Colliding password protected MS office 97-2003 documents

I recently worked on adding support to oclHashcat in order to crack the different versions of password protected MS Office documents. So far I've finished MS Office 2013, 2010, 2007 and the 97-2003 versions (there are different ones). The next version of oclHashcat (v1.31) will ship with support for all these versions.

While I was working on the 97-2003 version I found out that there's a weakness in the scheme that I want to share.

more here...........https://hashcat.net/forum/thread-3665.html