# otpauth-rs
[](https://github.com/messense/otpauth-rs/actions/workflows/CI.yml)
[](https://crates.io/crates/otpauth)
Two-step verification of HOTP/TOTP for Rust.
## Installation
Add it to your ``Cargo.toml``:
```toml
[dependencies]
otpauth = "0.5"
```
## Examples
### HOTP example
```rust
use otpauth::HOTP;
fn main() {
let auth = HOTP::new("python");
let code = auth.generate(4);
assert_eq!(true, auth.verify(code, 0, 100));
}
```
### TOTP example
```rust
use std::time::{SystemTime, UNIX_EPOCH};
use otpauth::TOTP;
fn main() {
let auth = TOTP::new("python");
let timestamp1 = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
let code = auth.generate(30, timestamp1);
let timestamp2 = SystemTime::now().duration_since(UNIX_EPOCH)?.as_secs();
assert_eq!(true, auth.verify(code, 30, timestamp2));
}
```
## License
This work is released under the MIT license. A copy of the license is provided in the [LICENSE](./LICENSE) file.