A Secure Protocol for Sharing Trust Data in Hybrid P2P Network
Huaiqing Lin, Yong-Hong Zhou · Journal of Networks · 2011
The trust data is critical to the trust model of P2P system. In this paper we present an efficient certificateless cryptography scheme and propose a protocol which provides the ability for sharing trust data securely. The protocol avoids the escrow problem identity-based cryptosystem and the secure delivery of private keys. The security of scheme is based on some underlying problems closely related to the Bilinear Diffie-Hellman Problem are computationally hard. It tolerates the Type I and Type II adversary. The proof of security is presented in the random oracle model. Through security discussion, we show that my secure protocol is extremely secure when encounter a variety of possible attacks.