The only way to be sure would be to physically self-host with the option to air gap the storage from the Internet.
We're constantly improving our WhitePaper to provide as much clarity as possible about our systems and algorithms.
We had set lifetime storage for 10 years, and have clarified it on our website to prevent it from being misleading. Thanks a lot for your inputs! :)
If you say it's lifetime and then have to explain it as being 10 years, it's still misleading. Just take out the word 'lifetime'.
The chances of me trusting a technology company, especially a startup, especially especially one doing anything on blockchain, to provide a lifetime service is effectively zero. Annual pricing is fine; if you want to go crazy offer two or three years.
That plus the high level overview of the algorithms seems fair enough for a whitepaper
Although I don't get what additional security is gained from using an additional symmetric sharing key in protocol two. Isn't the key gonna be encrypted anyways with the temporary public key from Bob? Also which protocol is used for the asymmetric encryption?
I'd love to like this because imo decentralized private storage is an important issue that urgently needs solutions. But how can you convince people this is better than trusting dropbox when you don't even tell them how it works? And how do you guarantee lifetime storage through a small one time payment? Surely Storj disk space providers aren't going to host files for free.