argon2 0.5.0

Pure Rust implementation of the Argon2 password hashing function with support for the Argon2d, Argon2i, and Argon2id algorithmic variants

RustCrypto: Argon2

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Pure Rust implementation of the Argon2 password hashing function.



Argon2 is a memory-hard key derivation function chosen as the winner of the Password Hashing Competition in July 2015.

It implements the following three algorithmic variants:

  • Argon2d: maximizes resistance to GPU cracking attacks
  • Argon2i: optimized to resist side-channel attacks
  • Argon2id: (default) hybrid version combining both Argon2i and Argon2d

Support is provided for embedded (i.e. no_std) environments, including ones without alloc support.

Minimum Supported Rust Version

Rust 1.65 or higher.

Minimum supported Rust version can be changed in the future, but it will be done with a minor version bump.

SemVer Policy

  • All on-by-default features of this library are covered by SemVer
  • MSRV is considered exempt from SemVer as noted above


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.