The invention discloses a dynamic migration
access control technology design method based on a
heterogeneous network. The method includes the following steps: establishing a
system architecture of a mutual trust
system and judging a mobile node; establishing a security access model of a heterogeneous mobile network; and authenticating security access of the heterogeneous mobile network. The architecture disclosed by the invention consists of a
client and a
security service system installed on a trusted user node, and thus the
security service system can acquire the real-time state of the mobile node, filter the credibility of the node, know the failure or abnormal state of the mobile node in real time, and further terminate the provision of services for the node; through modeling methods,various security access methods are analyzed and compared to find a more secure and more efficient
access method; and meanwhile, a trust update
algorithm of the system can be optimized, the
system information can be periodically updated, and the security threats actually operated in environments can be mitigated.