I am working on an application where users can send tokens to each other as rewards. The application is not crypto-focused it is more of a finance management app because of this we believe it would be best to store the private keys and process all the transactions in the backend.
The issue is I am just very confused on how to get started with this. The reason I am so worried is because I understand the importance of keeping these keys secure and I do not want to mess this up. Would it be smart to use something like Azure Key Vault.?