1. Discrete Mathematics and Its Applications;G Paul,2012
2. Bluetooth, Specifications of the Bluetooth system, Version 1.1.
http://www.bluetooth.com/
3. eSTREAM, the ECRYPT Stream Cipher Project, Call for Primitives.
http://www.ecrypt.eu.org/stream/
4. Yet Another SSL (YASSL).
http://www.yassl.com
5. Golomb, S.W.: Shift Register-Sequences. Aegean Park Press, Laguna Hill (1982)