Editing Key server (cryptographic) (section)

=== Enterprise PGP ===

A separate key server, known as the PGP Certificate Server, was developed by [[PGP, Inc.]] and was used as the software (through version 2.5.x for the server) for the default key server in PGP through version 8.x (for the client software), keyserver.pgp.com. [[Network Associates]] was granted a [[patent]] co-authored by [[Jon Callas]] (United States Patent 6336186)<ref>{{US patent|6336186|Cryptographic system and methodology for creating and managing crypto policy on certificate servers}}</ref> on the key server concept.

To replace the aging Certificate Server, an [[LDAP]]-based key server was redesigned at [[Network Associates]] in part by [[Randy Harmon]] and [[Len Sassaman]], called PGP Keyserver 7. With the release of PGP 6.0, LDAP was the preferred key server interface for Network Associates’ PGP versions. This LDAP and LDAPS key server (which also spoke HKP for backwards compatibility, though the protocol was (arguably correctly) referred to as “HTTP” or “HTTPS”) also formed the basis for the PGP Administration tools for private key servers in corporate settings, along with a [[Database schema|schema]] for [[Fedora Directory Server|Netscape Directory Server]].

PGP Keyserver 7 was later replaced by the new [[PGP Corporation]] PGP Global Directory of 2011 which allows PGP keys to be published and downloaded using HTTPS or LDAP.<ref>{{cite web | url=https://keyserver.pgp.com/vkd/VKDHelpPGPCom.html | title=PGP Global Directory - Terms and Conditions }}</ref>