Packets Bidirectional Anonymous Identity Privacy Protection Scheme for Named Data Networking ⋆

Although Named Data Networking (NDN) architecture introduced security mechanisms and built the NDN basic service model, there are still privacy challenges such as consumer identity privacy, signer identity privacy, the disclosure of the ISP based on the identity privacy information, and the third party attack. Under the NDN basic service model, we analyze these privacy problems in detail and establish the NDN Privacy Protection Service Model in which identity privacy protection is defined and formalized description. In order to solve these privacy disclosure issues, this paper proposed bidirectional anonymous identity-based ring signcryption for multiple receivers (BA-IBMRSC) scheme. The proposed scheme not only uses ring signcryption algorithm to ensure the anonymity of publisher, but also utilizes lagrange interpolation function to achieve multiple receivers’ anonymity. Finally, the proof of security, public verifiability and bidirectional anonymity is provided in our scheme.