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#News(Security) [ via IoTGroup ]
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Zanzibar: Google’s Consistent, Global Authorization System
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Abstract
Determining whether online users are authorized to access digital objects is central to preserving privacy.
This paper presents the design, implementation, and deployment of Zanzibar, a global system for storing and evaluating access control lists.
Zanzibar provides a uniform data model and configuration language for expressing a wide range of access control policies from hundreds of client services at Google, including Calendar, Cloud, Drive, Maps, Photos, and YouTube.
Its authorization decisions respect causal ordering of user actions and thus provide external consistency amid changes to access control lists and object contents.
Zanzibar scales to trillions of access control lists and millions of authorization requests per second to support services used by billions of people.
It has maintained 95th-percentile latency of less than 10 milliseconds and availability of greater than 99.999% over 3 years of production us
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AutoTextExtraction by Working BoT using SmartNews 1.0299999999 Build 26 Aug 2019
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