Which of the following statements are correct

The operating parameters. Of the quantum key distribution are not affected by the quality of the quantum channel connecting the sender and the receiver.

Tn QKD, the key is encrypted using an unconditionally secure one-time pad (OTP) encryption method.

The basic BB84 protocol uses non-orthogonal states to encode and transmit the key by employing rectilinear and diagonal bases of photon polarisations.

The E91 protocol tests violation of the Bell inequality to detect eavesdropping.