A method and system for generating source-independent quantum random numbers against strong light blinding
A quantum random number and random number technology, applied in the field of source-independent quantum random number generation method and system for resisting strong light blinding, can solve problems such as the inability to solve the blinding attack of detectors by strong light, and achieve high security, The effect of improving efficiency
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Embodiment 1
[0080] like image 3 As shown, this embodiment provides a source-independent quantum random number generation system against blinding by strong light, including an unreliable random light source, a channel, and a reliable but disclosed detection device. The basis vector dimension of the system is , the base vector degrees of freedom used are polarization degrees of freedom, and the base vector selection method used is active base vector selection.
[0081] The unreliable random light source includes a first laser and a first intensity modulator, and the light emitted by the first laser is chopped by the first intensity modulator to form pulsed light with a high extinction ratio;
[0082] The channel includes a PM fiber slow axis that transmits pulsed light with a high extinction ratio to a credible but publicly disclosed detection device;
[0083] The credible but disclosed detection device includes a first circulator, a first polarization-maintaining polarization beam split...
Embodiment 2
[0086] like Figure 4 As shown, this embodiment provides a source-independent quantum random number generation system against blinding by strong light, including an unreliable random light source, a channel, and a reliable but disclosed detection device. The basis vector dimension of the system is , the base vector degrees of freedom used are polarization degrees of freedom, and the base vector selection method used is active base vector selection.
[0087] The unreliable random light source includes a second laser, a second intensity modulator, and a 45° rotator. The light emitted by the second laser is chopped by the second intensity modulator to form a pulsed light with a high extinction ratio, and then a pulsed light with a high extinction ratio. The light is rotated by a 45° rotator to form a signal light; the 45° rotator can be composed of a wave plate or other devices that can rotate the light by 45°;
[0088] The credible but constructively disclosed detection device...
Embodiment 3
[0091] like Figure 5 As shown, this embodiment provides a source-independent quantum random number generation system against blinding by strong light, including an unreliable random light source, a channel, and a reliable but disclosed detection device. The basis vector dimension of the system is , the base vector used is the time phase base vector, where the time base vector is the monitoring base vector, the phase base vector is the coded base vector, and the base vector selection method used is passive base vector selection.
[0092]The unreliable random light source includes a third laser and a third intensity modulator. The light emitted by the third laser is chopped by the third intensity modulator to form a time-type pulsed light, that is, in a round of transmission composed of four time windows, only There are pulses in a time window;
[0093] The plausible but disclosed detection device includes first to seventh beam splitters, fifth to ninth detectors, third to fi...
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