The Science of Quantitative Information Flow
The Science of Quantitative Information Flow
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定量信息流科学
DOI：
10.1007/978-3-319-96131-6
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Geoffrey Smith
中科院分区：
文献类型：
--
作者：
M. Alvim;K. Chatzikokolakis;Annabelle McIver;Carroll Morgan;C. Palamidessi;Geoffrey Smith
信息流是信息从源（知道信息）到目标（还不知道信息）的传输。在历史上，研究这个主题有时是为了阻碍心流（例如几千年前的凯撒密码），有时是为了促进心流（例如香农在20世纪40年代的工作）。然而，通常情况下，目标是两者的谨慎混合：让信息流向那些需要知道它的人，而不让那些不应该知道它的人知道。这是我们当代观点的焦点--促进一些信息流，阻碍另一些信息流--我们主要（但不是唯一）关注的是计算机系统。但首先：现在有什么特别的？信息流安全是当今的一个关键问题，因为最近的技术发展和他们的-很大程度上不受控制-蔓延到许多人手中：从日常家庭用户到超级熟练的黑客，以及世界各地。数据比以往任何时候都被收集（智能手机，监控摄像头，“忠诚”卡）;网络然后使其传输到未知的（或意外的）目的地;强大的公司和政府代理人通过收集和分析这些数据获得经济和/或政治利益。当然，还有罪犯。
Information Flow is the transfer of information from a source (who knows the information) to a target (who does not yet know it). In history, that topic has sometimes been studied in order to impede flow (eg Caesar’s Cipher from millennia ago), and sometimes to facilitate it (eg Shannon’s work in the 1940’s). Usually, however, the aims are a careful mixture of the two: to let information flow to those who need to know it, but to keep it from those who must not have it. That is the focus of our contemporary perspective–facilitate some flows, impede others–and our main (but not exclusive) concern here is computer systems.But first: what is so special about now? Information-flow security is a critical problem today because of recent technological developments and their–largely uncontrolled–spread to many hands: all the way from everyday home users to super-skilled hackers, and all over the earth. Data is being collected more than ever before (smart phones, surveillance cameras,“loyalty” cards); networks then enable its transmission to unknown (or unintended) destinations; and powerful corporate and governmental agents gain financial and/or political benefits by collecting and analyzing that data. And, of course, there are the criminals.