Microsoft Office 2010使用哪种算法进行加密？ [英] What algorithm does Microsoft Office 2010 use for encryption?

问题描述

它是否使用标准AES 128位密钥进行加密？我在Google上搜索了很多，但我还没有发现算法是用于加密。

Does it use the standard AES 128bit key for encryption? I've searched a lot on Google, but I still haven't found the algorithm is uses for encrypting.

我正在加密PowerPoint文件。

I'm encrypting a PowerPoint file.

推荐答案

此技术文章确认默认值为AES 128位密钥，SHA1，CBC。

This technet article confirms that the defaults are AES 128-bit key, SHA1, CBC.

虽然有Office 2010
设置以更改加密方式
执行加密Open XML时
格式文件（.docx，.xslx，.pptx和
等）的默认值 - AES
（高级加密标准），
128位密钥长度，SHA1和CBC
（密码块链接） - 提供
强加密，对于大多数组织应该罚款
。 / p>

Although there are Office 2010 settings to change how encryption is performed, when you encrypt Open XML Format files (.docx, .xslx, .pptx, and so on) the default values — AES (Advanced Encryption Standard), 128-bit key length, SHA1, and CBC (cipher block chaining) — provide strong encryption and should be fine for most organizations.

但是，请注意，加密是出口控制的，并且所有版本的Windows可能没有安装所有加密提供程序。该文章还提到您可以通过检查注册表项来查看安装了哪些加密服务提供程序：

It is important to note, however, that encryption is export controlled and that all versions of windows may not have all cryptographic providers installed. The article also mentions that you can see which Cryptographic Service Providers are installed by checking the registry key:

HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Cryptography/Defaults/Provider

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