TY - GEN
T1 - Secure, selective group broadcast in vehicular networks using dynamic attribute based encryption
AU - Chen, Nanxi
AU - Gerla, Mario
AU - Huang, Dijiang
AU - Hong, Xiaoyan
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77956961737&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956961737&partnerID=8YFLogxK
U2 - 10.1109/MEDHOCNET.2010.5546877
DO - 10.1109/MEDHOCNET.2010.5546877
M3 - Conference contribution
AN - SCOPUS:77956961737
SN - 9781424484355
T3 - 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010
BT - 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010
T2 - 9th IFIP Annual Mediterranean Ad Hoc Networking Workshop, MED-HOC-NET 2010
Y2 - 23 June 2010 through 25 June 2010
ER -