已在安全性群组中加入或移除使用者，或更新使用权限。
Users are added to or removed from security groups or permissions are updated.
对于所有连入连线，测试控制器会验证呼叫方并确认它是否属于特定安全性群组。
For all incoming connections, the test controller authenticates the calling party and verifies that it belongs to specific security group.
因此，具有相同装载群组和安全性内容的提供者，会共用同一个服务主机处理序。
So, providers that share the same hosting group and security context share the same service host process.
您也可以在上述任一层级，根据您的安全性模型，建立具有特定使用权限的自订群组。
You can also create custom groups at any of these levels with specific permissions to better fit your security model.
您可以检视、加入、移除和变更安全性原则的程序码群组。
You can view, add, remove, and change code groups for a security policy.
每一个安全性原则层级都有一组使用权限集合，可以在那层级与程序码群组产生关联。
Each security policy level has a set of permission sets that can be associated with code groups on that level.
安全性系统使用XML档来储存和重新建立各个原则层级的程式码群组阶层架构。
The security system uses XML files to store and recreate the code group hierarchy for each policy level.
针对普适环境中节点随时加入和退出群组的特点，设计了组密钥更新协议，保证了组密钥的前向和后向安全性。
Concerning nodes' free joining and leaving the group, group key renewing protocol was proposed, which could guarantee the forward security and backward security of the group key.
针对普适环境中节点随时加入和退出群组的特点，设计了组密钥更新协议，保证了组密钥的前向和后向安全性。
Concerning nodes' free joining and leaving the group, group key renewing protocol was proposed, which could guarantee the forward security and backward security of the group key.
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