Patent ID: 8219806

Claim:
A management system comprising a plurality of terminal apparatuses each having a security function module with a cipher processing function and a management apparatus connected to said plurality of terminal apparatuses to be communicable therewith, said management apparatus comprising: a unit that relates a terminal identifier identifying each terminal apparatus with both a restoration user information file related to the security function module provided in said each terminal apparatus, the restoration user information file being a backup data file to be used for restoring an environment of the corresponding security function module, and a restoration user information file cipher key related to a security function module of said each terminal apparatus; a storage unit that stores, for all of said plurality of terminal apparatuses, said terminal identifiers, by relating said terminal identifier with respective restoration user information files and respective restoration user information file cipher keys; and a transmission unit that transmits, to one of said plurality of terminal apparatuses, a restoration user information file cipher key corresponding to said one of said plurality of terminal apparatuses in response to a request from said one of said plurality of terminal apparatuses for the restoration user information file cipher key, and transmits, to said one of said plurality of terminal apparatuses, a restoration user information file corresponding to said one of said plurality of terminal apparatuses in response to a second request from said one of said plurality of terminal apparatuses for the restoration user information file, a restoration user information file cipher key authentication unit for making an authentication on acquisition of the restoration user information file cipher key, when the authentication on the acquisition of the restoration user information file cipher key is made by said restoration user information file cipher key authentication unit, said transmission unit transmits the restoration user information file cipher key, and each of said terminal apparatuses comprising a restoration unit that restores user security information related to said security function module on the basis of the restoration user information file cipher key transmitted from said transmission unit of said management apparatus and said restoration user information file related to said security function module, wherein the authentication on the acquisition of the restoration user information file cipher key is made with respect to persons with authority and, when a plurality of persons of the persons with authority make the authentication on the acquisition of the restoration user information file cipher key in said restoration user information file cipher key authentication unit of said management apparatus, said transmission unit transmits the restoration user information file cipher key.