I'm looking at the event description for the key-signing party at an upcoming BSD conference, and it's mentioned that I shouldn't bring my computer in to the event:

Things to bring

no computer


What risks does bringing a computer into a key-signing party pose?

Quote from Wikipedia:


  Although PGP keys are generally used with personal computers for
  Internet-related applications, key signing parties themselves
  generally do not involve computers, since that would give
  adversaries increased opportunities for subterfuge. Rather,
  participants write down a string of letters and numbers, called a
  public key fingerprint, which represents their key. The fingerprint is
  created by a cryptographic hash function, which condenses the public
  key down to a string which is shorter and more manageable.
  Participants exchange these fingerprints as they verify each other's
  identification. Then, after the party, they obtain the public keys
  corresponding to the fingerprints they received and digitally sign
  them.


another one from openwest:


  If you bring a computer, please keep it in your bag and powered down
  during the party. This is for security measures to prevent the spread
  of malicious software, the misplacement of private keys, and damaged
  or misplaced equipment.

