This articledoesn'tgo into the blow-by-blow details of thesealgorithms, but just about anyPHPinstallationwillincludeallyouneed tokeep yourdatamoderately (orextremely) secure.
To develop thesealgorithms the 60 researchers involved used techniques that include game theory (in which agents have to overcome barriers to collaboration in order to get the best outcome), probabilistic modelling (which is employed to predict missing data and reduce uncertainty) and optimisation techniques (which can provide means of making decisions when communications between agents are limited).