Objective In a free society, there is persistent tension between utility and privacy. Citizens have the basic right to keep their personal information private. However, sometimes keeping our data private could significantly reduce our ability to use this data to benefit ourselves or society. This tension is multiplied many times over in our modern data driven society, where data is utilized using remote algorithms. State of the art research suggests that new advanced cryptographic primitives can mitigate this tension. These include computing on encrypted data via fully homomorphic encryption, fine grained access control to encrypted data via attribute based encryption, and most recently general purpose program obfuscation, which on paper can solve many of cryptography's long standing problems. However, these primitives are largely either too complicated or not sufficiently founded to be considered for real world applications. Project REACT will apply foundational theoretical study towards removing the barriers between advanced cryptographic primitives and reality. My viewpoint, supported by my prior research success, is that orders-of-magnitude improvement in efficiency and security requires foundational theoretical study, rather than focusing on optimizations or heuristics. My projection is that progress in this direction will both allow for future realistic implementation of these primitives, reducing said tension, as well as contribute to basic cryptographic study by opening new avenues for future research.To achieve this goal, I will pursue the following objectives: (i) Studying the computational complexity of underlying hardness assumptions, specifically lattice based, to better understand the level of security we can expect of proposed primitives. (ii) Simplifying and extending the LWE/trapdoor paradigm that underlies many of the new primitives, and that I find incomplete. (iii) Constructing cryptographic graded encoding schemes and obfuscators. Fields of science natural sciencescomputer and information sciencescomputer securityaccess controlnatural sciencescomputer and information sciencescomputer securitycryptographynatural sciencescomputer and information sciencesartificial intelligenceheuristic programming Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Topic(s) ERC-2017-STG - ERC Starting Grant Call for proposal ERC-2017-STG See other projects for this call Funding Scheme ERC-STG - Starting Grant Coordinator WEIZMANN INSTITUTE OF SCIENCE Net EU contribution € 1 193 460,00 Address Herzl street 234 7610001 Rehovot Israel See on map Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 Beneficiaries (3) Sort alphabetically Sort by Net EU contribution Expand all Collapse all WEIZMANN INSTITUTE OF SCIENCE Israel Net EU contribution € 1 193 460,00 Address Herzl street 234 7610001 Rehovot See on map Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 TEL AVIV UNIVERSITY Israel Net EU contribution € 187 500,00 Address Ramat aviv 69978 Tel aviv See on map Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00 BEN-GURION UNIVERSITY OF THE NEGEV Israel Net EU contribution € 112 843,00 Address . 84105 Beer sheva See on map Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Other funding € 0,00