spake2-wasm

Building

Ensure you have rust and cargo, and a modern clang.

Install wasm-pack:

cargo install wasm-pack

Then build:

wasm-pack build --target=nodejs

No available targets are compatible with triple "wasm32-unknown-unknown"

This error indicates your clang is out of date: for example, you're on MacOS using the built-in version.

On a mac you can fix this with

brew install llvm

And then prefixing the wasm-pack command as follows:

PATH=/usr/local/opt/llvm/bin:$PATH wasm-pack build --target=nodejs

Dev notes

We need to explicitly specify rand = { version = "0.6", features = ["wasm-bindgen"] } in order for spake2 to work (specifically the feature flag). Otherwise it panics at runtime.