Poul-Henning Kamp

Poul-Henning Kamp

Poul-Henning Kamp (sometimes known as "PHK") is a Danish FreeBSD developer, responsible for implementation of the widely used MD5 password hash algorithm, a vast quantity of systems code, including the FreeBSD GEOM storage layer, GBDE cryptographic storage transform, part of the UFS2 file system implementation, FreeBSD Jails, malloc library, clock/time code, and the Beerware license.

Poul-Henning Kamp's dispute with electronics manufacturer D-Link over a matter of NTP vandalism was resolved on 27 April 2006.

Poul-Henning is also the lead architect and developer for the Varnish cache project.

Poul-Henning is responsible for the widespread use of the term bikeshed colour to describe contentious but otherwise meaningless technical debates over trivialities in open source projects. This term is in use in, among others, the FreeBSD Project, the Perl Project, and the Subversion Project. (Note that colour was not in fact a feature of Parkinson's original example.)

Publications

A selection of publications:

* [http://www.usenix.org/publications/library/proceedings/usenix98/freenix/kamp.ps USENIX ATC 1998 FREENIX track, "malloc(3) Revisited"]
* [http://www.usenix.org/events/bsdcon03/tech/kamp.html USENIX BSDCon 2003, GBDE-GEOM Based Disk Encryption]
* [http://www.usenix.org/publications/library/proceedings/bsdcon02/kamp.html USENIX BSDCon 2002, Rethinking /dev and devices in the UNIX kernel]
* [http://www.acmqueue.org/modules.php?name=Content&pa=showpage&pid=170 ACM Queue: Building Systems to be Shared Securely]

External links

* [http://people.freebsd.org/~phk/ people.freebsd.org homepage]
* [http://phk.freebsd.dk/ phk.freebsd.dk homepage]
* [http://www.version2.dk/blogs/poulhenningkamp Blog in Danish]
* [http://ing.dk/blogs/phloggen Another blog in Danish]
* [http://people.freebsd.org/~phk/dlink/ Resolution of D-Link Dispute]
* [http://www.varnish-cache.org Varnish cache]
* [http://a.mongers.org/clueful/1999-phk-bikeshed PHK's original Bikeshed post]


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