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Date: Fri, 26 Jun 2015 12:05:09 +1000
Subject: Re: Pure Python Data Mangling or Encrypting
From: Chris Angelico <rosuav@gmail.com>
Cc: Python <python-list@python.org>
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On Fri, Jun 26, 2015 at 11:01 AM, Ian Kelly <ian.g.kelly@gmail.com> wrote:
> On Thu, Jun 25, 2015 at 6:33 PM, Chris Angelico <rosuav@gmail.com> wrote:
>> On Fri, Jun 26, 2015 at 1:26 AM, Jon Ribbens
>> <jon+usenet@unequivocal.co.uk> wrote:
>>> Well, it means you need to send 256 times as much data, which is a
>>> start. If you're instead using a 256-byte translation table then
>>> an attack becomes utterly impractical.
>>>
>>
>> Utterly impractical? <chomp analysis>
>
> You're making the same mistake that Steven did in misunderstanding the
> threat model.

To be honest, I wasn't actually answering anything about the original
threat model, but only responding to the statement that a 256-byte
"anything-to-anything" cipher is somehow incredibly secure. It isn't,
but that might not be a problem for the original purpose.

ChrisA