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.