Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bounds on Information and the Security of Quantum Cryptography   Strong attacks against quantum key distribution use quantum memories and
quantum gates to attack directly the final key. In this paper we extend a novel
security result recently obtained, to demonstrate proofs of security against a
wide class of such attacks. To reach this goal we calculate
information-dependent reduced density matrices, we study the geometry of
quantum mixed states, and we find bounds on the information leaked to an
eavesdropper. Our result suggests that quantum cryptography is ultimately
secure.

21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess