Package request: sks-keyserver
SKS is an OpenPGP keyserver whose goal is to provide easy to deploy, decentralized, and highly reliable synchronization.
Official Website: https://code.google.com/p/sks-keyserver/
Releases: https://code.google.com/p/sks-keyserver/downloads/list
(from redmine: issue id 1071, created on 2012-04-02)