International Business Machines Corporation

Nikola Knezevic

Robert Beverley Basham

Wayne A Sawdon

Alessandro Sorniotti

Elli Androulaki

Christian Cachin

Harold Joseph Roberson, Ii

Martin Petermann

Marcus Brandenburger

A key-value store for storing and retrieving user files based on key-value pairs, hereafter referred to as KVPs. For each user of the key-value store, each file of a set of files of said each user is stored as one or more pairs of KVPs. Each of said one or more pairs comprises a KVP of a first type and a KVP of a second type. The KVP of the first type comprises at least a part of contents of said each file, whereas the KVP of the second type comprises metadata (and possibly attributes) of said each file. Each KVP of the second type links to one or more KVPs of the first type. Further provided are related method and computer program products.

Key-value store for managing user files based on pairs of key-value pairs

A method for providing integrity and consistency of a cloud storage service to a group of mutually trusted clients may be provided. The cloud storage service may offer a set of operations, such as read, write, update, delete in respect to stored data to the clients, whereby each client only executes its own client operations when consuming one of the set of operations of the cloud storage service, and wherein each client detects data correctness of the cloud storage service based on a protocol providing fork-linearizablity.

Securing integrity and consistency of a cloud storage service with efficient client operations

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Zurich, Switzerland

Nikola Knezevic