kyber-node

A sample library for implementing encryption and decryption with CRYSTALS-Kyber in Node.js. CRYSTALS-Kyber is on the standardization track as part of NIST's Post-Quantum Cryptography project.

This project was implemented as a proof-of-concept for Evervault.

This project was bootstrapped by create-neon.

Installing kyber-node from npm

Installing kyber-node requires a supported version of Node and Rust.

You can install the project with npm. In the project directory, run:

``sh
$ npm install kyber-node
`

This fully installs the project, including installing any dependencies and running the build.

Building kyber-node

If you have already installed the project and only want to run the build, run:

`sh
$ npm run build
`

This command uses the cargo-cp-artifact utility to run the Rust build and copy the built library into ./index.node.

Exploring kyber-node

After building kyber-node, you can explore its exports at the Node REPL:

`sh
$ npm install
$ node
> require('.').encrypt("Hello, world!")
"ev:pq:Uznds/JrabXgAUPz:7aTkgHZ8Qr/LI3Em9fWuKRm9dEDRoa4HT/d9uKcKnbPSDpNSDK25LKBCqAucg6Cy/ttpvrcOlA8dWK235R1M83h+eNJzwxf5X/cmCJ3XFJu99xVMkCs+FlUVOuuHSQganq4KE07AaZOa71ChGje8OJU/dA777djZkCq8k7fvuD7umpSVVBOHg8IihkGaVgbMnGr/lxAp6jlUQhGcUwwvSuECT+r+pqCTbNnRyg+qf69USr9c8TJuu3A2DiBgKNHyG/FnOiBkTPcn9PKZb/CBCCCcJ3AmqD0dOKaC+EmyC/P9o+eyfENqqdluoLYhqcZE/25BcbPy7/5Exgi+uRycMDf5FmczxdexkxKRKDsp+hurfm4uIFAxjVbcYPpnYLu9gQpjiRau+1QuC9eJC38K+bAL66NWL89CsULGNkqYdX1co4OGuIZTJupwi6ZYUmkSTen61RHdt+nleuqsDXCHrOCtIfqNhF5oYmQczaxE0AG06obcvPChUe0YJxV+ZV/ifyMdzTPfrmo7aNcA8Sx3Qv/6LCZtZtLCrtIMy3uy7GBs/TEfHSjB9LBZToEilmuA/RQK9h7TFxovze9EqDBJC4Uu0NcON2wab2kHlXj4pcfeWX6qKeb/ZIiBqLigkUA1HeozB4Av6w+imhi9dxV5cc+OW9DtuAgZCeK51p8NrORepaLyaJGRj2tplD9HpLoKbkIT89uMf6CWISu2smw2OBJqRkNHwUX++LijAld80MoA/obpy/cFegJhzQdGueZGuQSRVR/TfwWILAXbGuf8H8EkwfK/S9gC+c6R7NuoT80Bg3Suaqn3D4GVwKD+OMSaFUIABEZG8BCEovqvGCC8B9GXFb8uIMksje+6pGlSu2M0c59xLmwj31LF9t0oc62psI+MaNYsWf5CKAMEizffc1hLGmVDRmBvp/d+eOtNJYQhtmEVUbdF/Agx2v5Ec3591Cc+sDngkztMAmQGf7h7jhipU0BXz2ZptqbmAzonaeX+FKY6ZIfXxuS4SKQeWhtv:GsLWJKx3nddj6bzo54xUMjOz1Eb1vnQac1HjK8E=:$"
`

Available Scripts

In the project directory, you can run:

$3

Installs the project, including running npm run build.

$3

Builds the Node addon (index.node) from source.

Additional cargo build arguments may be passed to npm build and npm build-* commands. For example, to enable a cargo feature:

`
npm run build -- --feature=beetle
`

#### npm build-debug

Alias for npm build.

#### npm build-release

Same as npm build but, builds the module with the release profile. Release builds will compile slower, but run faster.

$3

Runs the unit tests by calling cargo test.

Project Layout

The directory structure of this project is:

`
kyber-node/
├── Cargo.toml
├── README.md
├── index.node
├── package.json
├── src/
| └── lib.rs
└── target/
`

$3

The Cargo manifest file, which informs the cargo command.

$3

This file.

$3

The Node addon—i.e., a binary Node module—generated by building the project. This is the main module for this package, as dictated by the "main" key in package.json.

Under the hood, a Node addon is a dynamically-linked shared object#Shared_libraries). The "build" script produces this file by copying it from within the target/ directory, which is where the Rust build produces the shared object.

$3

The npm manifest file, which informs the npm` command.

$3

The directory tree containing the Rust source code for the project.

$3

The Rust library's main module.

$3

Binary artifacts generated by the Rust build.

Learn More

To learn more about Neon, see the Neon documentation.

To learn more about Rust, see the Rust documentation.

To learn more about Node, see the Node documentation.

To learn more about Evervault, see the Evervault documentation.