Kurma: Secure Geo-Distributed Multi-Cloud Storage Gateways

被引：3
作者：
Chen, Ming [1 ]
Zadok, Erez [1 ]
机构：
[1] SUNY Stony Brook, Stony Brook, NY 11794 USA
来源：
SYSTOR '19: PROCEEDINGS OF THE 12TH ACM INTERNATIONAL SYSTEMS AND STORAGE CONFERENCE | 2019年
关键词：
Multi-cloud; cloud storage gateways; storage security; FILE-SYSTEM;
D O I：
10.1145/3319647.3325830
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Cloud storage is highly available, scalable, and cost-efficient. Yet, many cannot store data in cloud due to security concerns and legacy infrastructure such as network-attached storage ( NAS). We describe Kurma, a cloud storage gateway system that allows NAS-based programs to seamlessly and securely access cloud storage. To share files among distant clients, Kurma maintains a unified file-system namespace by replicating metadata across geo-distributed gateways. Kurma stores only encrypted data blocks in clouds, keeps file-system and security metadata on-premises, and can verify data integrity and freshness without any trusted third party. Kurma uses multiple clouds to prevent cloud outage and vendor lock-in. Kurma's performance is 52-91% that of a local NFS server while providing geo-replication, confidentiality, integrity, and high availability.
引用
收藏
页码：109 / 120
页数：12
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