9fans - fans of the OS Plan 9 from Bell Labs
 help / color / mirror / Atom feed
From: Jim Choate <ravage@ssz.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Re: secret stuff
Date: Sun, 16 Jun 2002 19:26:12 -0500	[thread overview]
Message-ID: <Pine.LNX.3.96.1020616192248.1158K-100000@einstein.ssz.com> (raw)
In-Reply-To: <200206162308.TAA17305@math.psu.edu>


On Sun, 16 Jun 2002, Dan Cross wrote:

> > Nobody designed the system to be crackable, but we have a 2nd Law of
> > Thermodynamics to contend with. There is no such thing as a uncrackable
> > system.
>
> One-time pads

If you have a secure channel to pass OTP's then you don't strictly need
the smart card. The channel that the OTP is transfered to is the primary
hole in OTP security, it's also why they are so seldom used in practice.
OTP's are uncrackable ONLY to a naive MITM who has limited access to the
channels of communications.

So, no OTP's are not uncrackable.

> and hyper-encryption under the bounded storage model are
> both `uncrackable.'

I'll leave this one as a exercise for the student as to why it isn't
uncrackable.

>  Even under computational models beyond that of
> Church et al, and with against adversaries with infinite resources.

Uh huh...


 --
    ____________________________________________________________________

              When I die, I would like to be born again as me.

                                            Hugh Hefner
     ravage@ssz.com                                         www.ssz.com
     jchoate@open-forge.org                          www.open-forge.org

    --------------------------------------------------------------------



  reply	other threads:[~2002-06-17  0:26 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-06-16 14:08 presotto
2002-06-16 14:19 ` Jim Choate
2002-06-16 23:08   ` Dan Cross
2002-06-17  0:26     ` Jim Choate [this message]
2002-06-17 17:34       ` Dan Cross
2002-06-18  9:31         ` Douglas A. Gwyn
  -- strict thread matches above, loose matches on Subject: below --
2002-06-17 11:33 Richard Miller
2002-06-17  2:21 David Gordon Hogan
     [not found] <20020616160013.24019.43455.Mailman@psuvax1.cse.psu.edu>
2002-06-16 23:52 ` Andrew Simmons
2002-06-17  0:29   ` Jim Choate
2002-06-17  1:46 ` Andrew Simmons
2002-06-17  2:11   ` Jim Choate
2002-06-17  1:40     ` Sam
2002-06-17  2:43       ` ggm
2002-06-16 22:27 Russ Cox
2002-06-17  1:58 ` Jim Choate
2002-06-16 19:05 Richard Miller
2002-06-16 19:51 ` Jim Choate
2002-06-16 14:22 presotto
2002-06-16 15:59 ` Jim Choate
2002-06-17  9:19   ` Don
2002-06-16  3:58 presotto
2002-06-16  5:10 ` Jim Choate
2002-06-15 16:44 [9fans] " presotto
2002-06-15 17:07 ` [9fans] " Jim Choate
2002-06-14  8:02 [9fans] " Richard Miller
2002-06-16  0:49 ` [9fans] " Jim Choate

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Pine.LNX.3.96.1020616192248.1158K-100000@einstein.ssz.com \
    --to=ravage@ssz.com \
    --cc=9fans@cse.psu.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).