Talk:Word Document (DOC)
Versions from 97-2003 use industry standard 40 bit encryption. ... This is done by testing all 65536 possible keys.
Hmm... 65536 = 256^2 = 2 bytes = 16 bit... By the way http://www.vdgsoftware.com/uzcdetails.html says: The number of keys is very large: 1,099,511,627,776
Joachim rename this to Word Binary Format. The .doc extension is used for multiple formats. There is only one MS Word Binary Format (WordBF).