Key distribution protocol based on ID and ECDSA
Yanyan Chen · Jisuanji gongcheng yu sheji · 2011
To solve effectively the limitation that the elliptic curve digital signature algorithm(ECDSA) can't directly be used into the key distribution protocol,and can supply confidentiality of digital signature has not be,a new key distribution protocol based on identity(ID) and ECDSA is proposed.Considering that the ID of node is the only marker between sensor nodes,it is absolutely to embed and use this ID into the ECDSA and realize bidirectional authentication between the communication nodes and establish shared communication key by means of handshake,as the shared communication key can provide messages with duplicate protections,the protocol realizes secure communication on public channel.The correctness is verified,the security and time complexity of the new algorithm are analyzed,and this experiment indicates that the performance of protocol is obviously improved and algorithm is quite valid.