Quantum computing poses a significant threat to current cryptographic systems. Classical cryptography systems are vulnerable ...

Researchers at Penn Engineering have created a chip that outstrips the security and robustness of existing quantum communications hardware. Their technology communicates in "qudits," doubling the ...

It is supposed to be absolutely secure – a means to transmit secret information between two parties with no possibility of someone eavesdropping. Yet quantum cryptography, according to some engineers, ...

The message is called the plaintext because it is the unchanged source information. Example: The cat ran away. The secret message generated is called a cipher or ciphertext and it is the encrypted ...

Andreas Poppe at the University of Vienna and colleagues at ARC Seibersdorf Research in Austria and Ludwig-Maximillians University in Germany used an entangled-state quantum cryptography system that ...