Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unconditionally secure relativistic multi-party biased coin flipping and
  die rolling   We introduce relativistic multi-party biased die rolling protocols,
generalizing coin flipping to $M \geq 2$ parties and to $N \geq 2$ outcomes for
any chosen outcome biases, and show them unconditionally secure. Our results
prove that the most general random secure multi-party computation, where all
parties receive the output and there is no secret input by any party, can be
implemented with unconditional security. Our protocols extend Kent's [A. Kent,
Phys. Rev. Lett. 83, 5382 (1999)] two-party unbiased coin flipping protocol, do
not require any quantum communication, are practical to implement with current
technology, and to our knowledge are the first multi-party relativistic
cryptographic protocols.

1
The categories of this paper are: cs
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: cond-mat
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol