GnuPG vs Digital Certificates?

["Mark G. Spencer" <mspencer () evidentdata com>]

I was hoping someone could explain the theoretical and practical issues
involved between using public/private keys with GnuPG and digital
certificates from a vendor like Thawte?

I've noticed many applications (IM, email, etc.) can use GnuPG or digital
certificates and I would like to standardize if possible on the solution
that makes most sense for my coworkers.

Thanks!

Mark


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