Secure, selective group broadcast in vehicular networks using dynamic attribute based encryption

Nanxi Chen, Mario Gerla, Dijiang Huang, Xiaoyan Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Scopus citations

Abstract

Ciphertext-policy attribute-based encryption (CP-ABE) provides an encrypted access control mechanism for broadcasting messages. Basically, a sender encrypts a message with an access control policy tree which is logically composed of attributes; receivers are able to decrypt the message when their attributes satisfy the policy tree. A user's attributes stand for the properties that he currently owns. A user should keep his attributes up-to-date. However, this is not easy in CP-ABE because whenever one attribute changes, the entire private key, which is based on all the attributes, must be changed. In this paper, we introduce fading function, which renders attributes "dynamic" and allows users to update each attribute separately. We study how choosing fading rate for fading function affects the efficiency and security.We also compare our design with CP-ABE and find our scheme performs significantly better under certain circumstance.

Original languageEnglish (US)
Title of host publication9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010
DOIs
Publication statusPublished - 2010
Event9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010 - Juan Les Pins, France
Duration: Jun 23 2010Jun 25 2010

Other

Other9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010
CountryFrance
CityJuan Les Pins
Period6/23/106/25/10

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ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Chen, N., Gerla, M., Huang, D., & Hong, X. (2010). Secure, selective group broadcast in vehicular networks using dynamic attribute based encryption. In 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010 [5546877] https://doi.org/10.1109/MEDHOCNET.2010.5546877