Invention Grant
- Patent Title: Linear view-change BFT
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Application No.: US16898055Application Date: 2020-06-10
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Publication No.: US11620195B2Publication Date: 2023-04-04
- Inventor: Ittai Abraham , Dahlia Malkhi , Guy Golan Gueta
- Applicant: VMware, Inc.
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/20 ; H04L9/32 ; H04L9/40 ; H04L67/1097

Abstract:
Techniques for implementing linear view-change in a Byzantine Fault Tolerant (BFT) protocol running on a distributed system comprising n replicas are provided. According to one set of embodiments, at a time of performing a view-change from a current view number v to a new view number v+1, a replica in the n replicas corresponding to a new proposer for new view number v+1 can generate a PREPARE message comprising a single COMMIT certificate, where the single COMMIT certificate is the highest COMMIT certificate the new proposer is aware of. The new proposer can then transmit the PREPARE message with the single COMMIT certificate to all other replicas in the n replicas.
Public/Granted literature
- US20200301794A1 Linear View-Change BFT Public/Granted day:2020-09-24
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