Abstract:

Security is a challenge in wireless sensor networks. The potential security threats, the key issues and design principles for achieving the security of wireless sensor network are analyzed. Integrated secure system architecture about sensor node to secure sensor network is presented. As a conclusion, the security requirements, such as confidentiality, integrity, authentication, freshness are provided while consuming little system resource and the impact on the whole network’s security are minimized after some sensor nodes are captured and compromised as well.

Key words: wireless sensor network, security, threats, design principle