<s>
The	O
Odette	B-Protocol
File	I-Protocol
Transfer	I-Protocol
Protocol	I-Protocol
(	O
OFTP	B-Protocol
)	O
is	O
a	O
protocol	O
created	O
in	O
1986	O
,	O
used	O
for	O
EDI	O
(	O
Electronic	O
Data	O
Interchange	O
)	O
between	O
two	O
communications	O
business	O
partners	O
.	O
</s>
<s>
The	O
ODETTE	B-Protocol
File	I-Protocol
Transfer	I-Protocol
Protocol	I-Protocol
(	O
ODETTE-FTP	O
)	O
was	O
defined	O
in	O
1986	O
by	O
working	O
group	O
four	O
of	O
the	O
Organisation	O
for	O
Data	O
Exchange	O
by	O
Tele-Transmission	O
in	O
Europe	O
(	O
ODETTE	O
)	O
to	O
address	O
the	O
electronic	O
data	O
interchange	O
(	O
EDI	O
)	O
requirements	O
of	O
the	O
European	O
automotive	O
industry	O
.	O
</s>
<s>
It	O
was	O
designed	O
in	O
the	O
spirit	O
of	O
the	O
Open	O
System	O
Interconnection	O
(	O
OSI	O
)	O
model	O
utilising	O
the	O
Network	O
Service	O
provided	O
by	O
the	O
CCITT	B-Protocol
X.25	I-Protocol
recommendation	I-Protocol
.	O
</s>
<s>
OFTP	B-Protocol
2	O
was	O
written	O
in	O
2007	O
by	O
,	O
as	O
a	O
specification	O
for	O
the	O
secure	O
transfer	O
of	O
business	O
documents	O
over	O
the	O
Internet	O
,	O
ISDN	B-Protocol
and	O
X.25	B-Protocol
networks	O
.	O
</s>
<s>
A	O
description	O
of	O
OFTP	B-Protocol
1.3	O
can	O
be	O
found	O
in	O
RFC	O
2204	O
,	O
whilst	O
OFTP	B-Protocol
2	O
is	O
defined	O
in	O
RFC	O
5024	O
.	O
</s>
<s>
OFTP	B-Protocol
2	O
can	O
work	O
point-to-point	B-Protocol
or	O
indirectly	O
via	O
a	O
VAN	O
(	O
Value	O
Added	O
Network	O
)	O
.	O
</s>
<s>
A	O
single	O
OFTP	B-Protocol
2	O
entity	O
can	O
make	O
and	O
receive	O
calls	O
,	O
exchanging	O
files	B-Operating_System
in	O
both	O
directions	O
.	O
</s>
<s>
This	O
means	O
that	O
OFTP	B-Protocol
2	O
can	O
work	O
in	O
a	O
push	O
or	O
pull	O
mode	O
,	O
as	O
opposed	O
to	O
AS2	B-Protocol
,	O
which	O
can	O
only	O
work	O
in	O
a	O
push	O
mode	O
.	O
</s>
<s>
OFTP	B-Protocol
2	O
can	O
encrypt	O
and	O
digitally	O
sign	O
message	O
data	O
,	O
request	O
signed	O
receipts	O
and	O
also	O
offers	O
high	O
levels	O
of	O
data	B-General_Concept
compression	I-General_Concept
.	O
</s>
<s>
All	O
of	O
these	O
services	O
are	O
available	O
when	O
using	O
OFTP	B-Protocol
2	O
over	O
TCP/IP	B-Protocol
,	O
X.25/ISDN	O
or	O
native	O
X.25	B-Protocol
.	O
</s>
<s>
When	O
used	O
over	O
a	O
TCP/IP	B-Protocol
network	I-Protocol
such	O
as	O
the	O
Internet	O
,	O
additional	O
session	O
level	O
security	O
is	O
available	O
by	O
using	O
OFTP	B-Protocol
2	O
over	O
Transport	B-Protocol
Layer	I-Protocol
Security	I-Protocol
(	O
TLS	O
)	O
.	O
</s>
