常采用的数据保护技术有用户身份鉴别、计算机数据加密技术、数字签名技术等。
User ID authentication, data encryption and digital signature are the three common technologies for data protection.
从本质上讲，苹果的专利使设备能够鉴别用户的身份，显式确定是否及何时该用户是“未经授权的”，或者，换句话说，该设备被盗了。
Essentially, Apple's patent provides for a device to investigate a user's identity, ostensibly to determine if and when that user is "unauthorized," or, in other words, stolen.
该方案最大的特点是公开了水印识别器，允许最终用户以验证者的身份鉴别软件作品的可靠性和真实性。
The most important feature is to open the water recognizer, which allows the end user as a verifier to identify the reliability and the true copyright author of the software work.
该方案对于不同权限级别的用户，采用分级的身份鉴别技术，充分保证了账户的移动性和访问的安全性。
This scheme use different authentication mechanism to authenticate users of different level to ensure the mobility and security of user account.
识别用于区分不同的用户，认证用于鉴别用户的身份。
The former is used to differentiate user and the latter to authenticate the use's identity.
本文首先介绍了基于击键特征的身份鉴别系统的设计，该系统包括数据采集、数据预处理与分析、用户管理等多个层次。
The thesis firstly presents the overall identity authentication system design, including the levels of data acquisition, data preprocessing, data analysis, and user management.
身份验证，就是用户进入信息系统时，系统必须对用户进行身份的合法性鉴别认证，防止非法用户进入系统。
Authentication is, when users log in information system, the system must authenticate the users 'legal status in order to prevent illegal users 'login.
身份验证，就是用户进入信息系统时，系统必须对用户进行身份的合法性鉴别认证，防止非法用户进入系统。
Authentication is, when users log in information system, the system must authenticate the users 'legal status in order to prevent illegal users 'login.
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