RSA /ECC etc. are probably not secure against quantum computing, but our chunks are, (AES internally + xor of previous chunk hash) quantum resistant. There are a few other things in the mix, but you get the idea.
[edit I should add the session packets etc. where you keep the data maps when encrypted with AES types are quantum resistant] I am looking to use a method of private encryption that is similar to EDDH capability but using quantum resistant protocols all the way, so quantum proof is well within our reach for all data]