# fpe [](https://crates.io/crates/fpe) #
This crate contains pure-Rust implementations of format-preserving encryption
algorithms.
The following algorithms are implemented:
- FF1 (specified in [NIST Special Publication 800-38G](http://dx.doi.org/10.6028/NIST.SP.800-38G)).
This crate requires Rust version 1.41 or greater.
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
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.