Hello,

Earlier this evening, whilst working on my project, I began wondering, is it possible to encrypt textures, so that no one can mod them or put something inappropriate, that may cause problems.

Theoretical plan:

Tool:

1) Convert textures to byte arrays

2) Encrypt with RSA Private key

3) Store *.bin files

In game:

1) Open *.bin files

2) Decrypt with RSA Public key

3) Load byte arrays into memory

Idea is that only me, as a developer, can place textures into the game.

Of course, i know that its still possible to place custom stuff into the game, but i want it to be a bit more complicated than "replace a png file".

Or is it actually a common tactic?

Or maybe RSA is not meant for that...

You could use a crc check. Even when the images are loaded in memory, you could check it every x seconds.

Hello,

Earlier this evening, whilst working on my project, I began wondering, is it possible to encrypt textures, so that no one can mod them or put something inappropriate, that may cause problems.

Theoretical plan:

Tool:

1) Convert textures to byte arrays

2) Encrypt with RSA Private key

3) Store *.bin files

In game:

1) Open *.bin files

2) Decrypt with RSA Public key

3) Load byte arrays into memory

Idea is that only me, as a developer, can place textures into the game.

Of course, i know that its still possible to place custom stuff into the game, but i want it to be a bit more complicated than "replace a png file".

Or is it actually a common tactic?

Or maybe RSA is not meant for that...

You can always try an MD5 verification every time the image is loaded into memory.

But like everyone had said ahead of time, there is typically no point in preventing someone from modifying a texture. Because if they really wanted to, they could do it.

If you are worried about someone trying to do something like an Xray texture, you'll be happy to hear that under most scenarios that a transparent texture would never grant someone the ability to see through it unless it was Alpha texted in the shader. That is to say that if an object was never intended to be seen through, in most rendering engines, it will not produce anything behind it.