%0 Journal Article %T Enhancing the security of quantum secret sharing against multiphoton attack
%A Zhang Bin-Bin %A Wang Da-Qing %A Huang Shan-Shan %A Liu Yu %A
%J 中国物理 B %D 2009 %I %X It is generally believed that nonorthogonal operations which can realize the state transformation between two nonorthogonal bases may ensure the security of many quantum communication protocols. However, in this paper, we present a powerful attack against quantum secret sharing protocols of these kinds. Applying entangled photons as fake signals, Eve can successfully steal the exact information without being revealed. We also give our effective modification to improve it. Under the suggested checking strategy, even to Eve's most general attack, it is robust and secure. %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=EB4011404715C4186504696A0D454284&yid=DE12191FBD62783C&vid=13553B2D12F347E8&iid=B31275AF3241DB2D&sid=49A922F48C3B1A31&eid=8BA849EBE34B1882&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0