Analysis of the Technique of Breaking TCP MD5 Encryption and Authentication for BGP
Sun Ze-mi · Xinxi wangluo anquan · 2015
BGP is an important inter domain routing selection protocol, through which routers can exchange information and select inter domain routing. There are vulnerabilities in BGP protocol, coming from the little consideration for safety in its initial design. One existing security policy is to make the TCP MD5 encryption and authentication between BGP neighbors. However, this simple encryption and authentication mechanism can not ensure safety. After analysis and research on the TCP MD5 certification process,a method is proposed to break the TCP MD5 encryption and authentication in this paper, which takes use of the key dictionary, as well as the principle of MD5 collision. By establishing a real route environment, a breaking verification for TCP MD5 encryption and authentication with a weak key is realized at last.