Universal coding for transmission of private information
arXiv:1007.2629 · doi:10.1063/1.3521499
Abstract
We consider the scenario in which Alice transmits private classical messages to Bob via a classical-quantum channel, part of whose output is intercepted by an eavesdropper, Eve. We prove the existence of a universal coding scheme under which Alice's messages can be inferred correctly by Bob, and yet Eve learns nothing about them. The code is universal in the sense that it does not depend on specific knowledge of the channel. Prior knowledge of the probability distribution on the input alphabet of the channel, and bounds on the corresponding Holevo quantities of the output ensembles at Bob's and Eve's end suffice.
31 pages, no figures. Published version
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- Classical-Quantum Arbitrarily Varying Wiretap Channel: Secret Message Transmission under Jamming Attacks
- Universal superposition codes: capacity regions of compound quantum broadcast channel with confidential messages
- Universal random codes: Capacity regions of the compound quantum multiple-access channel with one classical and one quantum sender
- Arbitrarily varying and compound classical-quantum channels and a note on quantum zero-error capacities