To cite package ‘PKI’ in publications use:

Urbanek S (2026). PKI: Public Key Infrastucture for R Based on the X.509 Standard. R package version 0.1-15, https://github.com/s-u/pki.

Corresponding BibTeX entry:

  @Manual{,
    title = {PKI: Public Key Infrastucture for R Based on the X.509
      Standard},
    author = {Simon Urbanek},
    year = {2026},
    note = {R package version 0.1-15},
    url = {https://github.com/s-u/pki},
  }