Design of DHCP Protocol Based on DH Encryption Algorithm

Dynamic host configuration protocol(DHCP protocol) has successfully solved the management and insufficiency problem of network address.But the lack of security control in DHCP protocol makes insecurity in address distribution.This paper presents an improved DHCP protocol based on user visiting control mechanism and DH encryption algorithm,discusses its concrete implementation in the four stages of address requiring,secret key negotiating,address distributing and address releasing,and analyses its security performance.The work in this paper offers reference to applications with high security requirement.