Re: Algorithms to generate permutations

Crypto_at_S.M.S
Date: 08/04/05


Date: Thu, 04 Aug 2005 19:41:12 +1000

BRG wrote:

> Crypto@S.M.S wrote:
>
> [snip]
>
>>>There are a few (typically specialist) applications where this extra
>>>protection can be valuable, an example being situations where protection
>>>is needed for several decades or more.
>>
>>CryptoSMS is one such "specialist" application.
>
>
> I took a quick look at your web pages and I don't see anything to
> suggest that CryptoSMS is a specialist application. It is a general
> purpose product that attempts to add security to SMS messaging.
>

It is "specialist" in that it only runs on PocketPCs and SmartPhones.

>
> Quite apart from the security problems raised by others, it lacks
> important characteristics that I would expect to see in a specialist
> high security product intended for such use.
>

What are these "important characteristics"?

Please remember that CryptoSMS has some special design considerations,
such as, not saving any key material on the host system.

>
>>>In consequence it is sad to see that some here who are making the case
>>>against multiple encryption in this context end up weakening their
>>>position by deploying spurious arguments.
>>
>>Yes, these spurious arguments have been extremely weak, yet
>>the denizens of Sci.Crypt have been tolerating these thus far.
>>Thanks for coming forward to point that out.
>
>
> My view on this is that most have long since given up any interest in
> this thread since it is dominated more by 'heat' than 'light'.
>
> Brian Gladman

Yes I agree there is much more heat than light.
Unfortunately.