COMPUTER READABLE RECORDING MEDIUM WITH SELF-PROTECTING DOCUMENT RECORDED THEREON AND METHOD FOR USING SELF-PROTECTING DOCUMENT

摘要

PROBLEM TO BE SOLVED: To make it difficult to obtain an electronically distributed document in an illegally usable form during decryption processing and interpretation processing.

SOLUTION: A system and method for the secure distribution of electronic documents reduces the likelihood of unauthorized reproduction and redistribution by either authorized or unauthorized recipients. A self-protecting document (SPD) contains an encrypted document as well as a secure set of permissions and the software necessary to process the document; full decryption of the document is performed as late as possible so as to minimize the possibility of intercepting the document before it has been fully rendered to screen or to paper.

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