[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <c10cc36c049584afadd9d2eba8001765@smtp.hushmail.com>
Date: Sat, 28 Feb 2015 00:58:08 +0100
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Cracking GPG symmetric encrypted file
This would be hard to write a generic format for, because as far as I
know we wouldn't have *any* known plaintext. AFAIK we wouldn't have a
single bit of it. So we could make educated guesses like "if all of the
decrypted text is printable, we're done" or some other random strategy
but it would definitely not be generic: For example, what if the
decrypted text is a gzipped file? Nothing of that will be printable.
If you *know* the decrypted stuff will be a PDF, or you *know* it will
be a jpeg, or you *know* whatever other format it should be, then you
know what to look for. If not, I guess the choice is either "LOTS of
false positives" or "very high risk of false negative". Both
alternatives kill all joy of cracking.
magnum
On 2015-02-28 00:26, Albert Veli wrote:
> It depends on what type of file it is. Can you give more information about
> the file?
>
> On Fri, Feb 27, 2015 at 5:40 PM, <suspekt@....de> wrote:
>
>> Hi out there,
>> Can I crack a symmetric enrypted file with John? So no GPG key, just a
>> password protected file.
>>
>> Thanks
>> suspekt
>>
>
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
