To cite package ‘otp’ in publications use:

Lai R (2024). otp: One Time Password Generation and Verification. R package version 0.1.1, https://github.com/randy3k/otp.

Corresponding BibTeX entry:

  @Manual{,
    title = {otp: One Time Password Generation and Verification},
    author = {Randy Lai},
    year = {2024},
    note = {R package version 0.1.1},
    url = {https://github.com/randy3k/otp},
  }