Install liboath-dev by entering the following commands in the terminal:
sudo apt update sudo apt install liboath-dev
Development files for the OATH Toolkit Liboath library
The OATH Toolkit makes it easy to build one-time password authentication systems. It contains shared libraries, command line tools and a PAM module. Supported technologies include the event-based HOTP algorithm (RFC4226) and the time-based TOTP algorithm (RFC6238). OATH stands for Open AuTHentication, which is the organization that specify the algorithms. For managing secret key files, the Portable Symmetric Key Container (PSKC) format described in RFC6030 is supported. . This package contain all files necessary for developing programs that use Liboath.