Yeah, it's a model of computation used in this line of research. See the original Goldreich/Ostrovsky paper for more info: http://dl.acm.org/citation.cfm?id=233

Yeah, it's a model of computation used in this line of research. See the original Goldreich/Ostrovsky paper for more info: http://dl.acm.org/citation.cfm?id=233553 http://dl.acm.org/citation.cfm?id=233553