Fig. 1: Robust DIQKD. | Nature Communications

Fig. 1: Robust DIQKD.

From: Device-independent quantum key distribution with random key basis

Fig. 1

Alice and Bob use uncharacterised devices to perform measurements on a quantum state that is created by a source that is potentially controlled by an adversary (Eve). In the proposed protocol, Alice has two possible inputs (measurement settings, magenta buttons) which are used for key generation and for running the CHSH Bell test, and Bob has four possible inputs grouped into two sets (magenta/cyan buttons): the magenta buttons are used for key generation while the cyan buttons are used for running the CHSH Bell test.

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