如何使用CFUUID，CFUUID是否可以追溯到唯一的个体。安全/隐私
我是 iPhone 开发人员和 CFUUID 概念的新手，所以我想在开始实现它之前我应该问一下。所以 CFUUID 返回的字符串是否真的是唯一的，或者是否可以追溯到唯一的个体。意思是，我生成一个 CFUUID 对象并将其转换为字符串（使用提供的方法），然后此信息在我的应用程序中使用或存储在服务器数据库中。它是多么独特，我的意思是他们有可能与其他设备上生成的类似。自由使用这些信息是个好主意吗？或者我在这里没有考虑它们的一些安全/隐私方面。 非常感谢任何帮助 谢谢
i an new to iphone Dev and the concept of CFUUID, so thought i should ask, before i start implementing it. so the string returned by CFUUID is it really unique or can it be traced back to a unique individual. meaning lets say, i generate a CFUUID object and convert it to string(using the methods provided) , and then this info is used in my app or stored on a server database. and how unique is it, i mean is their a chance it can be similar to one generated on some other device. is it a good idea to use this info freely or are their some security/privacy aspects that i am not thinking about here.
any help is greatly appreciated
thanks
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CFUUID 确实包含设备的以太网地址，因此对于如何存储/发布它们存在一些隐私问题是适当的。它们不能直接追踪到一个人，但肯定可以追踪到一个特定的设备。
UUID 格式记录在 RFC4122 中，您还可以查看 Apple 的 CFUUID 实现的源代码。
The CFUUID does contain the ethernet address of the device, so it's appropriate to have some privacy concerns about how you store/publish them. They can't be directly traced to a person, but they certainly can be traced to a specific device.
The UUID format is documented in RFC4122, and you can also view the source code of Apple's CFUUID implementation.
CFUUID 参考中的概述解释您的疑虑并概括唯一标识符的生成方式。生成 UUID 时没有特殊的安全问题，它们不一定“指向”任何特定设备，尽管在生成 UUID 时使用了一些硬件参考来帮助确保它们是唯一的（同样，如概述中所述）。它们没有什么特别加密的地方。
The overview in the CFUUID Reference explains your concerns and generalizes how the unique identifiers are generated. There are no special security concerns when generating a UUID, they do not necessarily "point" to any specific device, although some hardware reference is used in their generation to help ensure that they are unique (again, as stated in the overview). There is nothing especially cryptographic about them.