Fundamental and practical problems of QKD security: the actual and perceived situation
Horace P. Yuen · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2011
It is widely believed that quantum key distribution (QKD) has been proved unconditionally secure for realistic models applicable to various current experimental schemes. Here we summarize briefly why this is not the case, from both the viewpoints of fundamental quantitative security and applicable models of security analysis, with some morals drawn.