Comments on: Password Protect Compressed (zipped) Folders and Hence Your Files and Folders

By: bear

bear — Fri, 28 Aug 2009 08:45:04 +0000

It’s great.Thanks for sharing

By: Brenton

Brenton — Thu, 23 Apr 2009 02:56:29 +0000

John, using a simple dual-core Intel Core 2 Duo processor, and brute-forcing with All printable characters it took my PC 33 minutes to crack a passworded zip file containing letters (Capital and lowercase), numbers and symbols with the password length being 8 characters long. I am able to attempt ~4,850,000 passwords per second using the Zip Password Tool. Next time before posting, do your homework.

By: Marcus

Marcus — Sun, 04 Jan 2009 02:15:45 +0000

A password protected zip file cannot be cracked any faster than trying all known combinations of the password, which means that the cipher is secure.

The protected zip file is as strong as the password is.

Choose 8 character passwords or longer, with a mix of number, letters, and upper and lower case.

By: Clint

Clint — Fri, 25 Jul 2008 21:42:45 +0000

John, Google rainbow tables. No password is secure and most are crackable in under a minute. You are talking without any knowledge.

By: John

John — Tue, 22 Apr 2008 17:56:26 +0000

Thorsten Claus you are talking without knowing anything i wasn`t going to do any observation but your lack of knowledge ask for one.for a password of 5 characters my computer need 10minutes for a 6char needs 3h and for a 7 char neet 3,5 days and for 8chars 2months or so and that counting that i am searching an archive with ONLY small letters and NO special characters.My procesor is Quad Core XEON E5420 @ 2,50Ghz with 4Gb DDRamII. I am cracking @ this moment 2 archives one with capital letters and one with small letters.Both programs are searching 25.000 pswd per seconds that means processor up to 60% all of the 4 processors.So how do you crack any password in 2,1hours is an enigma to me. this is my processor for the non believers. SO PLS 4 the future if you do not know what to say is better to shut up. http://s53.photobucket.com/albums/g53/xXGrim-WardXx/?action=view¤t=CopyofPIC-0087.jpg

By: shahid

shahid — Thu, 06 Mar 2008 05:05:35 +0000

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shahid

By: Thorsten Claus

Thorsten Claus — Tue, 07 Aug 2007 19:05:31 +0000

Errr, I saw that my previous posting SHOULD’ve started with:

“Microsoft Vista doesn’t offer the password protection feature of ZIP files anymore – and for a good reason.”

By: Thorsten Claus

Thorsten Claus — Tue, 07 Aug 2007 18:58:50 +0000

Microsoft could have implemented the zip pwd feature again and lull people into a false sense of security, as a quick search on Google for “zip password recovery” will show many freeware, shareware, and commercial cracking utilities, from brute force mechanisms to dictionary attacks. The average time to crack a zip pwd for me is 2.1 hours, and I have an old processor. I can imagine the headlines in the news: “Microsoft doesn’t fix security hole.”

Now on the other hand, Microsoft could’ve implemented a proprietary mechanism – probably also provoking the wreath of the people

Or you just use freeware or the fingerprint reader software that came with your computer.

Or, looking forward, you store and share your docs in a safe place online (if only SSL would be secure, haha)

Cheers,
Thorsten

By: davidmcmanus

davidmcmanus — Wed, 01 Aug 2007 22:59:20 +0000

i was removing the password from a compressed folder that i made and when it finished removing the password from the files it deleted all but one of the files.it didnt send the files to the recycle bin or anything but just made them disappear.my system is a windows xp.

please help me as these files are quite important.

By: formatted need something to crack my zipped folders - MafiaCoders

formatted need something to crack my zipped folders - MafiaCoders — Fri, 13 Apr 2007 18:10:13 +0000

[...] or My Computer, then from File menu, choose