These PLIST files have been autogenerated by mk/haskell.mk using
HS_UPDATE_PLIST=yes during a bulk build. They will help to track changes
to the packages. The Haskell packages didn't have PLIST files because
their paths contained package hashes. These hashes are now determined by
mk/haskell.mk, which makes it easy to generate easy to read PLIST files.
The hackage security library provides both server and client utilities
for securing the Hackage package server
(http://hackage.haskell.org/). It is based on The Update Framework
(http://theupdateframework.com/), a set of recommendations developed
by security researchers at various universities in the US as well as
developers on the Tor project (https://www.torproject.org/).
The current implementation supports only index signing, thereby
enabling untrusted mirrors. It does not yet provide facilities for
author package signing.