一种快速加解密的Femto安全网关系统

Fast encryption and decryption method of security gateway in Femto system

Femto是一种新兴的固网与移动网络融合的热点技术。为了解决传统Femto系统中IPsec安全网关在用户接入多、网络流量大的情况下所引起的时延、拥塞、吞吐量降低等问题,文中提出一种快速加解密的IPsec安全网关方案。分析了传统加解密方案存在的问题,针对传统方案处理速度慢的问题提出了优化安全网关加解密处理的方案。流量测试的对比结果表明,新方案对安全网关处理速度提升3倍左右。

Femto is a hot new technique for emerging convergence of fixed and mobile networks. To resolve the problems such as delay,congestion,and decreasing of throughput,which caused by abundant user accessing or network overloading,a fast encryption and decryption method of security gateway system is proposed. After it analyzed the disadvantage of conventional encryption schemes,a new improved encryption and decryption scheme is put forward. Finally,when the flow test results of two kinds of schemes are compared,the processing speed is three times increased than before.