Secure Big Data
Rice University researchers have developed full-duplex wireless technology
that could double network traffic
Full-Duplex Boosts Network Traffic
RICE UNIVERSIT Y researchers have developed full-duplex wireless technology that they say could ouble network traffic — at a low
cost, with little need for new hardware and
without much disruption in service.
Full-duplex allows a cell phone or other
mobile device to send and receive data
on the same frequency. Today’s networks
require separate frequencies for each action.
One downside is that the national wireless
carriers aren’t ready to roll this out, and may
not be for several years. Though full-duplex
technology doesn’t need new cell towers, it
does require new industry standards.
The earliest it would be implemented is
most likely with 5G, or fifth-generation,
networks. Most major U.S. carriers are just
starting to deploy 4G networks — though
Sprint’s WiMax 4G network is more fully
developed than competing offerings.
The National Security Agency has
submitted its new, label-based
data store software to the Apache
Software Foundation, in hopes that
others will further develop it for use
in secure systems.
Called Accumulo, the software
uses “expressive, fine-grained”
labels that can tag each cell in a data
store. Security policies can then be
applied to the individual labels to, for
example, allow an external server to
access some cells but not others.
Based on Google’s Big Table
design, Accumulo is a simple key/
value data store, where providing the system with the key will
return any data associated with
that key. Featuring a distributed
design, Accumulo can be run across
multiple servers, making it a good
candidate for managing big data
systems, the NSA said.
“The access labels in Accumulo do
not in themselves provide a complete security solution, but are a
mechanism for labeling each piece of
data with the authorizations that are
necessary to see it,” the NSA said in
its proposal to Apache.
With improvements from other
developers, Accumulo could be
capable of serving
as the foundation
of data stores
used by healthcare
companies, government agencies
and other organizations that must
meet stringent security and privacy
requirements, the NSA said.