<s>
LonTalk	B-Protocol
is	O
a	O
networking	O
protocol	O
.	O
</s>
<s>
Originally	O
developed	O
by	O
Echelon	O
Corporation	O
for	O
networking	O
devices	O
over	O
media	O
such	O
as	O
twisted	O
pair	O
,	O
powerlines	O
,	O
fiber	B-Architecture
optics	I-Architecture
,	O
and	O
RF	O
.	O
</s>
<s>
Published	O
through	O
ISO/IEC	O
JTC	O
1/SC	O
6	O
,	O
this	O
standard	O
specifies	O
a	O
multi-purpose	O
control	O
network	O
protocol	O
stack	O
optimized	O
for	O
smart	O
grid	O
,	O
smart	O
building	O
,	O
and	O
smart	B-Device
city	I-Device
applications	O
.	O
</s>
<s>
LonTalk	B-Protocol
is	O
part	O
of	O
the	O
technology	O
platform	O
called	O
LonWorks	O
.	O
</s>
<s>
The	O
LonTalk	B-Protocol
protocol	O
has	O
also	O
been	O
ratified	O
by	O
standards	O
setting	O
bodies	O
in	O
the	O
following	O
industries	O
&	O
regions	O
:	O
</s>
<s>
An	O
April	O
2015	O
cryptanalysis	O
paper	O
claims	O
to	O
have	O
found	O
serious	O
security	O
flaws	O
in	O
the	O
OMA	O
Digest	O
algorithm	O
of	O
the	O
Open	O
Smart	O
Grid	O
Protocol	O
,	O
which	O
itself	O
is	O
built	O
on	O
the	O
same	O
EN	O
14908	O
foundations	O
as	O
LonTalk	B-Protocol
.	O
</s>
<s>
The	O
authors	O
speculate	O
that	O
"	O
every	O
other	O
LonTalk-derived	O
standard	O
"	O
is	O
similarly	O
vulnerable	O
to	O
the	O
key-recovery	O
attacks	O
described	O
.	O
</s>
