Sodium is a modern, easy-to-use software library for encryption, decryption, signatures, password hashing and more.
It is a portable, cross-compilable, installable, packageable fork of NaCl, with a compatible API, and an extended API to improve usability even further.
Its goal is to provide all of the core operations needed to build higher-level cryptographic tools.
The design choices emphasize security and ease of use. But despite the emphasis on high security, primitives are faster across-the-board than most implementations.
Version 1.0.15 was released on Oct 1st, 2017.
A mailing-list is available to discuss libsodium.
In order to join, just send a random mail to
This documentation can be downloaded as ePUB (for iPad, iPhone, Mac), MOBI (for Kindle) and PDF here: https://www.gitbook.com/book/jedisct1/libsodium/details
LICENSE file for details.
The development of libsodium is entirely made by volunteers. We would like to specially thank the following companies and organizations for their contribution:
People who designed the primitives and wrote implementations the library is based on can be found in the AUTHORS file. This project wouldn't exist without them.
Also a huge "thank you" to people and companies who contributed bindings for their favorite programming languages. A list can be found in the THANKS file.
Another huge "thank you" to package maintainers who have been doing an amazing job at building packages for many distributions and operating systems.
Finally, thanks to you for reading this documentation and for the awesome projects you are going to build with this library!