Re: Keysigning challenge policies/procedures

2006-07-07 Thread Marcus Frings
* Todd Zullinger [EMAIL PROTECTED] wrote:

 What I don't see in any of the links is more information about sending
 an email challenge before signing a key.  (My apologies if I'm
 overlooking it on your page or any of the others.)

Before I used a protocol to signing keys where I sent out random strings
as challenge response but it's not worth. There is no enhanced security
and only more work for signer and signee. If you send the signed UIDs
encrypted to each mail address separately it has the same effect in
security because if the mail address bounces or the person behind the
address doesn't have the private key your signed UIDs won't become
publicly available.

 It's been discussed here before but I've not found any scripts or good
 details that I could point my fellow LUG members toward.  Isn't it a
 good thing to send some random data to each UID on the key someone
 wishes you to sign and require that they send back that data signed by
 the key to prove they control both the key and the email address in
 the UID?

There are some scripts around but don't use CA-Bot as Ingo suggested. As
he has already said it has problems with so-called sign-only-keys and it
sends out broken mails. caff, from the same author, handles these keys
much better. It can be downloaded from the third link I
mentioned. Besides it is already available in Debian and FreeBSD.

Regards,
Marcus
-- 
This elevator serves me alone. I have complete control over
this entire level. With cameras as my eyes and nodes as my
hands, I rule here, insect.
 (Shodan in System Shock)


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Re: Keysigning challenge policies/procedures

2006-07-07 Thread Marcus Frings
* Ingo Klöcker [EMAIL PROTECTED] wrote:
 On Friday 07 July 2006 17:09, Todd Zullinger wrote:

 Have you found in practice that you don't run into many sign-only
 keys that you are asked to certify?

 Among a few hundreds keys I've signed so far only a handful were 
 sign-only or certification-only keys. I did simply sign them with a 
 lower verification level.

Me, too. I just give these sign-only keys a level of 2 as explained in
my policy. I have been at several (large) keysigning parties and luckily
there are not so many sign-only keys around. I don't like them very much
but that's life ...

Regards,
Marcus
-- 
Paranoia - das heißt doch nur, die Wirklichkeit
realistischer zu sehen als andere.


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Re: Keysigning challenge policies/procedures

2006-07-06 Thread Marcus Frings
* Todd Zullinger [EMAIL PROTECTED] wrote:

 I was wondering if some folks here have detailed their challenge
 policies and procedures and if you'd mind sharing them if you have?
 Even handier would be some scripts to help in the automation of this
 task.  ;)

http://www.sc-delphin-eschweiler.de/pgp/
http://sion.quickie.net/keysigning.txt
http://pgp-tools.alioth.debian.org/

Regards,
Marcus
-- 
Was ist für einen Mann das schönste in seinem Leben? - Eine weite Steppe,
ein schnelles Pferd, der Falke auf seiner Faust und der Wind in seinem Haar. -
Falsch! Conan, sag Du es mir! - Zu kämpfen mit dem Feind, ihn zu verfolgen
und zu vernichten und sich zu erfreuen an dem Geschrei der Weiber.


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Re: Key signing at the LinuxTag

2006-04-28 Thread Marcus Frings
* Werner Koch [EMAIL PROTECTED] wrote:
 On Fri, 28 Apr 2006 18:22:44 +0200, markus reichelt said:

 will you attend the key signing party too?

 Only if they don't require to register for that party and use a speedy
 protocol; i.e. requiring participants to hand out paper stripes with
 the fingerprint while at the same same time presenting some kind of ID
 card to the other next participant; then rotating to the next one.

Okay, then I believe you will not attend the key signing party for they
use another protocol and registration is required by this Sunday:

http://www.linuxtag.org/2006/de/community/keysigning.html

However, I would like to exchange fingerprints with you, Werner. I will
be there on Friday. Can we set up place and time here so other people
can join, too?

Regards,
Marcus
-- 
Ich hab BIND Code gelesen. Und es war schrecklich. Ich hab tinydns Code
gelesen. Und es war schrecklich. Man sollte Paul Vixie und DJB mal DNS
erklaeren. Akademisch betrachtet ist tinydns minderwertig. Aber es funktioniert
halt. Angeblich. Thomas Ogrisegg in [EMAIL PROTECTED]


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