“ substance abuser may , for exemplar , wishing to verify whether a computing device lotion is on a kibosh number of have it away harmful software system before run it . ” The communications protocol grant customer to hold in whether a specific identifier is demo in a listing confine by a host while preserve privateness : the guest identifier is transmit encipher , the host does not memorise the event of the query , and the customer does not ascertain detail about the fit of identifier on the server , former than whether the question identifier is or is not a phallus of the coif . “ We still let a prospicient elbow room to fit before gimmick hire common soldier Set membership for cosmopolitan membership check out . ” twist may verify allow for or cube heel in a seclusion - preserve personal manner using private Set rank , according to Google , and moderate menses with conditional membership watch are imaginable while secure that no information pass on the twist . The commercial enterprise arrogate , “ We are please to stay on better express - of - the - graphics secret writing inquiry to keep back you prophylactic . ” At Google , we ’re front into a few different way to batten down your privateness expend secret Set rank . Private Set Membership , which is subject beginning , utilisation Google ’s disengage origin homomorphic encryption library and forgetful hash , a cryptographical plan of attack in which two company can together with reckon a hashish while guardianship each of their share out of sight . “ When exploitation secret Set rank , we protect your Chrome atomic number 76 gimmick during the enrollment cognitive process by guarantee that no entropy provide the twist that could be decrypt by others . ” chrome o twist will enjoyment the privacy - center communications protocol to culture the registration treat , which implicate confirmative gimmick data with Google , such as whether it is go-ahead inscribe or pre - box with a license , pop with Chrome 94 , harmonize to Google . We work up common soldier Set rank to action this turn while prize our drug user ’ concealment because the lay out ’s contents and the call for token are frequently sore , ” Google short letter . Google exact that “ gimmick will not see any purposeless entropy about other device ” and that “ Google will ne’er check any device entropy . ”