#sodium #key-exchange #libsodium #api-bindings #nacl

no-std alkali

Safe Rust bindings to the Sodium cryptographic library

13 releases

0.3.0 Mar 11, 2023
0.2.0 Feb 14, 2023
0.1.0 May 13, 2022
0.1.0-alpha.9 Apr 19, 2022
0.1.0-alpha.2 Dec 26, 2021

#899 in Cryptography

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634 downloads per month
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13K SLoC


crates.io docs.rs CI status

Safe, idiomatic Rust bindings to the Sodium cryptographic library.

Sodium is a fast, modern cryptographic library written in C. This crate intends to provide a higher-level API for making use of the constructs Sodium provides. These constructs include simple-to-use symmetric and asymmetric authenticated encryption, signatures, hashing, password derivation, and key exchange: In short, the majority of operations required for many modern cryptographic protocols.

The intention for this library is to be a replacement for sodiumoxide, which is now deprecated. Lots of design decisions here were inspired by this library, so thanks to all of its contributors!


Comprehensive documentation for this library is available on docs.rs. The intention is for the entire library to be well documented, with illustrative examples and information on security concerns.

Security/Vulnerability Disclosures

If you find a vulnerability in alkali, please immediately contact tom25519@pm.me with details.

My age public key is:



Licensed under either of:

at your option.


Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.


~32K SLoC