  Quantum resources, such as coherence, discord, and entanglement, play as a
key role for demonstrating advantage in many computation and communication
tasks. In order to find the nature behind these resources, tremendous efforts
have been made to explore the connections between them. In this work, we extend
the single party coherence resource framework to the distributed scenario and
relate it to basis-dependent discord. We show the operational meaning of
basis-dependent discord in quantum key distribution. By formulating a framework
of basis-dependent discord, we connect these quantum resources, coherence,
discord, and entanglement, quantitatively, which leads to a unification of
measures of different quantum resources.
