libsodium is written in c. "Pure javascript" is a supported compilation target[0] of the project. Emscripten is used to compile the c to javascript. There's als

libsodium is written in c. "Pure javascript" is a supported compilation target[0] of the project. Emscripten is used to compile the c to javascript. There's also now a wasm compilation target, again via emscripten. The c source code is really excellent[1]. It's worth browsing! [0]-https://github.com/jedisct1/libsodium.js https://github.com/jedisct1/libsodium.js [1]-https://github.com/jedisct1/libsodium/tree/master/src/libsodium https://github.com/jedisct1/libsodium/tree/master/src/libsod...