Source-independent quantum random number generation method and system for resisting hard light blinding
A quantum random number and random number technology, which is applied in the field of source-independent quantum random number generation method and system for resisting blinding by strong light, can solve problems such as being unable 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] Such as image 3 As shown, this embodiment provides a source-independent quantum random number generation system that resists strong light blinding, including an untrustworthy random light source, a channel, and a credible detection device with an open structure. The basis vector dimension of the system , the basis degree of freedom used is the polarization degree of freedom, and the basis selection method adopted is active basis 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 slow axis of polarization-maintaining fiber, which transmits pulsed light with high extinction ratio to a reliable but open-constructed detection device;
[0083] The credible but disclosed detection device includes a first circulator, a first polarization-maintaining ...
Embodiment 2
[0086] Such as Figure 4 As shown, this embodiment provides a source-independent quantum random number generation system that resists strong light blinding, including an untrustworthy random light source, a channel, and a credible detection device with an open structure. The basis vector dimension of the system , the basis degree of freedom used is the polarization degree of freedom, and the basis selection method adopted is active basis selection.
[0087] The untrustworthy randomness 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 pulsed light with a high extinction ratio, and then a pulse with a high extinction ratio The light is rotated by a 45° rotator to form 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 open-constructed detection device includes a s...
Embodiment 3
[0091] Such as Figure 5 As shown, this embodiment provides a source-independent quantum random number generation system that resists strong light blinding, including an untrustworthy random light source, a channel, and a credible detection device with an open structure. The basis vector dimension of the system , 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 coding base vector, and the base vector selection method adopted 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 consisting of four time windows, only There is a pulse in a time window;
[0093] The credible but open-constructed detection device includes first to seventh beam splitters, fifth to ni...
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