CROWDGUARD - GUARanteeD confidentiality and efficiency in CROWDsourcing platforms

Home » CROWDGUARD - GUARanteeD confidentiality and efficiency in CROWDsourcing platforms
01/02/2017 to 31/08/2020

Project Description:

Crowdsourcing platforms offer the unprecedented opportunity to connect easily on-demand task providers, or requesters, and on-demand task solvers, or workers, locally or world-wide, for paid or voluntary work, and for various kinds of tasks. By facilitating the accurate search of specific workers, otherwise unavailable, they have the potential to reduce costs as well as to accelerate and even democratize innovation. However, abusive behaviors from crowdsourcing platforms against requesters or workers are frequently reported in the news or on dedicated websites, whether performed willingly or not, putting them at the epicenter of a burning societal debate.

The goal of the Crowdguard project is to design sound protection measures of the requesters and workers from threats coming from the platform, while still enabling the latter to perform efficient and accurate tasks assignments. We will address these challenges by :

* Proposing secure distributed algorithms for allowing workers (resp. requesters) to collaboratively compute a privacy-preserving version of their profiles (resp. a confidentiality-preserving version of their tasks) which will then be sent to the platform. We plan to intertwin encryption with differential privacy in order to reconcile privacy with efficiency.

* Identifying and formalizing the possible abusive behaviors that the platform may perform, and extending the previously defined privacy-preserving models/algorithms in order to prevent them.

Wednesday, 12 December, 2018


The Commission made a commitment to launch a pilot phase under Horizon 2020 to help bring national cybersecurity centres together into a network.

Future Events

The Annual Computer Security Applications Conference (ACSAC) will be held in San Juan, Puerto Rico on 9-13 December 2019. 

09/12/2019 to 13/12/2019

The one-day Summit on the 13th of January brings together prominent security practitioners for in-depth talks focused on techniques that can be used to successfully identify, contain, and eliminate adversaries targeting your networks. Attendees will gain tools and methods to leverage as soon as they return to work.

The Summit will explore:

13/01/2020 to 19/01/2020