Elliptic Curve Integrated Encryption Scheme (ECIES) is a public key encryption system proposed by Victor Shoup in 2001.

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ECIES: Purpose of optional shared information?

According to Wikipedia the ECIES algorithm has two optional shared information $S_1$ and $S_2$. They are used as follows: Generate a random shared secret $Z$ according to ECIES, which will never be ...
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Encryption using elliptic curves

What is currently the best way to actually encrypt a message using elliptic curves? I'm looking for an algorithm like ElGamal, but more efficient, since ElGamal outputs a tuple of two points for every ...