CONTENT DISTRIBUTION STORAGE SYSTEM, METHOD FOR OBTAINING CONTENT, NODE DEVICE, AND COMPUTER READABLE MEDIUM

摘要

A content distribution storage system includes: a first transmission unit configured to transmit a special content including certificate revocation list information indicating a list of at least an invalid electronic certificate to a first node group; a second transmission unit configured to transmit identification information for identifying the special content to a second node group; and a first node device. The first node device includes: a certificate obtaining unit configured to obtain the electronic certificate; an identification information obtaining unit configured, based on the obtained electronic certificate, to obtain the identification information of the special content comprising the certificate revocation list information corresponding to the obtained electronic certificate obtained; and a special content obtaining unit configured to obtain the special content from at least one node device of the first node group which stores the special content associated with the obtained identification information.