# onetimepassword

`no_std`-compatible Rust implementation of HMAC-based (HOTP,
[RFC 4226](https://datatracker.ietf.org/doc/html/rfc4226)) and
Time-based (TOTP, [RFC 6238](https://datatracker.ietf.org/doc/html/rfc6238))
One-Time Passwords.

* Compatible with `#![no_std]` targets.
* Supports SHA-1, SHA-256, and SHA-512 algorithms.

## License

This project is licensed under either of

* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) of
  <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 by you, as defined in the Apache-2.0 license, shall be dual
licensed as above, without any additional terms or conditions.
