Colliding password protected MS office 97-2003 documents
#8
Cool. I don't quite see the gain with the mitm in this case though. If you skipped that and just made a "naive" yet optimized format, would you not get nearly 80Mp/s anyway since the significant work is RC4 anyway? And at first hit of that (within 2h on average), you'd be done. (Edit: you said 65Mp/s so 2:20h on average but I still don't see much point with mitm)

That is unless you want to find more candidates for the same documents though (trying to spot the "real" password). In that case the mitm is a definitive speedup.

Anyway, what really impress me is the RC4 speed you achieve!
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RE: Colliding password protected MS office 97-2003 documents - by magnum - 09-09-2014, 11:44 PM