Ling Cheung, Calvin C. Newport. Provably Secure Ciphertext Policy ABE. IACR Cryptology ePrint Archive, 2007:183, 2007. [doi]
@article{CheungN07-1, title = {Provably Secure Ciphertext Policy ABE}, author = {Ling Cheung and Calvin C. Newport}, year = {2007}, url = {http://eprint.iacr.org/2007/183}, researchr = {https://researchr.org/publication/CheungN07-1}, cites = {0}, citedby = {0}, journal = {IACR Cryptology ePrint Archive}, volume = {2007}, pages = {183}, }