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Creators/Authors contains: "Pavalovic, D"

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  1. Security protocols enable secure communication over insecure channels. Privacy proto- cols enable private interactions over secure channels. Security protocols set up secure channels using cryptographic primitives. Privacy protocols set up private channels using secure channels. But just like some security protocols can be broken without breaking the underlying cryptography, some privacy protocols can be broken without breaking the underlying security. Such privacy attacks have been used to leverage e-commerce against targeted advertising from the outset; but their depth and scope became appar- ent only with the overwhelming advent of influence campaigns in politics. The blurred boundaries between privacy protocols and privacy attacks present a new challenge for protocol analysis. Covert channels turn out to be concealed not only below overt chan- nels, but also above: subversions, and the level-below attacks are supplemented by sublimations and the level-above attack 
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