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【速搜问答】GUID是什么

问答 admin 1年前 (2020-08-21) 224次浏览 已收录 0个评论

汉英对照:
Chinese-English Translation:

全局唯一标识符(GUID)是一种由算法生成的二进制长度为128位的数字标识符。GUID主要用于在拥有多个节点、多台计算机的网络或系统中。在理想情况下,任何计算机和计算机集群都不会生成两个相同的GUID。

A globally unique identifier (GUID) is a 128 bit digital identifier generated by an algorithm. Guids are mainly used in networks or systems with multiple nodes and computers. Ideally, no computer or cluster of computers will generate two identical guids.

全局唯一标识符(GUID,Globally Unique Identifier)是一种由算法生成的二进制长度为 128 位的数字标识符。GUID 主要用于在拥有多个节点、多台计算机的网络或系统中。在理想情况下,任何计算机和计算机集群都不会生成两个相同的 GUID。GUID 的总数达到了 2^128(3.4×10^38)个,所以随机生成两个相同 GUID 的可能性非常小,但并不为 0。所以,用于生成 GUID 的算法通常都加入了非随机的参数(如时间),以保证这种重复的情况不会发生。

Globally unique identifier (GUID) is a kind of 128 bit digital identifier generated by algorithm. Guids are mainly used in networks or systems with multiple nodes and computers. Ideally, no computer or cluster of computers will generate two identical guids. The total number of guids is 2 ^ 128 (3.4 × 10 ^ 38), so the probability of randomly generating two identical guids is very small, but not 0. Therefore, the algorithms used to generate guids usually include non random parameters (such as time) to ensure that this repetition does not occur.

GUID 一词有时也专指微软对 UUID 标准的实现。

The word “guid” sometimes refers to Microsoft’s implementation of the UUID standard.

在 Windows 平台上,GUID 广泛应用于微软的产品中,用于标识如注册表项、类及接口标识、数据库、系统目录等对象。

On Windows platform, guids are widely used in Microsoft products to identify such objects as registry keys, class and interface identification, database, system directory, etc.

格式

format

GUID 的格式为“xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx”,其中每个 x 是 0-9 或 a-f 范围内的一个十六进制数。例如:6F9619FF-8B86-D011-B42D-00C04FC964FF 即为有效的 GUID 值。

The format of the GUID is “xxxxxxxx-xxxxx-xxx-xxxxx-xxxxxxxxx”, where each x is a hexadecimal number in the range of 0-9 or a-f. For example, 6f9619ff-8b86-d011-b42d-00c04fc964ff is a valid guid value.

特点

characteristic

1.需要 GUID 的时候,可以完全由算法自动生成,不需要一个权威机构来管理。

1. When guids are needed, they can be generated automatically by the algorithm, and no authority is needed to manage them.

2.GUID 理论上能产生全宇宙唯一的值,对于以后的数据导入很方便。

2. In theory, the unique value of the whole universe can be generated, which is very convenient for future data import.

争议

dispute

由于 GUID 值产生的潜在弊端已经引起了保密性提倡者的关注。1999 年 3 月,美国联邦商务委员会接到要求,对微软的 GUID 值使用进行调查。争议主要涉及 Office 97 和 Office 2000 文档对 GUID 值的使用。Office 文档,如 Word 文件或 Excel 电子数据表,所使用的 GUID 值对用户是不可见的。但有很多报道宣称,文档的作者是可以通过 GUID 值的跟踪查到的,即使作者已经采用特殊方法,他们还是可以被追踪到。 为了回应上述问题,微软已经发布了一个 Office 97 修补版 SR2,它禁止了 GUID 功能的使用,并且还可以将现存文档的 GUID 去除。

Due to the potential drawbacks of the guid value, it has attracted the attention of privacy advocates. In March 1999, the federal Commerce Commission of the United States received a request to investigate the use of Microsoft’s guid value. The dispute mainly involves the use of the guid value in office 97 and Office 2000 documents. Office documents, such as word files or Excel spreadsheets, use guids that are not visible to users. However, many reports claim that the author of a document can be traced by tracking the value of the guid, even if the author has adopted a special method. In response to these questions, Microsoft has released a patch version of office 97, Sr2, which bans the use of guids and can also remove guids from existing documents.

潜在的对 Intel 处理器序列号滥用的问题与上述 GUID 值的问题本质是一样的。

The potential misuse of the Intel processor serial number is essentially the same as the above problem with the guid value.


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