<s>
NaCl	B-Application
(	O
pronounced	O
"	O
salt	O
"	O
)	O
is	O
an	O
abbreviation	O
for	O
"	O
Networking	O
and	O
Cryptography	O
library	O
"	O
,	O
a	O
public	O
domain	O
"	O
high	O
...	O
software	O
library	O
for	O
network	O
communication	O
,	O
encryption	O
,	O
decryption	O
,	O
signatures	O
,	O
etc	O
"	O
.	O
</s>
<s>
NaCl	B-Application
was	O
created	O
by	O
the	O
mathematician	O
and	O
programmer	O
Daniel	O
J	O
.	O
Bernstein	O
who	O
is	O
best	O
known	O
for	O
the	O
creation	O
of	O
qmail	B-Application
and	O
Curve25519	O
.	O
</s>
<s>
The	O
main	O
goal	O
while	O
creating	O
NaCl	B-Application
,	O
according	O
to	O
the	O
paper	O
,	O
was	O
to	O
"	O
avoid	O
various	O
types	O
of	O
cryptographic	O
disasters	O
suffered	O
by	O
previous	O
cryptographic	O
libraries	O
"	O
.	O
</s>
<s>
Key	O
agreement	O
using	O
X25519	B-Application
.	O
</s>
<s>
Authenticated	B-Algorithm
encryption	I-Algorithm
using	O
Salsa20-Poly1305	O
.	O
</s>
<s>
Encryption	O
using	O
Salsa20	B-Algorithm
or	O
AES	B-Algorithm
.	O
</s>
<s>
Authentication	O
using	O
HMAC-SHA-512-256	B-Algorithm
.	O
</s>
<s>
One-time	O
authentication	O
using	O
Poly1305	B-Algorithm
.	O
</s>
<s>
Reference	O
implementation	O
is	O
written	O
in	O
C	B-Language
,	O
often	O
with	O
several	O
inline	B-Language
assembler	I-Language
.	O
</s>
<s>
C++	B-Language
and	O
Python	B-Language
are	O
handled	O
as	O
wrappers	O
.	O
</s>
<s>
NaCl	B-Application
has	O
a	O
variety	O
of	O
programming	O
language	O
bindings	O
such	O
as	O
PHP	O
,	O
and	O
forms	O
the	O
basis	O
for	O
Libsodium	O
,	O
a	O
cross-platform	O
cryptography	O
library	O
created	O
in	O
2013	O
which	O
is	O
API	O
compatible	O
with	O
NaCl	B-Application
.	O
</s>
<s>
—	O
a	O
portable	O
,	O
cross-compilable	O
,	O
installable	O
,	O
packageable	O
,	O
API-compatible	O
version	O
of	O
NaCl	B-Application
.	O
</s>
<s>
—	O
a	O
pure-Rust	O
implementation	O
of	O
libsodium/NaCl	O
,	O
with	O
support	O
for	O
protected	O
memory	O
.	O
</s>
<s>
NaCl	B-Application
Pharo	O
—	O
a	O
Pharo	O
Smalltalk	O
Extension	O
.	O
</s>
<s>
TweetNaCl	O
—	O
a	O
tiny	O
C	B-Language
library	O
,	O
which	O
fits	O
in	O
just	O
100	O
tweets	B-Application
(	O
140	O
symbols	O
each	O
)	O
,	O
but	O
supports	O
all	O
NaCl	B-Application
functions	O
.	O
</s>
<s>
NaCl	B-Application
for	O
Tcl	O
—	O
a	O
port	O
to	O
the	O
Tcl	O
language	O
.	O
</s>
<s>
NaCl	B-Application
for	O
JavaScript	O
—	O
a	O
port	O
of	O
TweetNaCl/NaCl	O
cryptographic	O
library	O
to	O
the	O
JavaScript	O
language	O
.	O
</s>
<s>
TweetNaCl	O
for	O
Java	O
—	O
a	O
port	O
of	O
TweetNaCl/NaCl	O
cryptographic	O
library	O
to	O
the	O
Java	O
language	O
.	O
</s>
