Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Secret Key Generation with One Communicator and a One-Shot Converse via
  Hypercontractivity   A new model of multi-party secret key agreement is proposed, in which one
terminal called the communicator can transmit public messages to other
terminals before all terminals agree on a secret key. A single-letter
characterization of the achievable region is derived in the stationary
memoryless case. The new model generalizes some other (old and new) models of
key agreement. In particular, key generation with an omniscient helper is the
special case where the communicator knows all sources, for which we derive a
zero-rate one-shot converse for the secret key per bit of communication.

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The categories of this paper are: q-bio
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: gr-qc
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The categories of this paper are: solv-int
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: physics