<s>
Network	B-Protocol
Security	I-Protocol
Services	I-Protocol
(	O
NSS	O
)	O
is	O
a	O
collection	O
of	O
cryptographic	O
computer	B-Library
libraries	I-Library
designed	O
to	O
support	O
cross-platform	B-Operating_System
development	O
of	O
security-enabled	O
client	O
and	O
server	O
applications	O
with	O
optional	O
support	O
for	O
hardware	O
TLS/SSL	B-Protocol
acceleration	I-Protocol
on	O
the	O
server	O
side	O
and	O
hardware	O
smart	O
cards	O
on	O
the	O
client	O
side	O
.	O
</s>
<s>
NSS	O
provides	O
a	O
complete	O
open-source	B-Application
implementation	O
of	O
cryptographic	O
libraries	B-Library
supporting	O
Transport	B-Protocol
Layer	I-Protocol
Security	I-Protocol
(	O
TLS	B-Protocol
)	O
/	O
Secure	B-Protocol
Sockets	I-Protocol
Layer	I-Protocol
(	O
SSL	B-Protocol
)	O
and	O
S/MIME	B-Protocol
.	O
</s>
<s>
NSS	O
releases	O
prior	O
to	O
version	O
3.14	O
are	O
tri-licensed	B-License
under	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
1.1	O
,	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
,	O
and	O
the	O
GNU	B-Application
Lesser	I-Application
General	I-Application
Public	I-Application
License	I-Application
.	O
</s>
<s>
Since	O
release	O
3.14	O
,	O
NSS	O
releases	O
are	O
licensed	O
under	O
GPL-compatible	O
Mozilla	B-License
Public	I-License
License	I-License
2.0	I-License
.	O
</s>
<s>
NSS	O
originated	O
from	O
the	O
libraries	B-Library
developed	O
when	O
Netscape	B-Protocol
invented	O
the	O
SSL	B-Protocol
security	O
protocol	O
.	O
</s>
<s>
The	O
NSS	O
libraries	B-Library
passed	O
the	O
NISCC	O
TLS/SSL	B-Protocol
and	O
S/MIME	B-Protocol
test	O
suites	O
(	O
1.6	O
million	O
test	O
cases	O
of	O
invalid	O
input	O
data	O
)	O
.	O
</s>
<s>
AOL	O
,	O
Red	O
Hat	O
,	O
Sun	O
Microsystems/Oracle	O
Corporation	O
,	O
Google	B-Application
and	O
other	O
companies	O
and	O
individual	O
contributors	O
have	O
co-developed	O
NSS	O
.	O
</s>
<s>
Mozilla	B-Operating_System
provides	O
the	O
source	O
code	O
repository	O
,	O
bug	O
tracking	O
system	O
,	O
and	O
infrastructure	O
for	O
mailing	O
lists	O
and	O
discussion	O
groups	O
.	O
</s>
<s>
Mozilla	B-Operating_System
client	O
products	O
,	O
including	O
Firefox	B-Application
,	O
Thunderbird	B-Application
,	O
SeaMonkey	B-Language
,	O
and	O
Firefox	B-Application
for	I-Application
mobile	I-Application
.	O
</s>
<s>
Open	O
source	O
client	O
applications	O
such	O
as	O
Evolution	B-Language
,	O
Pidgin	B-Protocol
,	O
and	O
OpenOffice.org	B-Application
2.0	I-Application
onward	O
(	O
and	O
its	O
descendants	O
)	O
.	O
</s>
<s>
Server	O
products	O
from	O
Red	O
Hat	O
:	O
Red	O
Hat	O
Directory	O
Server	O
,	O
Red	O
Hat	O
Certificate	O
System	O
,	O
and	O
the	O
mod	B-Application
nss	I-Application
SSL	I-Application
module	I-Application
for	O
the	O
Apache	B-Application
web	I-Application
server	I-Application
.	O
</s>
<s>
Sun	O
server	O
products	O
from	O
the	O
Sun	B-Application
Java	I-Application
Enterprise	I-Application
System	I-Application
,	O
including	O
Sun	B-Language
Java	I-Language
System	I-Language
Web	I-Language
Server	I-Language
,	O
Sun	B-Application
Java	I-Application
System	I-Application
Directory	I-Application
Server	I-Application
,	O
Sun	B-Language
Java	I-Language
System	I-Language
Portal	I-Language
Server	I-Language
,	O
Sun	B-Application
Java	I-Application
System	I-Application
Messaging	I-Application
Server	I-Application
,	O
and	O
Sun	B-Language
Java	I-Language
System	I-Language
Application	I-Language
Server	I-Language
,	O
open	O
source	O
version	O
of	O
Directory	O
Server	O
OpenDS	B-Language
.	O
</s>
<s>
Libreswan	B-Application
IKE/IPsec	O
requires	O
NSS	O
.	O
</s>
<s>
NSS	O
includes	O
a	O
framework	O
to	O
which	O
developers	O
and	O
OEMs	O
can	O
contribute	O
patches	O
,	O
such	O
as	O
assembly	B-Language
code	I-Language
,	O
to	O
optimize	O
performance	O
on	O
their	O
platforms	O
.	O
</s>
<s>
Mozilla	B-Operating_System
has	O
certified	O
NSS	O
3.x	O
on	O
18	O
platforms	O
.	O
</s>
<s>
NSS	O
makes	O
use	O
of	O
Netscape	B-Application
Portable	I-Application
Runtime	I-Application
(	O
NSPR	B-Application
)	O
,	O
a	O
platform-neutral	O
open-source	B-Application
API	O
for	O
system	O
functions	O
designed	O
to	O
facilitate	O
cross-platform	B-Operating_System
development	O
.	O
</s>
<s>
Like	O
NSS	O
,	O
NSPR	B-Application
has	O
been	O
used	O
heavily	O
in	O
multiple	O
products	O
.	O
</s>
<s>
In	O
addition	O
to	O
libraries	B-Library
and	O
APIs	O
,	O
NSS	O
provides	O
security	O
tools	O
required	O
for	O
debugging	O
,	O
diagnostics	O
,	O
certificate	O
and	O
key	O
management	O
,	O
cryptography-module	O
management	O
,	O
and	O
other	O
development	O
tasks	O
.	O
</s>
<s>
Programmers	O
can	O
utilize	O
NSS	O
as	O
source	O
and	O
as	O
shared	O
(	O
dynamic	O
)	O
libraries	B-Library
.	O
</s>
<s>
Every	O
NSS	O
release	O
is	O
backward-compatible	O
with	O
previous	O
releases	O
,	O
allowing	O
NSS	O
users	O
to	O
upgrade	O
to	O
new	O
NSS	O
shared	O
libraries	B-Library
without	O
recompiling	O
or	O
relinking	O
their	O
applications	O
.	O
</s>
<s>
TLS	B-Protocol
1.0	O
(	O
RFC	O
2246	O
)	O
,	O
1.1	O
(	O
RFC	O
4346	O
)	O
,	O
1.2	O
(	O
RFC	O
5246	O
)	O
,	O
and	O
1.3	O
(	O
RFC	O
8446	O
)	O
.	O
</s>
<s>
The	O
Transport	B-Protocol
Layer	I-Protocol
Security	I-Protocol
(	O
TLS	B-Protocol
)	O
protocol	O
from	O
the	O
IETF	O
supersedes	O
SSL	B-Protocol
v3.0	O
while	O
remaining	O
backward-compatible	O
with	O
SSL	B-Protocol
v3	O
implementations	O
.	O
</s>
<s>
SSL	B-Protocol
3.0	O
.	O
</s>
<s>
The	O
Secure	B-Protocol
Sockets	I-Protocol
Layer	I-Protocol
(	O
SSL	B-Protocol
)	O
protocol	O
allows	O
mutual	O
authentication	O
between	O
a	O
client	O
and	O
server	O
and	O
the	O
establishment	O
of	O
an	O
authenticated	O
and	O
encrypted	O
connection	O
.	O
</s>
<s>
DTLS	B-Protocol
1.0	O
(	O
RFC	O
4347	O
)	O
and	O
1.2	O
(	O
RFC	O
6347	O
)	O
.	O
</s>
<s>
DTLS-SRTP	O
(	O
RFC	O
5764	O
)	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
implementation	O
of	O
public-key	O
cryptography	O
based	O
on	O
the	O
RSA	B-Architecture
algorithm	I-Architecture
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
implementation	O
of	O
Diffie	B-Protocol
–	I-Protocol
Hellman	I-Protocol
key	O
agreement	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
password-based	O
cryptography	O
,	O
for	O
example	O
to	O
encrypt	O
private	O
keys	O
for	O
storage	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
the	O
application	O
of	O
cryptography	O
to	O
data	O
,	O
for	O
example	O
digital	O
signatures	O
and	O
digital	O
envelopes	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
the	O
storage	O
and	O
encryption	O
of	O
private	O
keys	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
selected	O
attribute	O
types	O
,	O
including	O
those	O
used	O
with	O
PKCS	O
#7	O
,	O
PKCS	O
#8	O
,	O
and	O
PKCS	O
#10	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
the	O
syntax	O
for	O
certificate	O
requests	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
communication	O
with	O
cryptographic	O
tokens	O
(	O
such	O
as	O
hardware	O
accelerators	O
and	O
smart	O
cards	O
)	O
and	O
permits	O
application	O
independence	O
from	O
specific	O
algorithms	O
and	O
implementations	O
.	O
</s>
<s>
RSA	B-Architecture
standard	O
that	O
governs	O
the	O
format	O
used	O
to	O
store	O
or	O
transport	O
private	O
keys	O
,	O
certificates	O
,	O
and	O
other	O
secret	O
material	O
.	O
</s>
<s>
Cryptographic	B-Protocol
Message	I-Protocol
Syntax	I-Protocol
,	O
used	O
in	O
S/MIME	B-Protocol
(	O
RFC	O
2311	O
and	O
RFC	O
2633	O
)	O
.	O
</s>
<s>
IETF	O
message	O
specification	O
(	O
based	O
on	O
the	O
popular	O
Internet	O
MIME	B-Protocol
standard	O
)	O
that	O
provides	O
a	O
consistent	O
way	O
to	O
send	O
and	O
receive	O
signed	O
and	O
encrypted	O
MIME	B-Protocol
data	O
.	O
</s>
<s>
OCSP	B-Protocol
(	O
RFC	O
2560	O
)	O
.	O
</s>
<s>
The	O
Online	B-Protocol
Certificate	I-Protocol
Status	I-Protocol
Protocol	I-Protocol
(	O
OCSP	B-Protocol
)	O
governs	O
real-time	O
confirmation	O
of	O
certificate	O
validity	O
.	O
</s>
<s>
RSA	B-Architecture
,	O
DSA	O
,	O
ECDSA	O
,	O
Diffie	B-Protocol
–	I-Protocol
Hellman	I-Protocol
,	O
EC	B-Protocol
Diffie	I-Protocol
–	I-Protocol
Hellman	I-Protocol
,	O
AES	B-Algorithm
,	O
Triple	B-Algorithm
DES	I-Algorithm
,	O
Camellia	B-Algorithm
,	O
IDEA	B-Algorithm
,	O
SEED	O
,	O
DES	B-Algorithm
,	O
RC2	B-Algorithm
,	O
RC4	B-Algorithm
,	O
SHA-1	B-Algorithm
,	O
SHA-256	B-Algorithm
,	I-Algorithm
SHA-384	I-Algorithm
,	I-Algorithm
SHA-512	I-Algorithm
,	O
MD2	B-Algorithm
,	O
MD5	B-Algorithm
,	O
HMAC	B-Algorithm
:	O
Common	O
cryptographic	O
algorithms	O
used	O
in	O
public-key	O
and	O
symmetric-key	O
cryptography	O
.	O
</s>
<s>
NSS	O
supports	O
the	O
PKCS	O
#11	O
interface	O
for	O
access	O
to	O
cryptographic	O
hardware	O
like	O
TLS/SSL	B-Protocol
accelerators	O
,	O
hardware	O
security	O
modules	O
and	O
smart	O
cards	O
.	O
</s>
<s>
NSS	O
version	O
3.13	O
and	O
above	O
support	O
the	O
Advanced	B-Algorithm
Encryption	I-Algorithm
Standard	I-Algorithm
New	I-Algorithm
Instructions	I-Algorithm
(	O
AES-NI	O
)	O
.	O
</s>
<s>
Network	B-Protocol
Security	I-Protocol
Services	I-Protocol
for	O
Java	B-Language
(	O
JSS	O
)	O
consists	O
of	O
a	O
Java	B-Language
interface	O
to	O
NSS	O
.	O
</s>
<s>
JSS	O
also	O
provides	O
a	O
pure	O
Java	B-Language
interface	O
for	O
ASN.1	B-Protocol
types	O
and	O
BER/DER	O
encoding	O
.	O
</s>
