@misc{cryptoeprint:2009:118, author = {Jin Li and Kui Ren and Kwangjo Kim}, title = {A2BE: Accountable Attribute-Based Encryption for Abuse Free Access Control}, howpublished = {Cryptology ePrint Archive, Report 2009/118}, year = {2009}, url = {http://eprint.iacr.org/2009/118}, }