TweetNacl in CT-Wasm

This repository is a fork of TweetNacl in WebAssembly annotated with CT-Wasm labels to ensure constant-time.

This is a semi-handwritten port of the crypto library TweetNacl to CT-Wasm. This is the fastest library for end-to-end encryption running in the browser. It provides state of the art strong cryptography.

It provides the following features:

• Secret-key authenticated encryption
  • implements XSalsa20, Poly1305
• Public-key authenticatd encryption
  • implements X25519, XSalsa20, Poly1305
• Public-key signatures
  • implements Ed25519
• Hashing
  • implements SHA512

The CT-Wasm source code can be found in the src/wat/* directory.

Build

Run

npm run build -- path/to/ct_wasm_spec

to build the JavaScript file dist/wasmCode.js. The ct_wasm_spec tool can be found in our pre-built releases under *_binaries.zip. A pre-built version of the library can be found there as well under tweetnacl-ctwasm.zip.

Run

Open index.html with the modified Chromium binary found in our releases page to run dist/wasmCode.js. Then open up the console to see the benchmark numbers.