The Crypto on the NHSX COVID-19 App is a Thing of Maths Beauty

Forget the Apple/Google API method for rolling IDs, and using boring only hashing methods. The cryptography used in the NHSX app is a thing of real maths beauty and integrates symmetric key encryption, public key encryption and elliptic curves. The method involved uses ECIES (Elliptic Curve Integrated Encryption Scheme) with AES, and you can find out more here. Its main focus is to…