- Patent Title: Method and system for byzantine fault-tolerance replicating of data
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Application No.: US16081429Application Date: 2016-11-25
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Publication No.: US10797877B2Publication Date: 2020-10-06
- Inventor: Ghassan Karame , Wenting Li , Jian Liu , Nadarajah Asokan
- Applicant: NEC Laboratories Europe GmbH
- Applicant Address: JP Tokyo
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Leydig, Voit & Mayer, Ltd.
- International Application: PCT/EP2016/078883 WO 20161125
- International Announcement: WO2018/095540 WO 20180531
- Main IPC: H04L9/32
- IPC: H04L9/32 ; G06F11/14 ; H04L9/08 ; H04L9/30

Abstract:
A method for byzantine fault-tolerance replicating of data on a plurality of n servers includes performing a preprocessing procedure. The n servers include one primary node (PN) and n−1 backup nodes (BN), wherein f servers may arbitrarily fail, and wherein all n servers have a trusted computing entity (TCE). The preprocessing procedure is performed by the TCE of the PN and includes computing a random secret value for a unique, monotonic, sequential counter (UMSC) to be assigned with a request message for requesting an operation to be performed, computing a commitment for the random secret value and the UMSC, and splitting the random secret value into a plurality of shares. The preprocessing procedure further includes computing a server-specific authenticated encryption of each share, and providing the computed server-specific shares and the computed commitment to the respective servers.
Public/Granted literature
- US20190386829A1 METHOD AND SYSTEM FOR BYZANTINE FAULT - TOLERANCE REPLICATING OF DATA Public/Granted day:2019-12-19
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