Provably Robust Decisions based on Potentially Malicious Sources of Information
Provably Robust Decisions based on Potentially Malicious Sources of Information
复制标题
基于潜在恶意信息源的可证明稳健的决策
DOI:
10.1109/csf49147.2020.00036
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Muller T
中科院分区:
文献类型:
--
作者:
Muller T
Sometimes a security-critical decision must be made using information provided by peers. Think of routing messages, user reports, sensor data, navigational information, blockchain updates. Attackers manifest as peers that strategically report fake information. Trust models use the provided information, and attempt to suggest the correct decision. A model that appears accurate by empirical evaluation of attacks may still be susceptible to manipulation. For a security-critical decision, it is important to take the entire attack space into account. Therefore, we define the property of robustness: the probability of deciding correctly, regardless of what information attackers provide. We introduce the notion of realisations of honesty, which allow us to bypass reasoning about specific feedback. We present two schemes that are optimally robust under the right assumptions. The “majority-rule” principle is a special case of the other scheme which is more general, named “most plausible realisations”.
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10.1145/1529282.1529575
发表时间:
2009-03
期刊:
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影响因子:
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作者:
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通讯作者:
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影响因子:
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通讯作者:
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影响因子:
22.7
作者:
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通讯作者:
SHAMIR, A