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:
Oct. 29, 2013
Filed:
Jan. 16, 2013
Ncrypted Cloud Llc, Boston, MA (US);
Nicholas Stamos, Belmont, MA (US);
Igor Odnovorov, Walpole, MA (US);
nCrypted Cloud LLC, Boston, MA (US);
Abstract
Seamless, secure, private, collaborative file synchronization across trust boundaries, typically as a companion to a store and sync file service. Information needed to recover a file is stored within the file itself, without giving away secret data. User specific personal keys are preferably only stored on the users' device(s). A unique ID is also created for each protected file; a password is generated that depends on (a) a key value that can either be (i) the user's personal key in the case of a file that is to be private or (ii) a shared key in the case of a file that is to be shared with other users, and (b) the unique file ID. The password is then encrypted using a recovery key and also stored in the file itself. The file is secured using a format that supports password-based content encryption.