【摘要】 研究了在IPSec封装安全载荷(ESP)中应用AES加密机制。AES是一个对称分组密码算法,有多个操作模式可供选择。针对建立基于AES加密机制的IPSecVPN情况,着重探讨了使用CBC和CTR两种操作模式时值得注意的一些问题。同时分析了AES算法的性能。更多还原

【Abstract】 This article researches the use of AES cipher mechanism within IPSec encapsulating security payload (ESP). AES algorithm is a symmetrical block cipher algorithm; it can select many operation modes to work. In building IPSec VPN based on AES cipher mechanism, it notices some problems of using CBC and CTR operation modes mainly are discussed. At the same time, it analyzes the excellent performances of AES algorithm.更多还原