Credits go to (in no particular order):

anadyr, daelstorm, SmackleFunky, (va)*10^3 and Wretched
  for supplying me with feedback, risking their boxes and
  quite possibly their lives and sanity while testing my
  not always bug-free code


alexbk
  for reverse-engineering most of the SoulSeek protocol and
  creating his PySoulSeek client


Nir
  for creating and maintaining the SoulSeek network



The people that wrote:


The AES cipher module used in the Linux kernel

The SHA256 hash module used in the Linux kernel

Solar Designer
  for creating the public domain md5 hash routines

Paul Kocher
  for his SHA-1 hash routines



And last, but certainly not least, all the users of both Nicotine and
Museek.
