Alcance
This document specifies the following mechanisms for homomorphic encryption.— Exponential ElGamal encryption;— Paillier encryption.For each mechanism, this document specifies the process for:— generating parameters and the keys of the involved entities;— encrypting data;— decrypting encrypted data; and— homomorphically operating on encrypted data.Annex A defines the object identifiers assigned to the mechanisms specified in this document. Annex B provides numerical examples.