ARCFour  RC4 is a stream cipher developed by Ron Rivest. 
CSPRNG  An entropy poolbased pseudorandom number generator based on the PRNG in
Peter Gutmann's cryptlib (http://www.cs.auckland.ac.nz/~pgut001/cryptlib/).

Fortuna  The Fortuna continuouslyseeded pseudorandom number generator. 
Fortuna.Generator  The Fortuna generator function. 
ICMGenerator  Counter Mode is a way to define a pseudorandom keystream generator using a
block cipher. 
PBKDF2  An implementation of the key derivation function KDF2 from PKCS #5:
PasswordBased Cryptography (PBE). 
PRNGFactory  A Factory to instantiate pseudo random number generators.

UMacGenerator  KDFs (Key Derivation Functions) are used to stretch usersupplied key
material to specific size(s) required by high level cryptographic primitives.
