The threat posed by quantum computing is worth a separate section, given the efforts made by the IT industry to implement and commercialize a fully functioning quantum computing architecture in the near future.
In the research sector, quantum computing has, in fact, turned into a realistic opportunity; also in light of Google's recent announcement claiming that they have reached quantum supremacy, that is to say, they have managed to perform a calculation on their quantum computing platform that is not feasible with traditional computers.
In order to consciously assess whether quantum computing constitutes a real threat to the blockchain, and in general, for all those architectures that base their functionality on the use of the cryptographic primitives described in Chapter 2, Cryptography Essentials, we must first briefly introduce...
