操作系统安全保密的核心是访问控制。
The kernel of operating system's safety and secrecy is access control.
信息的保密性和安全性在位置获取系统中是一个非常重要的考虑事项。
Privacy and the security of information are important concerns in a location acquisition system.
该模型主要解决了邮件系统中存在的身份鉴别、防止抵赖、保密性、完整性等安全问题。
This model mainly solve Authentication, Nonrepudiation, Privacy and Integrity existed in the current mail system.
为了提高系统安全性，研究了数据保密技术。
In order to improve the security of system, data security technology is also researched.
该系统成本低，效率高，安全保密性好。
The system features low cost, high efficiency and good security.
购买一些保密软件并且设计你自己的安全系统。
Purchase blocking software and design your own safety system.
购买一些保密软件并且设计你自己的安全系统。
Purchase blocking software and design your own safety system.
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