As nonce is supposed to be random and used only one time, when receiving a nonce, I need to check it with all past nonce records. That means I need a database to store every nonce I had before. Of ...
I have a hardware device (H), phone (P) and web server (S). I would like P to be able to send commands to H but only if it is authorized to do so. Permissions are stored on server. Technically I could ...
so, I want to implement server which validates registration with captcha. First I thought about storing captchas in a server, but then I thought it would be hassle on caching, memory, what if I need ...
Forgive my ignorance, security is not my field. I have a RPC server where the server keeps a protected file containing user names and corresponding passwords. I would like to securely authenticate ...