Bundesdruckerei Gmbh

Hendrik Graupner

Jörg Fischer

Markus Tietke

Maxim Schnjakin

Philipp Berger

Stefan TRÖLENBERG

Manfred Dr Paeschke

A file management server may include a processor, a network interface for operatively coupling the file management server to a user computer system and to memory services via a network. The file management server includes a file management application configured to receive an authorisation enquiry of the user computer system to store file fragments of a file via the network in a plurality of the memory services; and in response to the receipt of the authorisation enquiry, request an authorisation token from each of the memory services and forward, to the user computer system, authorisation tokens formed as URLs and obtained in response to the request. Each URL enables direct write or direct read access to a storage space of one of the memory services identified by the URL. Metadata that allows reconstruction of the file from the stored file fragments is protected against access by the memory services.

Distributed data storage by means of authorisation token

The invention relates to a method for storing data, wherein the method, in order to store a file (), comprises: &#x2014;automatic generation () of a distribution schedule (); &#x2014;performance () of an error correction method, which is specified in the distribution schedule, for generating file fragments from the file by a user computer system; &#x2014;sending () of an authorisation enquiry () for storing the file fragments in the memory services (SD, SD-SD) identified in the distribution schedule from the user computer system to a file management server via a network; &#x2014;in response to reception of the authorisation enquiry by the file management server, requesting () of an authorisation token by the file management server from each of the memory services identified in the distribution schedule and forwarding () of the authorisation token () obtained in response to the request to the user computer system by the file management server; and &#x2014;storage () of the generated file fragments in the storage media (SM, SM-SM) of the identified memory services by means of authorisation verification by the authorisation token by means of the user computer system bypassing the file management server; wherein metadata () that permit the reconstruction of the file from the stored file fragments are stored in the user computer system and/or the file management server and are protected against access by the memory services.

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Berlin, Germany

Hendrik Graupner