以前，安全默认行为是由 CSI/V2 默认值（允许协议协商）管理的，这意味着非 SSL 客户端能成功请求 SSL 保护的资源。
Previously, the behavior had been governed by the CSI/V2 default which permitted protocol negotiation, which meant that a non-SSL client could successfully request an otherwise SSL protected resource.
该交易协议设计原则包括安全性、匿名性、非否认性、原子性、公平性与效率。
The design principle of exchange protocol includes security, anonymity, non-repudiation, atomicity , fairness and efficiency.
由于集中监测系统为非安全系统，从系统边界防护角度考虑，应该对集中监测系统和其它系统之间的通信接口采用安全通信协议。
As the centralized monitoring system is a non secure system, it is necessary to adopt a secure communication protocol between the centralized monitoring system and other systems.
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