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Title:
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Secrecy gain of Gaussian wiretap codes from unimodular lattices.
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Author:
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Lin, Fuchun.; Oggier, Frederique.
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Copyright year:
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2011 |
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Abstract:
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We consider lattice coding over a Gaussian wiretap
channel, where an eavesdropper listens to the transmissions
between a transmitter and a legitimate receiver. In [1], a new
lattice invariant called the secrecy gain was introduced as a code
design criterion for wiretap lattice codes, shown to characterize
the confusion that a chosen lattice code can cause at the
eavesdropper: the higher the secrecy gain of the lattice, the
more confusion. In this paper, a formula for the secrecy gain
of unimodular lattices is derived. Secrecy gains of extremal odd
unimodular lattices as well as unimodular lattices in dimension
16 are computed and compared. Finally, best wiretap lattice codes
coming from unimodular lattices in dimension n, 8 ≤ n ≤ 16
are classified. |
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Subject:
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DRNTU::Science::Mathematics::Discrete mathematics::Cryptography. |
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Type:
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Conference Paper |
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Conference name:
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Information Theory Workshop |
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School:
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School of Physical and Mathematical Sciences |
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Related Organization:
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Singapore National Research Foundation |
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Rights:
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© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: [DOI: http://dx.doi.org/10.1109/ITW.2011.6089529 ] |
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Version:
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Accepted version |
