# All Questions

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### How to Exchange Random Coin Flips between Two Untrusted Parties [duplicate]

I'm not sure if this belongs here, but my friend and I were wondering if there was a good algorithm to exchange random coin flips to make some random decision between two untrusted parties without the ...
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### Is there are code hidden in Wired Magazine's December 2014 Issue?

There seem to be several hints that there's more to Wired Magazine, December 2014 (Issue 22.12) that meets the eye. In his Letter from the Editor, Scott Dadich says: I’ll refrain from spoiling ...
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### Swap $x$ and $k$ in GGM construction

I'm studying the Goldreich-Goldwasser-Micali construction from pseudo-random generators to pseudo-random functions. In this specific construction, assume $G:\{0,1\}^n\rightarrow \{0,1\}^{2n}$ is a ...
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### Generating interactive, secure multiple ECC key pairs deterministically

In Elliptic Curve Cryptography (ECC) assuming user A has a private public key pair of $S$, $P$ accordingly with generator point $G$ which as we know is: $$P=S*G$$ Assuming that user A wants to ...