Hiding from Whom?

: Hiding from Humanity

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Hiding from Big Brother

The present state of Internet surveillance and censorship has prompted the development of sophisticated anonymization and encryption protocols. The importance of anonymity and data encryption has already set foot in people’s minds. In this paper, we discuss why it is necessary to not only hide the contents and involved parties of communications, but also the communication itself. We present som...

Lessons for whom, from whom? The transition from socialism in China and Central Eastern Europe

Non-committing Encryption from Φ-hiding

A multiparty computation protocol is said to be adaptively secure if it retains its security even in the presence of an adversary who can corrupt participants as the protocol proceeds. This is in contrast to the static corruption model where the adversary is forced to choose which participants to corrupt before the protocol begins. A central tool for constructing adaptively secure protocols is ...

On hiding information from an oracle

We consider the problem of computing with encrypted data. Player A wishes to know the value f(x) for some x but lacks the power to compute it. Player B has the power to compute f and is willing to send f(y) to A if she sends him y, for any y. Informally, an encryption scheme for the problem f is a method by which A, using her inferior resources, can transform the cleartext instance x into an en...