DEMO

Nikolaj Volgushev, Malte Schwarzkopf, Andrei Lapets, Mayank Varia, Azer Bestavros
2016 Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security - CCS'16  
Secure multi-party computation (MPC) allows multiple parties to perform a joint computation without disclosing their private inputs. Many real-world joint computation use cases, however, involve data analyses on very large data sets, and are implemented by software engineers who lack MPC knowledge. Moreover, the collaborating parties -e.g., several companies -often deploy different data analytics stacks internally. These restrictions hamper the realworld usability of MPC. To address these
more » ... nges, we combine existing MPC frameworks with data-parallel analytics frameworks by extending the Musketeer big data workflow manager [4] . Musketeer automatically generates code for both the sensitive parts of a workflow, which are executed in MPC, and the remaining portions of the computation, which run on scalable, widely-deployed analytics systems. In a prototype use case, we compute the Herfindahl-Hirschman Index (HHI), an index of market concentration used in antitrust regulation, on an aggregate 156 GB of taxi trip data over five transportation companies. Our implementation computes the HHI in about 20 minutes using a combination of Hadoop and VIFF [1], while even "mixed mode" MPC with VIFF alone would have taken many hours. Finally, we discuss future research questions that we seek to address using our approach.
doi:10.1145/2976749.2989034 dblp:conf/ccs/VolgushevSLVB16 fatcat:jiho4j436zam7ll5zysbcw3uom