0引言采取防火墙、入侵检测系统和病毒防范等措施是当前解决信息安全问题比较传统的方案,在功能上比较孤立、单一,大多数情况只能应对已知网络攻击,同时,其自身安全系统的可靠性也没有保证。随着大数据时代的到来,它们己经不能很好地应对日益复杂化的网络安全问题。可信计算理论的提出,给解决网络安全问题带来了新的思路。目前,学术界比较认可的可信网络的定义是:“一个可信的网络应该是网络系统的行为及其结果是可以预期的,能够做到行 0 Introduction Take measures such as firewall, intrusion detection system and virus prevention are the more traditional solution to the current information security problems. They are relatively isolated in function, simple in most cases and can only deal with known network attacks. Meanwhile, the security system There is no guarantee of reliability. With the advent of the big data era, they have not been able to respond well to the ever-increasing complexity of cyber-security issues. Trusted computing theory put forward to solve the problem of network security has brought new ideas. At present, the definition of trusted network recognized by academia is: ”A trusted network should be the behavior of the network system and the result is expected, to be able to do