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.

Date of Patent:
Dec. 10, 2019

Filed:

Jul. 18, 2017
Applicant:

Vmware, Inc., Palo Alto, CA (US);

Inventors:

Ittai Abraham, Tel Aviv, IL;

Dahlia Malkhi, Palo Alto, CA (US);

Alexander Spiegelman, Yoknem, IL;

Guy Golan Gueta, Herzliya, IL;

Assignee:

VMware, Inc., Palo Alto, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/20 (2006.01); G06F 11/14 (2006.01); G06Q 20/38 (2012.01); H04L 9/06 (2006.01); G06Q 20/06 (2012.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
G06F 11/2028 (2013.01); G06F 11/1479 (2013.01); G06F 11/2048 (2013.01); G06Q 20/06 (2013.01); G06Q 20/382 (2013.01); H04L 9/0618 (2013.01); H04L 9/3239 (2013.01); H04L 9/3255 (2013.01); G06F 11/202 (2013.01); G06F 11/2041 (2013.01); G06Q 2220/00 (2013.01); H04L 2209/56 (2013.01);
Abstract

The disclosure describes a failure-free execution agreement that includes n=3F+1 parties acting as replicas, and a number of parties acting as clients. One replica is designated as a primary. At most F replicas are presumed Byzantine faulty. The basic agreement protocol proceeds in three rounds: (1) client sends a request to the primary, who sends to all replicas; (2) each replica sends a threshold-part signature on hash to a first collector; (3) the collector combines the threshold-parts into a single signature and sends to all 3F+1 replicas which then commit and send to a second collector. The client proceeds when a signed block of requests arrives from the second collector.


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