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.
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