logarithmically increased in the number of users, whereas that in the boneh-franklin naive revocation way is linearly increased. All the subsequent RIBE schemes follow the researcher's security model and the syntax.
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