Reference-frame-independent quantum key distribution with an untrusted source<xref rid="cpb_29_3_030303fn1" ref-type="fn">*</xref><fn id="cpb_29_3_030303fn1"><label>*</label><p>Project supported by the National Basic Research Program of China (Grant No. 2013CB338002) and the National Natural Science Foundation of China (Grant Nos. 61505261, 61675235, 61605248, and 11304397).</p></fn>

Reference-frame-independent quantum key distribution with an untrusted source**

Project supported by the National Basic Research Program of China (Grant No. 2013CB338002) and the National Natural Science Foundation of China (Grant Nos. 61505261, 61675235, 61605248, and 11304397).

Li Jia-Ji^{1, 2}, Wang Yang^{1, 2}, Li Hong-Wei^{1, 2}, Bao Wan-Su^{1, 2, †}

Schematic diagram of the QKD scheme with a passive estimate on an untrusted source.