keccak 0.1.4

Pure Rust implementation of the Keccak sponge function including the keccak-f and keccak-p variants

RustCrypto: Keccak Sponge Function

crate Docs Build Status Apache2/MIT licensed Rust Version Project Chat

Pure Rust implementation of the Keccak Sponge Function including the keccak-f and keccak-p variants.



This crate implements the core Keccak sponge function, upon which many other cryptographic functions are built.

For the SHA-3 family including the SHAKE XOFs, see the sha3 crate, which is built on this crate.

Minimum Supported Rust Version

Rust 1.41 or higher by default, or 1.59 with the asm feature enabled.

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.