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View Full Version : Rar, Password Protected?



RahulDhanpat
02-12-2008, 05:56 AM
I have got a big rar file downloaded for net and now the problem is that it is password protected? :( ,,,, i tried to use many software but not a single worked.


is there any otherway to open it ??/

CornedBee
02-12-2008, 06:03 AM
You could find out the password from your source.

Of course, if your source is an illegal download, then you have no business finding out the password, nor discussing it here.

Elysia
02-12-2008, 06:03 AM
Winrar, but you still need to know the password. And I just hope it's not something... illegal ;)

RahulDhanpat
02-12-2008, 07:54 AM
no its not something illegal. I have got some password protected rar file in which there were 120 jpeg picture fo our trip to goa was... My freind sent me via repidshare and told me the password. this thing happen 2 months back and now after formatting the hardisk i want those picture back then its aksing for password and unfortunatly , my freind also forgot the password.

hk_mp5kpdw
02-12-2008, 07:57 AM
If he's still got the images, then he can repackage them up in another rar file with a new password and put that up on Rapidshare for you to download.

abachler
02-12-2008, 09:27 AM
Rar password protection is much stronger than zip pasword protection. You will have to actually know the password to unrar the files as it encrypts them with the password, whereas zip just check that the password matches a hash code (or somethign liek that). The point is Zip password protection is trivial to crack, while RAR is not.

Sang-drax
02-12-2008, 04:51 PM
Rar password protection is much stronger than zip pasword protection. You will have to actually know the password to unrar the files as it encrypts them with the password, whereas zip just check that the password matches a hash code (or somethign liek that). The point is Zip password protection is trivial to crack, while RAR is not.
I doubt that Zip compression is "trivial to crack". Why would programs like this exist if it were: http://lastbit.com/zippsw/default.asp It mentions dictionary search, which suggests that brute force is sometimes too slow. It's probably simpler than RAR, though.

To answer the original question: you'll need a RAR password recovery tool. Using brute force and/or dictionaries it might be able to recover the password if it's not too long.

RahulDhanpat
02-15-2008, 12:23 PM
I tried all above things but it dint work.... I feel this forum is programmers lounge and someone will be there to solve this problem.

Elysia
02-15-2008, 12:28 PM
Cracking a password certainly is no easy task and will require lots of reverse engineering or just a brute force attack, both of which may take several days and I doubt anyone wants to do this assignment for you.

whiteflags
02-15-2008, 12:30 PM
I tried all above things but it dint work.... I feel this forum is programmers lounge and someone will be there to solve this problem.

You even tried asking your friend to send the pictures again, re-archived? And that didn't work?

Mario F.
02-15-2008, 12:31 PM
I tried all above things but it dint work.... I feel this forum is programmers lounge and someone will be there to solve this problem.

Quite right. A programmers forum. For illegal cracking purposes you should move somewhere else.

abachler
02-16-2008, 01:48 PM
I doubt that Zip compression is "trivial to crack". Why would programs like this exist if it were: http://lastbit.com/zippsw/default.asp It mentions dictionary search, which suggests that brute force is sometimes too slow. It's probably simpler than RAR, though.

To answer the original question: you'll need a RAR password recovery tool. Using brute force and/or dictionaries it might be able to recover the password if it's not too long.

There are applications out on the net that will give you the password to a zip file in milliseconds, ergo it is trivial to crack. Trivial for a computer doesnt mean trivial for a guy with a pencil, but it still means it is trivial.

Neo1
02-16-2008, 06:27 PM
Quite right. A programmers forum. For illegal cracking purposes you should move somewhere else.

He just explained why he needs the RAR opened, so why the accusations? Or is everyone here just to paranoid to help anyone with anything that might possibly perhaps could be illegal?

Anyone care to help sharpen my knife? Oh no, what if you stabbed someone?!?