The **node‑nacl** package provides JavaScript bindings to the NaCl (Networking and Cryptography Library), exposing fast, easy‑to‑use functions for public‑key encryption (box/unbox) and digital signatures (sign/unsign) together with key‑pair generation utilities. It is intended for Node.js developers who need low‑level, high‑performance crypto primitives, but it only works on 32‑bit systems and is no longer maintained.