AC-Framework for Privacy-Preserving Collaboration

The secure mlllti-party compnt.ation (ShIC) illode1 provitles ineails for l~alailciilg the use and confidentiality of distribut.ed data. Iilcreasiilg security coilcerils 11al.e led to a surge in work oil practical secure 1nult.i-party coinputatioil protocols. However. inost are only proveil secure under the semi-hoilest model, and security under this adversary illode1 is iils~~fici~iit for illost applications. I11 this paper: we propose a no\rel frame~vork: accoui~tal~le coinputi~ig (XC) framework. ~17llicll is sufficient or practical for man!applic.ations \vitlioiit the coinplesit,y and cost of a ShIC-protocol under the malicious model. F~lrtherinore. to s h o ~ tlie a~)plical~ilit~of t.1le AC-framework. we present an applicatioil under this framework regarding PI-i\-acy-preser\.iilg illillillg frequent it,emset,s. .