QUANTUM CRYPTOGRAPHY METHOD AND SYSTEM

摘要

Polarisation ambiguity quantum cryptography is the most used but it requires maintenance of polarisation. The invention provides an alternative: quantum cryptography by coding on the inteferogram phase of a particle stream. It consists in transforming a sequence of K bits of digital data into a train of K particle stream interferograms of duration and periodicity T with the knowledge that the state of the K period depends on the value of the corresponding K bits.