Took me a while, probably not what you want to hear - but this is what I
found out...
By default Office Excel 2007, PowerPoint, Word all use the following
settings when a user encrypts a document:
- For documents that are saved in the Office Open XML Formats, the
cryptographic service provider (CSP) is the Microsoft Base Cryptographic
Provider, the cryptographic algoritithm is AES-128, and the cryptographic
key length is 128 bit.
- For documents that are saved in the Office 97-2003 format, the Office
97/2000-compatible encryption method is used, which is a proprietary
encryption method.
If you install Office using an install point, then you can apparently
change the security settings as part of the deployment package.
(I found this information in the Microsoft Office TechNet - 2007 Office
Resource Kit)
--
Dawn Crosier
Microsoft MVP
"Education Lasts a Lifetime"
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