The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2016
Filed:
May. 29, 2012
Filippo Vernia, La Spezia, IT;
Davide Tazzari, Arezzo, IT;
Filippo Vernia, La Spezia, IT;
Davide Tazzari, Arezzo, IT;
ABB Technology AG, Zurich, CH;
Abstract
A method for transmitting a file from a file source () to a plurality of electronic devices () is described herein. To each electronic device are associated an encryption key and a unique identifier code. According to the method described herein, to the plurality of electronic devices are transmitted: a file encrypted by means of a session key, and a plurality of encrypted session keys, each paired with a respective electronic device, with whose encryption key the respective encrypted session key was obtained; Moreover, each electronic device decrypts its own encrypted session key using the respective encryption key to obtain the decrypted session key, and decrypts the encrypted file by means of the decrypted session key.