encrypted-ptr

This allows you to encrypt references in Rust! Both normal references, and counted references (aka Arcs)

They're stored in-memory with a unique key and IV!

Before

After

Questions That You're Probably Too Horrified To Ask But I Will Answer Anyways

Why?

Why aren't you encrypting your pointers?

(also it might help against CheatEngine trainers or something idk)

Won't they leak anyways?

For like a few instructions, yeah.

Sadly, processors do not understand the sheer importance of encrypting your pointers, and the raw decrypted pointer will need to be in a register at one point or another. Maybe ARM will implement it if we add more, uh, "idea juice" to their water (or they might just come up with a stupider name than "aarch64" instead)

Is this sound?

Probably.

Did you test this in miri?

It failed instantly.

Should I use this in production?

Absolutely! (not)

Won't this use up a lot of memory?

Yes. About 3x the memory per pointer. I don't think it fits in the stack, sorry.

Won't this degrade performance?

Modern platforms have hardware-accelerated AES, so I wouldn't imagine it'd be much performance loss.

But yes, it would.

License

encrypted-ptr is dual-licensed under the Apache 2.0 license or MIT license. Use whichever one floats your boat.