ECIES is Elliptic Curve Integrated Encryption Scheme. It a hybrid encryption scheme proposed by Victor Shoup.

ECIES is Elliptic Curve Integrated Encryption Scheme. It a hybrid encryption scheme that operates over elliptic curve fields proposed by Victor Shoup.

Integrated Encryption Schemes combine public/private key cryptography with symmetric encryption and MACs to produce an output tuple {R,C,T}, where R is a random value encrypted under the public key, C is the cipher text, and T is an authentication tag. R is further derived into independent keys to key the symmetric cipher and the MAC function.

A similar scheme is Abdalla, Bellare and Rogaway's Diffie-Hellman Integrated Encryption Scheme (DHIES), which operates over the field of integers.

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