earticle

영어

The proposed broadcast authentication protocols for wireless sensor networks can be divided into two ategories: protocols based on digital signature and protocols based on improved message authentication code. his paper implements and evaluates the performance of two broadcast authentication: TinyECC, which is ased on ECDSA, and GBA, which is based on improved MAC. Through analysis of the performance ifference of the two protocols, this paper proposes a hybrid broadcast authentication protocol (HBA). HBA chieves an appropriate compromise of security and performance according to packet value. The analysis and xperiments show that HBA is efficient and practical.