WASM Hashing Experiment

Experiment using Rust + WebAssembly to generate SHA-{1,2,3} hash implementations

Current status

See https://acdha.github.io/wasm-hashing/ to try it in your browser. For static strings, the WASM code is the performance lead on almost every size although SubtleCrypto may be competitive on SHA-1 at some message sizes.

One especially compelling story for this approach is that all common digest algorithms are supported by https://github.com/RustCrypto/hashes whereas most of the other JavaScript libraries only support a few or, in the case of jsSHA, are extremely slow.

Building

1. Make sure the Rust nightly toolchain is setup correctly on your system
2. Make sure you have all of the JavaScript dependencies (e.g. yarn install --dev)
3. make
4. Use something like httplz to serve the dist/ folder

Contributing

Make sure you're comfortable releasing any code under CC0