%A Kevin Garapo, Mhlambululi Mafu, Francesco Petruccione %T Intercept-resend attack on six-state quantum key distribution over collective-rotation noise channels %0 Journal Article %D 2016 %J Chin. Phys. B %R 10.1088/1674-1056/25/7/070303 %P 70303-070303 %V 25 %N 7 %U {https://cpb.iphy.ac.cn/CN/abstract/article_118729.shtml} %8 2016-07-05 %X We investigate the effect of collective-rotation noise on the security of the six-state quantum key distribution. We study the case where the eavesdropper, Eve, performs an intercept-resend attack on the quantum communication between Alice, the sender, and Bob, the receiver. We first derive the collective-rotation noise model for the six-state protocol and then parameterize the mutual information between Alice and Eve. We then derive quantum bit error rate for three intercept-resend attack scenarios. We observe that the six-state protocol is robust against intercept-resend attacks on collective rotation noise channels when the rotation angle is kept within certain bounds.