0
votes
1answer
112 views

Is it possible to write an app that ignores the zip archive password?

I am not sure how password protected archives work but is it the programs enforcing the protection or is it the way the format works where if it's password protected, there is no way to extract the ...
2
votes
1answer
864 views

Remove known password from zip archive without extracting

is it possible to remove a known password from a ZIP archive without extracting the actual archive? I have some heavily compressed archives and want to avoid having to extract and rezip each of those ...
0
votes
1answer
269 views

Would knowing the file names of password protected ZIP/RAR assist in cracking?

So I have a couple of password protected rars and zips (don't worry, this is for educational reasons only). I know the exact names of the files in those rars and zips. Dictionary attacking the files ...
9
votes
2answers
49k views

How to crack a password protected zip file

I recently downloaded a piece of software that came in a .ZIP archive, but the .EXE software inside of the archive had a password on it. The website that I would have gotten the password from closed ...
0
votes
0answers
570 views

How to add password to zip file on SBS 2008?

I'm trying to add a password to a zip file on SBS 2008, but there is no "Add Password" in the File menu. What can I do?
1
vote
1answer
226 views

Shell zip with unattended password

I have a script that runs some automatic zip generation using shell zip. The request is to add automatic encryption with password. From what I understand, the option -e is the right one, but it asks ...
0
votes
1answer
916 views

rar & zip password recovery [duplicate]

Possible Duplicate: ZIP password recovery I have rar & zip files that I made a year ago and I don't remember the password. Is there a way to recover it?
4
votes
3answers
12k views

add password to existing zip file with 7zip

Is it possible to add a password to an existing zipfile with 7zip without going to all the trouble of unpacking it and re-packing it again?
25
votes
2answers
18k views

How secure are password-protected zip files?

In modern zip utilities like 7zip, you can specify a password when creating a .ZIP file. But, how secure is this? What encryption algorithm(s) are used to secure password-protected zip files?
7
votes
2answers
6k views

How can i recover a zip password using CUDA (GPU)?

How can i recover a zip password on linux using CUDA (GPU). For the past two days i tried using "fcrackzip" but it's too slow Few months back i saw some application that can use GPU / CUDA and get ...
4
votes
3answers
2k views

Is it feasible to crack ZIP passwords?

I have a piece of software I have to install on company laptops. The installer needs a serial to work properly, but I don't have it (my manager isn't here so I can't ask him). The installer tells me ...
8
votes
7answers
9k views

7zip doesn't ask me for password for a zip I encrypted while double-clicking it

I just tried to encrypt a folder with 7zip by command line choosing a password but when double-clicking on the zip file, it shows me the files list without asking any password. Any other alternative ...
4
votes
2answers
4k views

Bash command to compress folder(s) with a password

How can I compress two folders into archive file (zip, gzip or something like that) with a password on the files? For example I have folder structure: rootDir dir1 dir2 dir3 dir4 I need bash ...