Quote from: ABCbits on Today at 08:32:58 AM

Quote from: QuickAccount on Today at 05:58:12 AM

What can I improve or change?

Since it's for business usage, i would make these suggestions.
1. Do some research on TEE (trusted execution environment). It's feature provided by CPU or SoC to manage sensitive data more securely, although some people distrust it due to various reason (e.g. consider Intel ME as a backdoor or security issue).
2. Unencrypted swapfile bring security concern, since sensitive data may be stored there temporarily.

Although i agree with @odolvlobo to simply have few casino's wallet and database which track user's balance along with it's changes, since your user currently doesn't have access to their private key anyway.

I looked into this and this is exactly what I was looking for, you're right about the INTEL ME backdoor I worry about, but due to the processor I use I can mount additional firmware and hopefully make a solution that doesn't piggyback on preexisting TEE on the CPU. Will keep the thread updated if I have any more questions.