A feebly secure trapdoor function

@misc{hirsch2008_689,
  author = {Hirsch, Edward A. and Nikolenko, Sergey I.},
  title = {{A feebly secure trapdoor function}},
  year = {2008},
  url = {https://cms.sergeynikolenko.ru/uploads/HN_08_Feebly_Trapdoor_42e32b3878.pdf}
}