CoSMeDis: A Distributed Social Media Platform with Formally Verified Confidentiality Guarantees
CoSMeDis: A Distributed Social Media Platform with Formally Verified Confidentiality Guarantees
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CoSMeDis:具有正式验证的保密保证的分布式社交媒体平台
DOI:
10.1109/sp.2017.24
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Bauereiss T
中科院分区:
文献类型:
--
作者:
Bauereiss T
We present the design, implementation and information flow verification of CoSMeDis, a distributed social media platform. The system consists of an arbitrary number of communicating nodes, deployable at different locations over the Internet. Its registered users can post content and establish intra-node and inter-node friendships, used to regulate access control over the posts. The system's kernel has been verified in the proof assistant Isabelle/HOL and automatically extracted as Scala code. We formalized a framework for composing a class of information flow security guarantees in a distributed system, applicable to input/output automata. We instantiated this framework to confidentiality properties for CoSMeDis's sources of information: posts, friendship requests, and friendship status.
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