node-argon2

Bindings to the reference Argon2 implementation.

Usage

It's possible to hash using either Argon2i, Argon2d or Argon2id (default), and verify if a password matches a hash.

To hash a password:

const argon2 = require("argon2");

try {
  const hash = await argon2.hash("password");
} catch (err) {
  //...
}

To verify a password:

try {
  if (await argon2.verify("<big long hash>", "password")) {
    // password match
  } else {
    // password did not match
  }
} catch (err) {
  // internal failure
}

[!NOTE] By default, argon2.hash will generate secure hashes according to the security recommendations by the team that develops Argon2. For password hashing, there is no need to modify them.

To see how you can modify the output (hash length, encoding) and parameters (time cost, memory cost and parallelism), read the wiki

Comparison with the node:crypto native implementation

The native API is focused towards generic usage of the Argon2 hash function, while this package historically focused on password hashing.

Once all supported Node releases include native Argon2 and older versions are officially EOL, node-argon2 will transition into a minimal wrapper. It will offer the most developer-friendly interface, bridging users to Node's native crypto methods. This avoids duplication and ensures seamless upgrades once native support is universal.

Migrating from another hash function

See this article on the wiki for steps on how to migrate your existing code to Argon2. It's easy!

TypeScript usage

A TypeScript type declaration file is published with this module. If you are using TypeScript 2.0.0 or later, that means you do not need to install any additional typings in order to get access to the strongly typed interface. Simply use the library as mentioned above.

import * as argon2 from "argon2";

const hash = await argon2.hash(..);

Prebuilt binaries

node-argon2 provides prebuilt binaries from v0.26.0 onwards. They are built every release using GitHub Actions.

The current prebuilt binaries are built and tested with the following systems:

• Ubuntu 22.04 (x86-64; ARM64 from v0.28.2; ARMv7 from v0.43.0)
• MacOS 13 (x86-64)
• MacOS 14 (ARM64 from v0.29.0)
• Windows Server 2022 (x86-64)
• Alpine Linux 3.18 (x86-64 from v0.28.1; ARM64 from v0.28.2; ARMv7 from v0.43.0)
• FreeBSD 14 (x86-64 from v0.29.1; ARM64 from v0.44.0)

Binaries should also work for any version more recent than the ones listed above. For example, the binary for Ubuntu 20.04 also works on Ubuntu 22.04, or any other Linux system that ships a newer version of glibc; the binary for MacOS 11 also works on MacOS 12. If your platform is below the above requirements, you can follow the Before installing section below to manually compile from source. It is also always recommended to build from source to ensure consistency of the compiled module.

Before installing

You can skip this section if the prebuilt binaries work for you.

You MUST have a node-gyp global install before proceeding with the install, along with GCC >= 5 / Clang >= 3.3. On Windows, you must compile under Visual Studio 2015 or newer.

node-argon2 works only and is tested against Node >=22.0.0.

OSX

To install GCC >= 5 on OSX, use homebrew:

$ brew install gcc

Once you've got GCC installed and ready to run, you then need to install node-gyp, you must do this globally:

$ npm install -g node-gyp

Finally, once node-gyp is installed and ready to go, you can install this library, specifying the GCC or Clang binary to use:

$ CXX=g++-12 npm install argon2

NOTE: If your GCC or Clang binary is named something different than g++-12, you'll need to specify that in the command.

FAQ

$ npx @mapbox/node-pre-gyp rebuild -C ./node_modules/argon2

$ npm install argon2 --build-from-source

$ npm install argon2 --ignore-scripts
$ npx node-gyp rebuild -C ./node_modules/argon2

Contributors

Code contributors

This project exists thanks to all the people who contribute. [Contribute].

Financial contributors

Become a financial contributor and help us sustain our community. [Contribute]

Individuals

Organizations

Support this project with your organization. Your logo will show up here with a link to your website. [Contribute]

License

Work licensed under the MIT License. Please check P-H-C/phc-winner-argon2 for license over Argon2 and the reference implementation.