Patent ID: 8171532
Filing Date: 2012-05-01
Classification: G06F

Abstract:
1. A management apparatus comprising: a receiving unit that is configured to receive first authorization information for a first document previously issued and an issuance request requesting issuance of second authorization information for a second document, the first authorization information containing document identification information identifying at least one document configurable to accept issuance of authorization information; a verifying unit that is configured to verify an authenticity of the first authorization information received by the receiving unit; a checking unit that is configured to check, upon the verification of the authenticity of the first authorization information, whether document identification information identifying the second document as a document configurable to accept issuance of the authorization information is included in the first authorization information; an issuing unit that is configured to issue the second authorization information upon a condition that the document identification information identifying the second document as the document configurable to accept issuance of the authorization information is included in the first authorization information; and an operation restriction information managing unit that is configured to manage operation restriction information used for restricting operations on the document in correspondence with the document identification information, wherein upon a condition that the document identification information identifying the second document is not included in the first authorization information, it is judged whether the second authorization information has issued, based on the operation restriction information for the second document managed by the operation restriction information managing unit, the first authorization information includes operation permissions and validity period permissions, and at least one of the above units is embodied in a processor.