Memory Hack Vulnerability

[briveramelo]

Nethereum.Game.Sample/Original/Core/Ethereum/GameScoreService.cs

Line 65 in e611dd8

public async Task<string> SubmitScoreAsync(int score)

This is still subject to a memory hack (modifying the int score passed into this function) with a tool like Cheat Engine and more. See https://github.com/dsasmblr/game-hacking

Given this significant vulnerability, what problem does the blockchain solve?

[juanfranblanco]

This is a sample, of how you can use the blockchain to store permanently your gamer profile, scores, purchases, etc. This is not a sample on gaming security, actually I wanted to see if anybody will tell me if they have hacked the http://flappyeth.nethereum.com/, as you have said tampering the score, finding the private key etc.

Of course this is easily hacked, it can be easily decompiled the app too. A more complex solution will be to combine the game play with state channnels, and server side step by step validation of play.

Of course it also depends on your scenario. If your intention is to build your reputation as a gamer. Once you you attach your identity (gamer player avatar across different games), would you want to be known as a cheat ?