MedCo is the first operational system that makes sensitive medical-data available for research in a simple, privacy-conscious and secure way. It enables hundreds of clinical sites

(with or without an i2b2 installation) to federate and collectively protect their data

for securely

sharing them with investigators, without single points of failure.

MedCo

builds on top of an i2b2 core installation

and i2b2 data model and provides advanced privacy-enhancing techniques, such as:

• Collective homomorphic encryption;
• Secure distributed protocols;
• Blockchains;
• Differential privacy.