cacophony[1] is a library which implements the Noise[2] protocol. Noise is a framework for cryptographic protocols based on ECDH key agreement authored by Trevor Perrin. pipes-cacophony[3] builds on cacophony to provide pipes that facilitate key agreement and secure messaging (in conjunction with, for example, pipes-network). -- John [1] http://hackage.haskell.org/package/cacophony [2] https://github.com/trevp/noise/blob/master/noise.md [3] http://hackage.haskell.org/package/pipes-cacophony