We mainly explore (wo problems when combining fPSec module into TCP/IP stackby porting the famous IPSec software (FreeS/WAN ) into a security gateway. One is how to implementthe IPSee module based on Netfilter in Linu...We mainly explore (wo problems when combining fPSec module into TCP/IP stackby porting the famous IPSec software (FreeS/WAN ) into a security gateway. One is how to implementthe IPSee module based on Netfilter in Linux 2. 4. x kernel The other problem is the performancee-valuation. We test the throughput of our security gateway before and after applying IPSec withdifferent encryption/decryption algorithms, including the soft ware-based and hardware-based methodWith these testing data, we analyzefurther system performance bottleneck. In the end, we also inferthe quantitative relation between the system throughput and the speed of encryption/decryptionalgorithm and propose some valuable conclusions for improving performance.展开更多
文摘We mainly explore (wo problems when combining fPSec module into TCP/IP stackby porting the famous IPSec software (FreeS/WAN ) into a security gateway. One is how to implementthe IPSee module based on Netfilter in Linux 2. 4. x kernel The other problem is the performancee-valuation. We test the throughput of our security gateway before and after applying IPSec withdifferent encryption/decryption algorithms, including the soft ware-based and hardware-based methodWith these testing data, we analyzefurther system performance bottleneck. In the end, we also inferthe quantitative relation between the system throughput and the speed of encryption/decryptionalgorithm and propose some valuable conclusions for improving performance.