Implement CT-Wasm

[chiefbiiko]

Constant-Time WebAssembly (paper, talk) is an extension to WebAssembly that ensures information flow security and guards against timing side channel attacks. It is a WebAssembly superset, so all Wasm code is valid CT-Wasm. Basically Wasm & CT-Wasm == JS & TS



There are CT-Wasm implementations showcasing that patching V8 is feasible.

Supporting CT-Wasm would allow deno to implement high-quality cryptography. Plus give that awesome CT-Wasm effort a push!

[lucacasonato]

I think implementing this ourselves is out of scope. It would need to be part of V8 as it is changes the WASM binary representation right?

[caspervonb]

So the point here is faster native code generation right? because software implementation can be done now with WASI you're just missing out on some optimized instructions as far as I can tell.

Seems out of scope for Deno.

[chiefbiiko]

@lucacasonato yea, i agree implementing and maintaing this here would be too much..

a couple months ago, ctwasm got listed as a wasm proposal
once it matures and v8 picks it up deno can consume it