Stephen Kent wrote:
Just as a CA may employ various means to verify a subject's claim to a name, a CA can employ analogous means to verify a subject's claim to a logotype. In fact, this may be relatively easy to verify if the logo is a registered trademark (something a CA could require via its CPS).
Unfortunately it's not that easy. As a CA I would simply refuse to add logo types to a cert because the CA could be in charge for trademark abusing afterwards. There are currently too many such cases going to court because some lawyers want to make a lot of money out of it (e.g. setting a link on the web page to a name which is considered to be similar to a trademarked name). Well, we have the same issue with organization field though...but the lawyers did not discover it yet.
Ciao, Michael.