Cryptography – Key management – Having particular key generator
Reexamination Certificate
2008-07-15
2008-07-15
Sheikh, Ayaz (Department: 2131)
Cryptography
Key management
Having particular key generator
C380S256000, C380S277000, C380S278000, C380S041000
Reexamination Certificate
active
10473771
ABSTRACT:
The present invention relates to a quantum cryptography system for the secure key generation, especially with signal sources and analysis channels. The signal sources are arranged spatially separated in such a manner that the wave fronts of light signals emitted by them superimpose partially at the input of the quantum channel. The analysis channels are arranged in such a manner that the wave front of the light signals coming from the quantum channel are split up spatially and at least two of the parts are analyzed in a quantum mechanical state.
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Kurtsiefer Christian
Weinfurther Harald
Chen Shin-Hon
Ludwig-Maximilians-Universitat Muchen
Sheikh Ayaz
Welsh & Katz Ltd.
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