Rar, Password Protected?

This is a discussion on Rar, Password Protected? within the A Brief History of Cprogramming.com forums, part of the Community Boards category; I have got a big rar file downloaded for net and now the problem is that it is password protected? ...

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    Rar, Password Protected?

    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 ??/

  2. #2
    Cat without Hat CornedBee's Avatar
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    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.
    All the buzzt!
    CornedBee

    "There is not now, nor has there ever been, nor will there ever be, any programming language in which it is the least bit difficult to write bad code."
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    C++まいる!Cをこわせ!
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    Winrar, but you still need to know the password. And I just hope it's not something... illegal
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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    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.

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    Registered User hk_mp5kpdw's Avatar
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    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.
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
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    Malum in se abachler's Avatar
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    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.
    Until you can build a working general purpose reprogrammable computer out of basic components from radio shack, you are not fit to call yourself a programmer in my presence. This is cwhizard, signing off.

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    S Sang-drax's Avatar
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    Quote Originally Posted by abachler View Post
    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.
    Last edited by Sang-drax : Tomorrow at 02:21 AM. Reason: Time travelling

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    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.

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    C++まいる!Cをこわせ!
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    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.
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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    Registered User whiteflags's Avatar
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    Quote Originally Posted by RahulDhanpat View Post
    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?

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    (?<!re)tired Mario F.'s Avatar
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    Quote Originally Posted by RahulDhanpat View Post
    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.
    The programmer’s wife tells him: “Run to the store and pick up a loaf of bread. If they have eggs, get a dozen.”
    The programmer comes home with 12 loaves of bread.


    Originally Posted by brewbuck:
    Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.

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    Malum in se abachler's Avatar
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    Quote Originally Posted by Sang-drax View Post
    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.
    Until you can build a working general purpose reprogrammable computer out of basic components from radio shack, you are not fit to call yourself a programmer in my presence. This is cwhizard, signing off.

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    Quote Originally Posted by Mario F. View Post
    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?!?
    How I need a drink, alcoholic in nature, after the heavy lectures involving quantum mechanics.

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