A Novel Basis Splitting Eavesdropping Scheme in Quantum Cryptography Based on the BB84 Protocol
ZHAO Nan1,2**, ZHU Chang-Hua1, QUAN Dong-Xiao1
1State Key Laboratory of Integrated Service Networks, Xidian University, Xi'an 710071 2Department of Electrical & Computer Engineering, Michigan State University, MI 48840, USA
Abstract:We propose a novel strategy named basis-splitting scheme to split the intercepted quanta into several portions based on different bases, for eavesdropping in the process of quantum cryptography. Compared with intercept-resend strategy, our simulation results of the basis-splitting scheme under the non-ideal condition show a greater performance, especially with the increase of the length of shifted bits. Consequently our scheme can aid eavesdropper to gather much more useful information.