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. 21, 2018
Filed:
Oct. 18, 2013
Nec Europe Ltd., Heidelberg, DE;
Dan Dobre, Munich, DE;
Ghassan Karame, Heidelberg, DE;
NEC Corporation, Tokyo, JP;
Abstract
Methods and systems for storing a file on a plurality of servers are provided. The number of servers is n and the maximum number of servers which may fail is t. A predefined number b of byzantine failures and a number t−b of crashes of the servers is contemplated, where n equals 2t+b+1. The file is divided into a plurality of chunks, where the number of chunks is equal to or greater than the number of servers. The chunks of the file are sent to the n servers, where at least one chunk is sent to each server. The number of replies r from the n servers indicating successful storage of the respective chunks are determined. The number of replies r matching a terminating condition is checked. A new file based is generated. The process is repeated for the new file.