ICE stands for Information Concealment Engine.
It is a 64-bit block cipher, with key size any multiple of 64 bits.
snow exploits the steganographic nature
of whitespace. Locating trailing whitespace in text is
like finding a polar bear in a snowstorm (which, by the way,
explains the logo). And it uses the ICE
encryption algorithm, so the name is thematically consistent.
This web page contains a snow-concealed message, encrypted
using password "ice". If you download the HTML source for this page,
and save it to a file snow.html,
you can extract the secret message using:
snow -C -p ice snow.html
Check out the SNOW homepage at