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Re: freeware to decrypt password-protected Winzip files
de Lou 06/20/2006 12:23
Franklin wrote:
> On 20 Jun 2006, Dave Turner<3@2.1> wrote:
>
> > the best one for ZIPs is probably Advanced ZIP Recovery made by
> > that Russian guy who's name escapes me at the moment - he was
> > arrested when he went to the US for developing the tool, causing a
> > furore in the programming and related communities.
> >
> > However your question essentially boils down to "what freeware can
> > I use to break AES?". All I can say is - good luck. ;)
> >
>
> Hi Dave, I think I may have explained my need badly.
>
> Maybe it's my criminal-looking face that makes people think I want to
> crack open password-protected zip files. Heh! This is what I
> actually want to do:
>
> (1) I create an ordinary zip file "archive" with Winzip ($$$ware).
>
> (2) I password-protect the zip file. In other words, I encrypt it
> using 'AES 256' built into Winzip. (AES 256 is stronger than AES 128
> or Zip 2.0).
>
> (3) I send the zip file to my recipient by email and I tell them the
> password by phone. The recipient may vary and may be someone I have
> not sent zip files to in the past.
>
> (4) Sometimes the recipent CAN NOT OPEN MY ZIP FILE USING MY
> PASSWORD. All my recipients will be using a WinXP PC provided by
> their employer and the problem may be some limitation of the
> unzipper.
>
> (5) To get around this I would like my recipient to download a
> freeware UNZIP utility in order to open my passworded/encrypted zip
> file. Or I could send them a copy of the freeware with my zip file.
>
> I keep hearing that there is a lot of extremely good zip freeware but
> I know that not all of it can handle strong encryptionsuch as AES
> 256.
>
> In my ideal world the zip freeware would work WITHOUT needing to be
> installed because I'm sure not all my recipients will have WinXP
> installation rights.
If this is being used by and for business why not _pay_ for the stuff?
You may want to read the EULs of many sites that state free versions are
for NON-commercial use.
Lou