A method and system for implementing secure network communications between a first device and a second device, at least one of the devices communicating with the other device via a firewall device, are provided. The method and system may include obtaining an encryption parameter that is shared by the...http://www.google.com.tw/patents/US7188365?utm_source=gb-gplus-share專利 US7188365 - Method and system for securely scanning network traffic