E. Morais, D. Aranha, and R. Dahab.
"Achieving CCA1-security in homomorphic encryption", in <em>Anais do I Encontro de Teoria da Computação</em>, Porto Alegre, 2016, pp. 804-807, doi: <a href="https://doi.org/10.5753/etc.2016.9829">https://doi.org/10.5753/etc.2016.9829</a>.