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.