摘要:
A system includes an image formation apparatus, an image retrieval server, and image storage servers, and a network for connecting them. The image formation apparatus forms an image based on image data, records the image data in a predetermined storing location on the image storage servers, converts the image data under a predetermined rule to generate an image identification information as a key in order to read the image data from the storing location, and outputs the image identification information. Upon reception of an image data retrieval request together with an image identification information, the image retrieval server determines that the image data whose result of conversion under the predetermined rule is equal to the image identification information, among at least one image data stored in a predetermined storing location on the image storage servers, is the image data to be retrieved, and outputs its information.
摘要:
An electronic ticket system for virtually preventing forgery, copying and other unauthorized uses of electronic tickets; for proving to a third party the contents of an electronic ticket contested between a user and an issuing party; and for protecting users' anonymity upon ticket use. The system comprises a ticket creating and issuing device, a ticket proving device, and a ticket verification device. A ticket creating unit in the ticket creating and issuing device creates specifications of a ticket representing a predetermined service or product in response to a ticket creating request. A ticket issuing unit of the ticket creating and issuing device, in reply to a ticket issuing request, issues the corresponding ticket using as input a ticket identifier, a proving identifier, a ticket specification identifier, and ticket added information. The ticket proving device gets a ticket issued by the ticket issuing unit and communicates with the ticket verification device to prove the possession of the ticket. The ticket verification device has a ticket verifying procedure and, on getting the ticket identifier created by the ticket creating unit, communicates with the ticket proving device to verify the ticket.
摘要:
The document management server includes an identification information providing unit that receives a request to obtain identification information required for accessing a document from a client, generates the identification information for the received request, and sends the generated identification information to the client; a relation information management unit that manages relation information of the requested document and the identification information generated for the request; and a history information management unit that manages information on the client who has sent the request, associating with the identification information.
摘要:
There is provided a document management server including a receiving unit that receives an access request and a first ID representing a document to be an object of the access request, an ID processing unit that issues, when an operation is performed on the document in response to the access request, a second ID corresponding to the operation, and records a derivation relationship having the second ID as a child of the first ID, an attribute recording unit that records attribute information relating to the operation by association with the first ID or the second ID, and a response data provider unit that provides, when the document is provided to the client in response to the access request, response data including attribute information associated with at least one ID appearing in a path from the received ID accompanying the access request to a root of a derivation relationship.
摘要:
An electronic-document management system includes an acquisition unit, an edit unit, first and second storage units, a generation unit and an output unit. The acquisition unit acquires a target electronic document. The edit unit edits the acquired target electronic document. The first storage unit stores the target electronic document edited by the edit unit and a feature value of the edited target electronic document in association with each other. The generation unit generates meta-information of the edited target electronic document, which comprises a feature value of the edited target electronic document. The second storage unit stores the meta-information of the edited target electronic document and a feature value of the meta-information of the edited target electronic document in association with each other. The output unit outputs the feature value of the meta-information of the edited target electronic document as reference information of the edited target electronic document.
摘要:
A document handling history management system, which includes: a first calculation section that calculates a first value based on a document which is an object of referencing operation; an operation history information generation section that generates operation history information that includes the first value; a second calculation section that calculates a second value based on the operation history information; a referencing information generation section that generates referencing information of the document, the referencing information being used for the referencing operation and including the second value; a reading section that reads first attribute information of the document, the first attribute information being to be rewritten to second attribute information when the referencing operation of the document is performed; a storing section that stores setting information in the first attribute information; and a rewriting section that rewrites the second attribute information to the first attribute information upon termination of the referencing operation.
摘要:
There is provided a document management system including a document storage that stores an electronic document and a content identifier; a management information storage that stores management information, which includes a content identifier of an electronic document and a management identifier of a parent document of the electronic document, and a management identifier of the electronic document; an obtaining unit that obtains management information corresponding to a requested management identifier from the management information storage and obtains from the document storage a first electronic document corresponding to a content identifier in the obtained management information; and a print management unit that registers management information, of a medium document which is a printed result of the first electronic document, which includes a management identifier of the first electronic document and a management identifier of the medium document, and that writes the management identifier of the medium document on the medium document.
摘要:
The document management server includes an identification information providing unit that receives a request to obtain identification information required for accessing a document from a client, generates the identification information for the received request, and sends the generated identification information to the client; a relation information management unit that manages relation information of the requested document and the identification information generated for the request; and a history information management unit that manages information on the client who has sent the request, associating with the identification information.
摘要:
A burden caused by handling a large number of unique identifying information pieces such as authentication keys is to be lightened from both the user side and the protector side such as application creators. A proof data verification device sends authentication data to a proof data generation device. Signature data generation means and presignature data generation means in the proof data generation device cooperate with each other to generate proof data (a signature based on a discrete logarithm problem) from the received authentication data as well as held user unique identifying information and an access ticket, and send the proof data back to the proof data verification device. Verification means in the proof data verification device verify the signature, and if the verification is successful, the execution of program is allowed.
摘要:
A server apparatus is connected to a client apparatus and a database that stores an information element network including an information element as node. The server apparatus includes: a receiving unit that receives from the client apparatus a request to access a specific information element included in the information element network; an obtaining unit that obtains from the client apparatus information concerning an access history for the information element; and a determining unit that determines whether the client apparatus previously accessed an information element included in the information element network and is included in upper nodes with respect to the specific information element, and employs the determined result to ascertain whether to permit or deny access to the specific information element requested by the client apparatus.