US 9,519,800 B2 · Device and method for online storage, transmission device and method, and receiving device and method

Abstract

A device and a method for online storage, device and method for searching for similar content, a device and a method of transmission and a device and a method. Encrypted data is saved at a provider of online services. With the encrypted data, encrypted hashing data is saved with a public key and the content to save is encrypted with the encrypted hash. This advantageously enables data duplication at the online service provider to be prevented while preserving the private life of the users of the service. In order to search for content similar to reference multimedia data, fingerprints are also saved at the service provider. In order to limit the number of false positives returned, the fingerprint can further contain a search fingerprint, an encrypted selection fingerprint.

Claims12

Dependent claims

A storage device for storing multimedia data comprising:

a storage configured to store said multimedia data in encrypted form as encrypted multimedia data;
said storage being further configured to store, for each of said encrypted multimedia data, an associated encrypted selection fingerprint and an associated non-encrypted search fingerprint;
said encrypted multimedia data and said encrypted selection fingerprint being encrypted using a hash value obtained by hashing of said multimedia data, said encrypted selection fingerprint and said non-encrypted search fingerprint being vectors, and said encrypted selection fingerprint being a vector of larger dimension than said non-encrypted search fingerprint.

Dependencies are inferred from the claim text.

Facts

Application

13/937,176Filed 16 Dec 2011

Priority

FR 11 501357 Jan 2011

Published

US 2014/0019765 A116 Jan 2014

Granted

13 Dec 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 21/6245
To a system of files or objects, e.g. local or distributed file system or database: protecting personal data, e.g. for financial or medical purposes
G06F 16/50
Information retrieval; Database structures therefor; File system structures therefor: of still image data
G06F 21/6218
Protecting access to data via a platform, e.g. using keys or access control rules: to a system of files or objects, e.g. local or distributed file…
G06F 21/6272
To a system of files or objects, e.g. local or distributed file system or database: by registering files or documents with a third party

Device and method for online storage, transmission device and method, and receiving device and method

Life of this patent

Device and method for online storage, transmission device and method, and receiving device and method

Life of this patent

Abstract

Claims12