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Todaypsilas Internet architecture faces many challenges, especially the poor support for security and universal services. By analyzing the drawbacks of current TCP/IP protocol and related research schemes such as HIP and FARA, we propose a trustworthy universal network architecture model LISNA, which is based on locator/identity split. LISNA defines the network architecture by introducing a new kind of identifiers which are based upon the decoupling of end-hostspsila identity information from location information. Security mechanism in LISNA is analyzed in the rest of the paper. In the end, the paper further introduces some experiments and tests to compare the security association renewal time of LISNA with MIP+Ipsec and gives the experiment results.