This course covers the basic knowledge in understanding and using cryptography. The main focus is on definitions, theoretical foundations, and rigorous proofs of security, with some programming ...

Quantum computers pose a serious threat to today's digital security due to their ability to factor numbers into primes much faster than their classical counterparts. Shor’s and Grover’s algorithms ...

Defining security in quantum key distribution with Carla Ferradini, Martin Sandfuchs, and Renato Renner The security of quantum key distribution (QKD) is quantified by a parameter ε >0, which—under ...

Say you want to send a private message, cast a secret vote or sign a document securely. If you do any of these tasks on a computer, you’re relying on encryption to keep your data safe. That encryption ...

Researchers have used state-of-the-art machine translation software — and some old-fashioned hunches — to crack the code used by a secret society in Germany three centuries ago. The results shed light ...