bls-signatures

bls-signatures

JavaScript library that implements BLS signatures with aggregation as in Boneh, Drijvers, Neven 2018, using the relic toolkit for cryptographic primitives (pairings, EC, hashing).

This library is a JavaScript port of the Chia Network's BLS lib. We also have typings, so you can use it with TypeScript too!

Usage

npm i bls-signatures --save

const { PrivateKey } = require('bls-js');
const privateKey = PrivateKey.fromSeed(Buffer.from([1,2,3]));
const sig = privateKey.sign(Buffer.from("Hello world!"));
sig.verify();

Please refer to the library's typings or detailed API information. Use cases can be found in the original lib's readme.

Build

Building requires Node.js (with npm) and Emcripten to be installed. The build process is the same as for the c++ lib, with one additional step: pass the Emscripten toolchain file as an option to CMake. From the project root directory, run:

git submodule update --init --recursive
mkdir js_build
cd js_build
cmake ../ -DCMAKE_TOOLCHAIN_FILE={path_to_your_emscripten_installation}/emsdk/emscripten/{version}/cmake/Modules/Platform/Emscripten.cmake
cmake --build . --

Run tests

To run tests, build the library, then go to the js_bindings folder in the build directory and run

npm test