[20p-W541-1~16] 3.10 Optical quantum physics and technologies

[20p-W541-7] Analysis for amount of eavesdropping on Bennett 1992

〇Toshiyuki Nakamura¹, Kensuke Nakata¹, Kazuhisa Ogawa¹, Atsushi Okamoto¹, Akihisa Tomita¹ (1.Hokkaido Univ.)

Keywords:QIT,Quantum Cryptography

Recently, Round-Robin DPS-QKD has attracted research interest, because it provides unconditional security without monitoring. This protocol have benefits. For example, estimated amount of eavesdropping does not affected by bit errors from imperfect devices. We have a similar nature and this protocol, there is interested in the implementation constitute an easy protocol. Therefore, we focused on Bennett 1992 (B92) protocol, in Intercept / resend attack, we showed that the amount of eavesdropping with respect to the average number of photons.