Who knows. Seems like the nosecone and leading edges is one way to design for hypersonic cruise missile intakes. May be using scramjets which take over for propulsion once the rocket booster drops away after delivering to appropriate altitude and speed. Could just be converging engineering like what we see with HGVs, at least when it comes to artist renderings of various kinds of HGVs from Russia, China, and the US. From the comparisons of the Xing Kong test, it seems the DF-100 is actually a version of that or at least something that shares its overall shaping. The DF-100 has extended stabilisers/wing roots and seems to have those scramjet/ramjet intakes similar in layout with the Russian Kh series.Did the Chinese found this and decided to try and build a similar missile themselves to see if it actually work or if it is Boeing's bullshit?