Research on Large-Scale Authentication Architecture and Key Management Protocol Based on Combined Symmetric Key

A large-scale authentication architecture and key management protocol based on combined symmetric key (CSK) algorithm are proposed. Through the CSK algorithm and smart card technology, the authentication process can be finished inside the chips, and the management of large-scale keys can be simplified to the management of small-scale key seeds. The security of the proposed architecture is analyzed and the test data are shown. It is obvious that the large-scale identity authentication and management abilities are improved while the building cost is reduced evidently with the application of the proposed infrastructure; it is an applicable solution for real-name authentication network.