Cryptography without using secret keys

Most security applications, for instance, access to buildings or digital signatures, use cryptographic keys that must at all costs be kept secret. That also is the weak link: Who will guarantee that the key doesn’t get stolen or hacked? Using a physical unclonable key (PUK), which can be a stroke of white paint on a

Quantum Computing May Be Closer Than Expected With ‘Game Changer’ Discovery

An anonymous reader quotes a report from Inverse: Researchers from the Johns Hopkins University describe a superconducting material, B-Bi2Pd, that naturally exists in a quantum state without the additional influence of magnetic fields usually needed for such an effect. The authors write that the low-maintenance, stability of this material makes it a perfect candidate for