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Re: password protection of a file



On Sat, 2005-01-15 at 22:42 -0500, David Mandelberg wrote:
> Ron Johnson wrote:
> > Or, less securely, but more simply:
> >   zip -e -0 infil outfile
> Less securely is probably the understatement of the year. fcrackzip has never
> taken more than 1 sec on my desktop (Athlon XP 2800+) to find a password that
> works to unencrypt a zip file.

Dictionary or brute force?

On my XP 2200+ trying to crack a zipfile that has the password
"th151sar3a11y10ngpa55w0rd" has been running now for about 4 
hours, and still hasn't returned.

$ time fcrackzip ../OOo_1.1.4_Win32Intel_install.zip

(I unzipped the stock OOo_1.1.4_Win32Intel_install.zip and 
recreated it with the password.)

-- 
-----------------------------------------------------------------
Ron Johnson, Jr.
Jefferson, LA USA
PGP Key ID 8834C06B I prefer encrypted mail.

After seeing all the viruses, trojan horses, worms and Reply
mails from stupidly-configured anti-virus software that's been
hurled upon the internet for the last 3 years, and the time/money
that is spent protecting against said viruses, trojan horses &
worms, I can only conclude that Microsoft is dangerous to the
internet and American commerce, and it's software should be
banned.

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