// COMPLETE THREAD

Authentication at toad.com: WTF?

8 expanded posts ยท every known parent and child

NODE 8a8bf1daAuthentication at toad.com: WTF?
Does the idea of having the list software check signatures strike
anybody else as a Bad Idea?  Signatures should be checked locally
by the recipient -- otherwise one might as well ask the sender to
include a statement stating whether or not a message is authentic
and should be believed.  I wouldn't want to see cypherpunks being
used to propogate this false security -- majordomo can no more be
trusted, as an external agent, than a message's sender.
NODE fb090766"Cyherpunks Named Official Signing Authority"
L. Todd Masco wrote:

> Does the idea of having the list software check signatures strike
> anybody else as a Bad Idea?  Signatures should be checked locally
> by the recipient -- otherwise one might as well ask the sender to
> include a statement stating whether or not a message is authentic
> and should be believed.  I wouldn't want to see cypherpunks being
> used to propogate this false security -- majordomo can no more be
> trusted, as an external agent, than a message's sender.

I absolutely agree. 

Having a central "Signing Authority" (analogies with Turing
Authority?) is a step backward. Single-point failures and all that,
vs. the distributed, end-user, local process.

If the intent of a "Compelled Signature" (tm) policy is to get people
used to signing messages, why not get them used to _verifying_ sigs as
well? (I suspect fewer than 1% of all messages have their sigs
checked.)

Very loosely speaking--and with no imputations of motives, ideology,
natch--such a central signing authority could play into the hands of
those on the Net today who are talking about forcing all Net users to
"identify themselves" clearly. 

Imagine the P.R. value to these Net.Cops: "But even the Cypherpunks
require all posts to be signed!."

I say we stick to the anarchy which has worked so well.

--Tim May


-- 
..........................................................................
Timothy C. May         | Crypto Anarchy: encryption, digital money,  
tcmay@netcom.com       | anonymous networks, digital pseudonyms, zero
408-688-5409           | knowledge, reputations, information markets, 
W.A.S.T.E.: Aptos, CA  | black markets, collapse of governments.
Higher Power: 2^859433 | Public Key: PGP and MailSafe available.
Cypherpunks list: majordomo@toad.com with body message of only: 
subscribe cypherpunks. FAQ available at ftp.netcom.com in pub/tcmay
NODE e91f666d1% suspicion
From: "Timothy C. May" <tcmay@netcom.com>
    Date: Wed, 30 Nov 1994 13:14:36 -0800 (PST)
    
    I suspect fewer than 1% of all messages have their sigs checked.

What do you mean?  If you mean that fewer than 1% of the signed
messages that are sent to cypherpunks, you're almost certainly
incorrect.  I read over 1% of the messages on this list and if a
message is signed, with either a header signature or a big-ugly-block
signature, it's checked before I get to read it.

If you count seperate deliveries as seperate messages then you're
almost certainly correct, although it seems like an uninteresting data
point.  If you're talking about clear-signed messages sent to the net
as a whole rather than just this list, I think it's an interesting
question, but I can't imagine what you're basing your suspicion on.

			Rick
NODE 13b52676Re: "Cyherpunks Named Official Signing Authority"
From: tcmay@netcom.com (Timothy C. May)

   If the intent of a "Compelled Signature" (tm) policy [...]

Putting it in quotes doesn't prevent it from being a misrepresentation.

Are you saying that adding notifications and delays is compulsion, or
not?

   [...] is to get people
   used to signing messages, why not get them used to _verifying_ sigs as
   well? 

If the crypto hooks are there for sending mail, you're more than
halfway there for receiving mail.  And yes, this is also something to
encourage.

Your argument can be construed to say that since I can't encourage
signature checking, that I should add that to my list of requirements.
I've been pretty vocal about my desire for partial benefit short of
what is possible.  If server actions don't help signature checking,
OK, well then, they don't, ca va.

   Imagine the P.R. value to these Net.Cops: "But even the Cypherpunks
   require all posts to be signed!."

If the net cops are going to acknowledge a merit in a cypherpunks
position, I say let them.  The opportunity to educate the other
listeners that signatures are not the same as personal identity is an
opportunity not to be missed, especially when your opponent hands it
to you.

Eric
NODE 90903f4bRe: "Cyherpunks Named Official Signing Authority"
Eric Hughes wrote:
> 
>    From: tcmay@netcom.com (Timothy C. May)
> 
>    If the intent of a "Compelled Signature" (tm) policy [...]
> 
> Putting it in quotes doesn't prevent it from being a misrepresentation.
> 
> Are you saying that adding notifications and delays is compulsion, or
> not?

First of all, I am generally commenting on this:

"I am still considering the "sign-or-delay" proposal for the toad.com
server, that is, sign your articles to the list or they'll be delayed
and eventually rejected." [Eric Hughes, 1994-11-28]

"Eventually rejected" mean to me that unsigned messages will not be
passed through to the list. I call this a "compelled signature" in
that the signature is compulsory, not optional. (We hopefully can
avoid splitting semantic hairs about what "compelled" or "compulsory"
means. A Driver's License is compulsory to drive, though one is free
not to drive. If the "eventually rejected" situation is reached, then
a digital sig is compelled in this sense; that one is free to leave
the list or not to write posts does not significantly change this
compulsory or compelled nature.)


>    Imagine the P.R. value to these Net.Cops: "But even the Cypherpunks
>    require all posts to be signed!."
> 
> If the net cops are going to acknowledge a merit in a cypherpunks
> position, I say let them.  The opportunity to educate the other
> listeners that signatures are not the same as personal identity is an
> opportunity not to be missed, especially when your opponent hands it
> to you.

I strongly disagree with this. If a "Cypherpunks position" happens to
be wrong (as many of us think is the case with this "sign your posts
or face delay an, eventually, rejection")), then it is not
automatically good that Net.Cops see it and respond to it.

I say a system which sets up a person or site as arbiter of what is
signed and what is not is counterproductive to our goals. It plays
into the hands of those who wish to ban anonymous posts.

(Clearly I am not saying that the Hughes proposal is a plane to ban
anonymous posts, only that the "all posts should be signed" notion is
very similar to Net.Cop proposals to associate all posts with personal
identity. That the latest explication of the Hughes proposal says that
the emphasis will be on _syntactic_ checking, and not actual
verification, is a subtlety far beyond the Net.Cops who want real
Signature Authorities to validate Citizen-Units messages.)

In other messages this morning I have made my points about
user-to-user verification being what is important.

--Tim May


-- 
..........................................................................
Timothy C. May         | Crypto Anarchy: encryption, digital money,  
tcmay@netcom.com       | anonymous networks, digital pseudonyms, zero
408-688-5409           | knowledge, reputations, information markets, 
W.A.S.T.E.: Aptos, CA  | black markets, collapse of governments.
Higher Power: 2^859433 | Public Key: PGP and MailSafe available.
Cypherpunks list: majordomo@toad.com with body message of only: 
subscribe cypherpunks. FAQ available at ftp.netcom.com in pub/tcmay
NODE 06394e57Re: "Cyherpunks Named Official Signing Authority"
From: tcmay@netcom.com (Timothy C. May)

   First of all, I am generally commenting on this:

   "I am still considering the "sign-or-delay" proposal for the toad.com
   server, that is, sign your articles to the list or they'll be delayed
   and eventually rejected." [Eric Hughes, 1994-11-28]

Tim, I've not been referring to that exact proposal for some time now.
In very specific detail, I have dropped the premise that they might be
rejected.  This happened almost immediately after this recent
discussion began.  I wanted to restrict discussion to what might be
implemented first to avoid the (alas, unavoided) less than productive
discussions about what could happen later.

Was I insufficiently clear that I was now discussing a smaller
proposal?

What I see is that you are refusing (by omission) to address the
subject at hand.  I see a direct, if not intentional, effort to
address something that is not what I have been talking about.

   "Eventually rejected" mean to me that unsigned messages will not be
   passed through to the list. I call this a "compelled signature" in
   that the signature is compulsory, not optional.

This is all well and good, but it is on a different but related
subject.

I ask again the quetion that I specifically asked before.  I'll even
not abbreviate to be clear that I'm actually asking for two things.
Does a marking action by the server create a compulsion to sign?  Does
a delay action by the server create a compulsion to sign?

Eric
NODE aefb2cd5Re: Authentication at toad.com: WTF?
From: "L. Todd Masco" <cactus@hks.net>

   Does the idea of having the list software check signatures strike
   anybody else as a Bad Idea?  

You mean, like the proposer (me)?

I think it _would_ be a bad idea to have the server check all
signatures, and I said so last night.  That's why I only plan on doing
syntactic checks.

Steve Witham understands this.  Steve, didn't you used to fake all of
your sigs, from the last time this got discussed?

Eric
NODE d6f53a2dRe: Authentication at toad.com: WTF?
In article <199412010019.QAA11912@largo.remailer.net>,
Eric Hughes <eric@remailer.net> wrote:
>   From: "L. Todd Masco" <cactus@hks.net>
>
>   Does the idea of having the list software check signatures strike
>   anybody else as a Bad Idea?  
>
>You mean, like the proposer (me)?

Sorry, I wasn't implying that you liked the idea: there are others on the list
who've been advocating this.
-- 
Todd Masco     | "Roam home to a dome, Where Georgian and Gothic once stood
cactus@hks.net |  Now chemical bonds alone guard our blond(e)s,
cactus@bb.com  |  And even the plumbing looks good."  - B Fuller