Unzip file

[tyrannus]

Hey all, was wondering if any of you knew of any programs I can use to get a file unzipped.

I receive a password protected zip file with AES 256 bit encryption. I need an app that will unzip it for me. Any Ideas out there?

 

[thedaver]

Linux has a zip/unzip package capability.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/

 

[macd68]

He needs a password cracker.
You could google it..there are plenty of hits for this particular 'zip file password crack' utility or look at extracting the hash from memory in a running unzip session and running a traditional password cracker against it. Good luck.

 

[tyrannus]

I don't need to "crack" the password. I have that. What I need is a way to extract the files with the password.

 

[macd68]

thedaver's post gave you that. Good luck.

 

[tyrannus]

I have tried using Linux unzip and it still does not work. Just skips over the file. Guess I will just google till I find something.

 

[TonyGroves]

Or even "man unzip". Works wonders sometimes.

 

[tyrannus]

Yeah, have checked man up and down and nothing I have tried seems to work. Maybe I am trying to do it wrong.

 

[sleipnir214]

The problem is that WinZip seems tp encrypt the internal files, not the entire ZIP file. [Not the way I would have done it -- what if I don't want someone seeing my filenames, either?] And it's doing something weird with the headers in the file, so Linux's zip command can't get traction on it.

I think what you need is 7zip. I found a discussion of this problem in a Ubuntu forum and was able to modify the Ubuntu apt-get commands to yum commands on my Fedora 7 laptop.

I can AES-encrypt a zip-file using WinZip and decrypt it using 7zip on Linux.




Want to ask the best questions? Read Eric S. Raymond's essay "How To Ask Questions The Smart Way". TANSTAAFL!

 

[Annihilannic]

AES-128 and AES-256 are relatively new to the ZIP format. unzip hasn't been updated for quite some time, so it doesn't seem to support these encryption methods. Try p7zip, the command-line version of 7-zip.

http://sourceforge.net/project/showfiles.php?group_id=111810&package_id=120924&release_id=539516

Annihilannic.