International Association for Cryptologic Research

International Association
for Cryptologic Research


Paper: Dragon-MAC: Securing Wireless Sensor Networks with Authenticated Encryption

Shu Yun Lim
Chuan Chin Pu
Hyo Taek Lim
Hoon Jae Lee
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Abstract: Sensor networks offer economically viable monitoring solutions for a wide variety of applications. In order to combat the security threats that sensor networks are exposed to, a cryptography protocol is implemented at sensor nodes for point-to-point encryption between nodes. Disclosure, disruption and deception threats can be defeated by authenticating data sources as well as encrypting data in transmission. Given that nodes have limited resources, symmetric cryptography that is proven to be efficient for low power devices is implemented. Data protection is integrated into a sensor's packet by the means of symmetric encryption with the Dragon stream cipher and incorporating the newly designed Dragon-MAC Message Authentication Code. The proposed algorithm was designed to employ some of the data already computed by the underlying Dragon stream cipher for the purpose of minimizing the computational cost of the operations required by the MAC algorithm. In view that Dragon is a word based stream cipher with a fast key stream generation, it is very suitable for a constrained environment. Our protocol regarded the entity authentication and message authentication through the implementation of authenticated encryption scheme in Telos B wireless sensor nodes.
  title={Dragon-MAC: Securing Wireless Sensor Networks with Authenticated Encryption},
  booktitle={IACR Eprint archive},
  keywords={Authenticated encryption, Sensor network security, Dragon stream cipher, eStream project, Telos B sensor node},
  note={ 13669 received 31 May 2007, last revised 5 Jun 2007},
  author={Shu Yun Lim and Chuan Chin Pu and Hyo Taek Lim and Hoon Jae Lee},