ECC in Python--Encrypt to Multiple Public Keys?

Question

I am trying to simultaneously encrypt a message to multiple public keys using ECC in python. The modules I have tried include a number of seccure-based modules, along with https://pypi.python.org/pypi/ecc

Can anyone help me with this? To be clear, I am trying to avoid encrypting a separate ciphertext for each public key, which is a linear expansion factor; ECC can achieve far better.

(sks-ecc is the only implementation I've seen to succeed at this at all, and there doesn't seem to be availability in python.)

Answer 1

It seems like, under the assumption that I'm even correct that this property of ECC is possible, which the open-source corner of the internet seems to be trying to convince me is false even though I've worked with it myself, it's probably patented, so I'm giving up and just doing the linear expansion.