PGP Key Signing

Once again, we will be holding a PGP Key signing party at the 73rd IETF
meeting in Minneapolis. We have been scheduled to meet at 1820 on the
evening of Tuesday, Nov 18, in the Duluth room.

*** NOTE DAY CHANGE ***
Our scheduled time slot on Tuesday evening is a departure from previous
IETF meetings, when we have held key signing sessions on Wednesdays.
Changes in the IETF meeting agenda to hold both plenary sessions on
Wednesday evening have reduced the length of the pre-plenary break and
make it impractical to hold a key-signing session on Wednesday.  Our
scheduled slot is 40 minutes on Tuesday evening, between the end of the
last meeting session on Tuesday and the start of the social event.
We should be done in plenty of time for participants to attend the
social event or find dinner elsewhere.

The procedure we will use is the following:

o People who wish to participate may do so in one of two ways. You may
  bring slips of paper with your name, e-mail address, key-id, and key
  fingerprint. (One way of generating this if using gpg is "gpg
  --list-keys --fingerprint my_username@hostname") You should bring
  enough for everyone who may attend; given recent attendance patterns,
  around 50 should be more than enough. (You can generally fit 10-12
  strips containing your key fingerprint on a single sheet of paper, and
  then cut out strips to hand out.)

o Alternatively, you may email an ASCII extract of their PGP public key
  to <jhutz@cmu.edu> by noon on Tuesday, Nov 18, 2008. Please include
  a subject line of "IETF PGP KEY", and please DO NOT MIME-ENCRYPT your
  e-mail; send it to me as plain text.

  The method of generating the ASCII extract under Unix is:

        pgp -kxa my_email_address mykey.asc (pgp 2.6.2)
        pgpk -xa my_email_address > mykey.asc (pgp 5.x)
        gpg --export -a my_email_address > mykey.asc (gpg)

  If you're using Windows or Macintosh, hopefully it will be Intuitively
  Obvious (tm) using the GUI interface how to generate an ASCII armored
  key that begins "-----BEGIN PGP PUBLIC KEY BLOCK-----".

o By 1700 on Tuesday, you will be able to fetch complete key ring
  from any of the following locations with all of the keys that were
  submitted:

        /afs/grand.central.org/project/ietf-pgp/ietf73/ietf73.pgp
        http://grand.central.org/dl/ietf-pgp/ietf73/ietf73.pgp
        ftp://grand.central.org/pub/ietf-pgp/ietf73/ietf73.pgp

o At 1820, come prepared with the PGP Key fingerprint of your PGP
  public key; we will have handouts with all of the key fingerprints of
  the keys that people have mailed in.

o In turn, readers at the front of the room will recite people's keys;
  as your key fingerprint is read, stand up, and at the end of reading
  of your PGP key fingerprint, acknowledge that the fingerprint as read
  was correct.

o Later that evening, or perhaps when you get home, you can sign the
  keys corresponding to the fingerprints which you were able to verify
  on the handout; note that it is advisable that you only sign keys of
  people when you have personal knowledge that the person who stood up
  during the reading of his/her fingerprint really is the person which
  he/she claimed to be.

o Send the signed keys to the owners, and, optionally, to the PGP key
  servers. Some people opt to NOT send the signed keys to the
  keyservers, but rather choose to send them only to the e-mail address
  on the key's userid, encrypted for that particular key. This tends to
  ensures the validity of the e-mail address.

Note that you don't have to have a laptop with you; if you don't have
any locally trusted computing resources during the key signing party,
you can make notes on the handout, and on the strips of papers, and then
take these and sign the keys later.

Acknowledgment: The bulk of the text of this message was taken from the
messages usually sent by Ted Ts'o to announce IETF key signing parties.

-- Jeffrey T. Hutzelman (N3NHS) <jhutz+@cmu.edu>
   Sr. Research Systems Programmer
   School of Computer Science - Research Computing Facility
   Carnegie Mellon University - Pittsburgh, PA

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