Hi,
I'm trying to build a good security for my online bitcoin based application. Is something like this possible?
followed by
The "Wallet keys" will be my hot wallet. There will be another wallet store which would be used for cold storage. The "bitcoin core" will be some trusted public node that I don't control.
seems inappropriate, to say the least. You could just use a pruned bitcoin-core node (for disk space) and adjust configuration options (for resources usage).
Some links :
-
https://bitcoin.org/en/full-node#reduce-storage-
https://bitcoin.org/en/full-node#reduce-traffic