A ploy to ensure the security distribution of the key and the identity authentication of the peers in P2P network is provided in this paper. The proposed security and authentication protocol made use to the combination of public key and secret key to provide such ploy. We also applied to the authentication test method to prove the correctness of the protocol.

This paper introduces application of JXTA in P2P network and analysis JXTA technology advantage and disadvantage in distributed parallel computation. Parallel computation task scheduling in JXTA network environment have not realize load balance, so we design a solution which depend on load prediction to solve parallel computation task scheduling in JXTA. Finally, we develop a parallelization searching prime application program in peer to peer JXTA network environment in order to test this solution's performance.