%0 Journal Article
%T Quantum Overloading Cryptography Using Single-Photon Nonlocality
%A TAN Yong-Gang
%A CAI Qing-Yu
%A SHI Ting-Yun
%A <br>谭勇刚
%A 蔡庆宇
%A 史庭云
%J 中国物理快报
%D 2007
%I 
%X Using the single-photon nonlocality, we propose a quantum novel overloading cryptography scheme, in which a single photon carries two bits information in one-way quantum channel. Two commutative modes of the single photon, the polarization mode and the spatial mode, are used to encode secret information. Strict time windows are set to detect the impersonation attack. The spatial mode which denotes the existence of photons is noncommutative with the phase of the photon, so that our scheme is secure against photon-number-splitting attack. Our protocol may be secure against individual attack.
%K 03
%K 67
%K Dd
%K 03
%K 65
%K Ud<br>量子载体
%K 密码学
%K 量子光学
%K 光学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=03664AC44D48081830FF7A8F2129DCE4&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=5D311CA918CA9A03&sid=134BC367A8A9EB5A&eid=9D10F378015F2AC2&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0