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Quantum cryptography could well be the first application of quantum mechanics at the single-quantum level. The rapid progress in both theory and experiment in recent years is reviewed, with emphasis on open questions and...

Quantum technology is one of the most promising and challenging fields in contemporary science. Quantum computing, quantum cryptography, and more generally quantum information technologies claim that they, in the short ...

Subjects / keywords: Cryptography; Mathematical models; Electronic books

Subjects / keywords: Cryptography; Computer security; Computer networks; Security measures; Electronic books

Subjects / keywords: Cryptography; Computer security; Data encryption (Computer science); Electronic books

Subjects / keywords: Cryptography; Electronic books

Subjects / keywords: Cryptography; Electronic books

Subjects / keywords: Cryptography; Electronic books

Subjects / keywords: Computer security; Cryptography; Electronic books

Subjects / keywords: Data encryption (Computer science); Cryptography; Data processing; Computer security; Python (Computer program language); Electronic books

Subjects / keywords: Computer networks; Security measures; Cryptography; Data protection; Electronic surveillance; Information technology; Social aspects

Subjects / keywords: Data transmission systems; Security measures; Computer security; Cryptography; Electronic books

Subjects / keywords: Computer security; Cryptography; Data transmission systems; Security measures; Electronic books

A computer is generally considered to be a universal computational device; i.e., it is believed able to simulate any physical computational device with a cost in computation time of at most a polynomial factor: It is not...