Purpose Quantum key distribution (QKD) is a technology, based on the quantum laws of physics, rather than the assumed computational complexity of mathematical problems, to generate and distribute provably secure cipher keys over unsecured channels. The authors are using this concept of QKD for...

By combining quantum key with classical one, a novel block cryptographic algorithm that can be applied to encrypt qubits is presented. The security of the algorithm is analyzed from several aspects. It is shown that the qubit block encryption algorithm can prevent quantum attacking strategy as...

Based on quantum computation, a novel quantum block cryptographic algorithm that can be used to encrypt classical messages is proposed. The security of this algorithm is analyzed from several aspects. It is shown that the quantum block cryptographic algorithm, in which the key can be reused...

The quest for more efficiency and security is reflected in the economy as a whole, but especially in the product and process innovations in information and communication technology (ICT). We examine the ten concepts considered to have the brightest prospects in the business segment in terms of...