Recent technological advances have made it possible to apply quantum information science for a wide range of information tasks. We are witnessing a new quantum revolution that would guarantee communication security and provide outstanding computing power. However, it also sets great challenges regarding the certification task that the new quantum devices and protocols operate according to specification. Indeed, given a quantum device, how could the user of this device make sure that it performs a certain computational problem properly? This quantum certification task stands out as a key aspect in the EU Quantum Technologies Program as well. The aim of the project is to establish a new research line in the certification of complex quantum systems using large-scale tools, crucial for future device-independent quantum technologies.