<s>
WireGuard	B-Application
is	O
a	O
communication	O
protocol	O
and	O
free	B-License
and	I-License
open-source	I-License
software	I-License
that	O
implements	O
encrypted	O
virtual	B-Application
private	I-Application
networks	I-Application
(	O
VPNs	B-Application
)	O
,	O
and	O
was	O
designed	O
with	O
the	O
goals	O
of	O
ease	O
of	O
use	O
,	O
high	O
speed	O
performance	O
,	O
and	O
low	O
attack	O
surface	O
.	O
</s>
<s>
It	O
aims	O
for	O
better	O
performance	O
and	O
more	O
power	O
than	O
IPsec	B-Protocol
and	O
OpenVPN	B-Language
,	O
two	O
common	O
tunneling	B-Protocol
protocols	I-Protocol
.	O
</s>
<s>
The	O
WireGuard	B-Application
protocol	O
passes	O
traffic	O
over	O
UDP	B-Protocol
.	O
</s>
<s>
In	O
March	O
2020	O
,	O
the	O
Linux	B-Application
version	O
of	O
the	O
software	O
reached	O
a	O
stable	O
production	O
release	O
and	O
was	O
incorporated	O
into	O
the	O
Linux	B-Application
5.6	O
kernel	O
,	O
and	O
backported	O
to	O
earlier	O
Linux	B-Application
kernels	O
in	O
some	O
Linux	B-Application
distributions	I-Application
.	O
</s>
<s>
The	O
Linux	B-Application
kernel	O
components	O
are	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
(	O
GPL	B-License
)	O
version	O
2	O
;	O
other	O
implementations	O
are	O
under	O
GPLv2	O
or	O
other	O
free/open	O
-source	O
licenses	O
.	O
</s>
<s>
WireGuard	B-Application
uses	O
the	O
following	O
:	O
</s>
<s>
In	O
May	O
2019	O
,	O
researchers	O
from	O
INRIA	O
published	O
a	O
machine-checked	O
proof	O
of	O
the	O
WireGuard	B-Application
protocol	O
,	O
produced	O
using	O
the	O
CryptoVerif	O
proof	O
assistant	O
.	O
</s>
<s>
WireGuard	B-Application
supports	O
pre-shared	O
symmetric	B-Algorithm
key	I-Algorithm
mode	O
,	O
which	O
provides	O
an	O
additional	O
layer	O
of	O
symmetric	B-Algorithm
encryption	I-Algorithm
to	O
mitigate	O
future	O
advances	O
in	O
quantum	O
computing	O
.	O
</s>
<s>
Pre-shared	O
keys	O
are	O
"	O
usually	O
troublesome	O
from	O
a	O
key	O
management	O
perspective	O
and	O
might	O
be	O
more	O
likely	O
stolen	O
"	O
,	O
but	O
in	O
the	O
shorter	O
term	O
,	O
if	O
the	O
symmetric	B-Algorithm
key	I-Algorithm
is	O
compromised	O
,	O
the	O
Curve25519	O
keys	O
still	O
provide	O
more	O
than	O
sufficient	O
protection	O
.	O
</s>
<s>
WireGuard	B-Application
uses	O
only	O
UDP	B-Protocol
,	O
due	O
to	O
the	O
potential	O
disadvantages	O
of	O
TCP-over-TCP	O
.	O
</s>
<s>
WireGuard	B-Application
fully	O
supports	O
IPv6	B-Protocol
,	O
both	O
inside	O
and	O
outside	O
of	O
tunnel	O
.	O
</s>
<s>
It	O
supports	O
only	O
layer	B-Application
3	I-Application
for	O
both	O
IPv4	B-Protocol
and	O
IPv6	B-Protocol
and	O
can	O
encapsulate	B-Protocol
v4-in-v6	O
and	O
vice	O
versa	O
.	O
</s>
<s>
WireGuard	B-Application
is	O
designed	O
to	O
be	O
extended	O
by	O
third-party	O
programmes	O
and	O
scripts	O
.	O
</s>
<s>
This	O
has	O
been	O
used	O
to	O
augment	O
WireGuard	B-Application
with	O
various	O
features	O
including	O
more	O
user-friendly	O
management	O
interfaces	O
(	O
including	O
easier	O
setting	O
up	O
of	O
keys	O
)	O
,	O
logging	O
,	O
dynamic	O
firewall	O
updates	O
,	O
and	O
LDAP	O
integration	O
.	O
</s>
<s>
For	O
ensuring	O
security	O
,	O
WireGuard	B-Application
restricts	O
the	O
options	O
for	O
implementing	O
cryptographic	O
controls	O
,	O
limits	O
the	O
choices	O
for	O
key	O
exchange	O
processes	O
,	O
and	O
maps	O
algorithms	O
to	O
a	O
small	O
subset	O
of	O
modern	O
cryptographic	O
primitives	O
.	O
</s>
<s>
A	O
review	O
by	O
Ars	O
Technica	O
found	O
that	O
WireGuard	B-Application
was	O
easy	O
to	O
setup	O
and	O
use	O
,	O
used	O
strong	O
ciphers	O
,	O
and	O
had	O
a	O
minimal	O
codebase	O
that	O
provided	O
for	O
a	O
small	O
attack	O
surface	O
.	O
</s>
<s>
WireGuard	B-Application
has	O
received	O
funding	O
from	O
the	O
Open	O
Technology	O
Fund	O
.	O
</s>
<s>
and	O
donations	O
from	O
Mullvad	B-Application
,	O
Private	B-Application
Internet	I-Application
Access	I-Application
,	O
IVPN	B-Application
,	O
the	O
NLnet	O
Foundation	O
and	O
OVPN	O
.	O
</s>
<s>
Oregon	O
senator	O
Ron	O
Wyden	O
has	O
recommended	O
to	O
the	O
National	O
Institute	O
of	O
Standards	O
and	O
Technology	O
(	O
NIST	O
)	O
that	O
they	O
evaluate	O
WireGuard	B-Application
as	O
a	O
replacement	O
for	O
existing	O
technologies	O
.	O
</s>
<s>
Implementations	O
of	O
the	O
WireGuard	B-Application
protocol	O
include	O
:	O
</s>
<s>
Donenfeld	O
's	O
initial	O
implementation	O
,	O
written	O
in	O
C	B-Language
and	O
Go	B-Application
.	O
</s>
<s>
Cloudflare	B-Application
's	O
BoringTun	O
,	O
a	O
user	B-Operating_System
space	I-Operating_System
implementation	O
written	O
in	O
Rust	B-Application
.	O
</s>
<s>
Matt	O
Dunwoodie	O
's	O
implementation	O
for	O
OpenBSD	B-Operating_System
,	O
written	O
in	O
C	B-Language
.	O
</s>
<s>
Ryota	O
Ozaki	O
's	O
wg(4 )	O
implementation	O
,	O
for	O
NetBSD	B-Device
,	O
is	O
written	O
in	O
C	B-Language
.	O
</s>
<s>
The	O
FreeBSD	B-Operating_System
implementation	O
is	O
written	O
in	O
C	B-Language
and	O
shares	O
most	O
of	O
the	O
data	O
path	O
with	O
the	O
OpenBSD	B-Operating_System
implementation	O
.	O
</s>
<s>
Native	O
Windows	B-Application
kernel	O
implementation	O
named	O
"	O
wireguard-nt	O
"	O
,	O
since	O
August	O
2021	O
.	O
</s>
<s>
OPNsense	B-Protocol
via	O
standard	O
package	O
os-WireGuard	O
.	O
</s>
<s>
pfSense	B-Protocol
via	O
experimental	O
add-on	O
package	O
on	O
pfSense	B-Protocol
Plus	O
21.05	O
,	O
pfSense	B-Protocol
CE	O
2.5.2	O
,	O
and	O
later	O
versions	O
.	O
</s>
<s>
Four	O
early	O
adopters	O
of	O
WireGuard	B-Application
were	O
the	O
VPN	B-Application
service	I-Application
providers	I-Application
Mullvad	B-Application
,	O
AzireVPN	O
,	O
IVPN	B-Application
and	O
cryptostorm	O
.	O
</s>
<s>
On	O
9	O
December	O
2019	O
,	O
David	O
Miller	O
–	O
primary	O
maintainer	O
of	O
the	O
Linux	B-Application
networking	O
stack	O
–	O
accepted	O
the	O
WireGuard	B-Application
patches	O
into	O
the	O
"	O
net-next	O
"	O
maintainer	O
tree	O
,	O
for	O
inclusion	O
in	O
an	O
upcoming	O
kernel	O
.	O
</s>
<s>
On	O
28	O
January	O
2020	O
,	O
Linus	O
Torvalds	O
merged	O
David	O
Miller	O
's	O
net-next	O
tree	O
,	O
and	O
WireGuard	B-Application
entered	O
the	O
mainline	O
Linux	B-Application
kernel	O
tree	O
.	O
</s>
<s>
On	O
20	O
March	O
2020	O
,	O
Debian	O
developers	O
enabled	O
the	O
module	O
build	O
options	O
for	O
WireGuard	B-Application
in	O
their	O
kernel	O
config	O
for	O
the	O
Debian	O
11	O
version	O
(	O
testing	O
)	O
.	O
</s>
<s>
On	O
29	O
March	O
2020	O
WireGuard	B-Application
was	O
incorporated	O
into	O
the	O
Linux	B-Application
5.6	O
release	O
tree	O
.	O
</s>
<s>
The	O
Windows	B-Application
version	O
of	O
the	O
software	O
remains	O
at	O
beta	O
.	O
</s>
<s>
On	O
30	O
March	O
2020	O
,	O
Android	B-Application
developers	O
added	O
native	O
kernel	O
support	O
for	O
WireGuard	B-Application
in	O
their	O
Generic	O
Kernel	O
Image	O
.	O
</s>
<s>
On	O
22	O
April	O
2020	O
,	O
NetworkManager	B-Protocol
developer	O
Beniamino	O
Galvani	O
merged	O
GUI	B-Application
support	O
for	O
WireGuard	B-Application
.	O
</s>
<s>
On	O
12	O
May	O
2020	O
,	O
Matt	O
Dunwoodie	O
proposed	O
patches	O
for	O
native	O
kernel	O
support	O
of	O
WireGuard	B-Application
in	O
OpenBSD	B-Operating_System
.	O
</s>
<s>
On	O
22	O
June	O
2020	O
,	O
after	O
the	O
work	O
of	O
Matt	O
Dunwoodie	O
and	O
Jason	O
A	O
.	O
Donenfeld	O
,	O
WireGuard	B-Application
support	O
was	O
imported	O
into	O
OpenBSD	B-Operating_System
.	O
</s>
<s>
On	O
23	O
November	O
2020	O
,	O
Jason	O
A	O
.	O
Donenfeld	O
released	O
an	O
update	O
of	O
the	O
Windows	B-Application
package	O
improving	O
installation	O
,	O
stability	O
,	O
ARM	B-Architecture
support	O
,	O
and	O
enterprise	B-Application
features	O
.	O
</s>
<s>
On	O
29	O
November	O
2020	O
,	O
WireGuard	B-Application
support	O
was	O
imported	O
into	O
the	O
FreeBSD	B-Operating_System
13	O
kernel	O
.	O
</s>
<s>
On	O
19	O
January	O
2021	O
,	O
WireGuard	B-Application
support	O
was	O
added	O
for	O
preview	O
in	O
pfSense	B-Protocol
Community	O
Edition	O
(	O
CE	O
)	O
2.5.0	O
development	O
snapshots	O
.	O
</s>
<s>
In	O
March	O
2021	O
,	O
kernel-mode	O
WireGuard	B-Application
support	O
was	O
removed	O
from	O
FreeBSD	B-Operating_System
13.0	O
,	O
still	O
in	O
testing	O
,	O
after	O
an	O
urgent	O
code	O
cleanup	O
in	O
FreeBSD	B-Operating_System
WireGuard	B-Application
could	O
not	O
be	O
completed	O
quickly	O
.	O
</s>
<s>
FreeBSD-based	O
pfSense	B-Protocol
Community	O
Edition	O
(	O
CE	O
)	O
2.5.0	O
and	O
pfSense	B-Protocol
Plus	O
21.02	O
removed	O
kernel-based	O
WireGuard	B-Application
as	O
well	O
.	O
</s>
<s>
In	O
May	O
2021	O
,	O
WireGuard	B-Application
support	O
was	O
re-introduced	O
back	O
into	O
pfSense	B-Protocol
CE	O
and	O
pfSense	B-Protocol
Plus	O
development	O
snapshots	O
as	O
an	O
experimental	O
package	O
written	O
by	O
a	O
member	O
of	O
the	O
pfSense	B-Protocol
community	O
,	O
Christian	O
McDonald	O
.	O
</s>
<s>
The	O
WireGuard	B-Application
package	O
for	O
pfSense	B-Protocol
incorporates	O
the	O
ongoing	O
kernel-mode	O
WireGuard	B-Application
development	O
work	O
by	O
Jason	O
A	O
.	O
Donenfeld	O
that	O
was	O
originally	O
sponsored	O
by	O
Netgate	O
.	O
</s>
<s>
In	O
June	O
2021	O
,	O
the	O
official	O
package	O
repositories	O
for	O
both	O
pfSense	B-Protocol
CE	O
2.5.2	O
and	O
pfSense	B-Protocol
Plus	O
21.05	O
included	O
the	O
WireGuard	B-Application
package	O
.	O
</s>
