Computer device for the time-based management of digital documents

Abstract

The invention relates to a device for managing digital documents, including: a memory (3) for storing a digital document and a time stamp that includes first signatures established according to a first method and a time value; a signature generator (5) for establishing second signatures according to a second method; a time-stamp device; a signature verifier (9) for verifying that a document and a time stamp match; and a controller (11) responsible for ensuring that the signature generator (5) performs the necessary operation on the document, that the signature verifier (9) performs the necessary operation on the document and the corresponding time stamp and, in the event of a match, that the time-stamp device (7) performs the necessary operation on the second signatures with the time value.

Description

technical field [0001] The invention relates to a device for time management of digital documents. Background technique [0002] Documents of the digital type can have various contents such as music, text, images, videos, and even source codes. [0003] It may be desirable to compare digital documents, particularly with regard to their content. [0004] In cases where two digital documents are stored in the form of two different computer files, multiple comparisons can be performed almost directly. [0005] Most graphical interfaces of current operating systems indicate, for example, the amount of memory required to store a particular file. The graphical interface also displays the date the file was last modified, the date the file was created and / or the date the file was last accessed stored in the file itself. [0006] Such comparisons are crude and not very reliable: two documents with different content may have been created on the same date and have the same dimension...

AI Technical Summary

Problems solved by technology

[0027] Also in this case, the manner in which the dossier is generated from the document or documents, the algorithm used to generate the key from said dossier, and the process used to determine the token and authentication of that token may change over time. change over time

[0028] This makes claiming any ownership rights particularly tricky when, in some cases, one has to go back to strategies that can sometimes date back to previous years

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