A lightweight HOTP (HMAC - Based one Time Password) Generator for Arduino.
This library is for those, who want to save on memory and still use HOTPs. HOTPS can be easily validated or generated using this library. This Library also enables the developer to use SHA1 and HMAC functionality.
Maintainer: Jonathan Lusky
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.