`EVP_EncryptFinal`/`EVP_DecryptFinal` is not provided in BoringSSL. Perhaps `EVP_EncryptFinal_ex`. Found in https://github.com/openresty/openresty/issues/556
EVP_EncryptFinal/EVP_DecryptFinalis not provided in BoringSSL. PerhapsEVP_EncryptFinal_ex.Found in openresty/openresty#556