1.The 6th Research Institute of China Electronics Corporation，Beijing 10083,，China,； 2.School of Software Engineering，Anyang Normal University,，Anyang 455000,，China； 3.China Unicom Beijing Branch，Beijing 100052,，China
Abstract： Broadcasting encryption enables to establish a secrecy channel for distributing ciphered messages, the broadcaster adaptively chooses the set of authorized users before executing encryption operation, and only the authorized users could decrypt the received ciphered broadcast. This paper devises a public key broadcasting encryption construction with prime order asymmetric bilinear maps and proves it is static secure in the standard model. In the proposed construction, the overhead of ciphertexts and user secret keys are O(1), the public key overhead is O(N) in the total user number N. Compared with other related constructions, the proposal achieves static security based on non-interactive security assumption with the optimal overhead of ciphertexst and user secret keys.
Key words : broadcasting encryption,；standard model；static security,；overhead
