[140755] in North American Network Operators' Group
Re: Had an idea - looking for a math buff to tell me if it's possible
daemon@ATHENA.MIT.EDU (Philip Dorr)
Wed May 18 17:25:47 2011
In-Reply-To: <BANLkTikvgTR+tUN4WTtc1e8HudoAro=mRg@mail.gmail.com>
From: Philip Dorr <tagno25@gmail.com>
Date: Wed, 18 May 2011 16:19:15 -0500
To: Christopher Morrow <morrowc.lists@gmail.com>, nanog@nanog.org
Reply-To: tagno25@gmail.com
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, May 18, 2011 at 3:33 PM, Christopher Morrow
<morrowc.lists@gmail.com> wrote:
> On Wed, May 18, 2011 at 4:18 PM, Michael Holstein
> <michael.holstein@csuohio.edu> wrote:
>>
>>> Just a weird idea I had. =C2=A0If it's a good idea then please consider=
this
>>> intellectual property.
>>>
>>
>> It's easy .. the zeros are fatter than the ones.
>
> no no no.. it's simply, since the OP posited a math solution, md5.
> ship the size of file + hash, compute file on the other side. All
> files can be moved anywhere regardless of the size of the file in a
> single packet.
>
>
> The solution is left as an exercise for the reader.
>
You would need a lot of computing power to generate a file of any
decent size. If you want to be evil then you could send just a md5
hash and a sha512 hash (or some other hash that would not have a
collision at the same time except when correct)
