Title :
TinyStream: A Lightweight and Novel Stream Cipher Scheme for Wireless Sensor Networks
Author :
Chen, Tieming ; Ge, Liang ; Wang, Xiaohao ; Cai, Jiamei
Author_Institution :
Coll. of Comput. Sci. & Tech., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
Implementation performance and key randomness are two key issues for stream cipher systems. In this paper, a lightweight stream cipher with good randomness of key stream is firstly proposed. It utilizes a novel proposed model named tree parity machine to generate streams. The most superiority of our scheme is that 128 bits could be generated based on one time of state rotation, and it passes the full ENT randomness test. Then, implementation of the proposed scheme for wireless sensor networks, Tiny Stream, is presented. Tiny Stream is based on TinySec protocols, and just costs 65024 bytes ROM and 1659184 bytes RAM with a subtle rather than that of TinySec. Due to the simple structure and small computation, Tiny Stream is considered to be good for secure communication applications in the resource constraint WSNs.
Keywords :
cryptographic protocols; trees (mathematics); wireless sensor networks; RAM; ROM; TinySec protocols; TinyStream; full ENT randomness test; key randomness; stream cipher scheme; tree parity machine; wireless sensor networks; Stream Cipher; TinyOS; TinySec; Tree Parity Machine; Wireless Sensor Networks;
Conference_Titel :
Computational Intelligence and Security (CIS), 2010 International Conference on
Conference_Location :
Nanning
Print_ISBN :
978-1-4244-9114-8
Electronic_ISBN :
978-0-7695-4297-3
DOI :
10.1109/CIS.2010.121