<s>
Falcon	B-Algorithm
is	O
a	O
post-quantum	O
signature	O
scheme	O
selected	O
by	O
the	O
NIST	O
at	O
the	O
fourth	O
round	O
of	O
the	O
post-quantum	O
standardisation	O
process	O
.	O
</s>
<s>
The	O
name	O
Falcon	B-Algorithm
is	O
an	O
acronym	O
for	O
Fast	O
Fourier	O
lattice-based	O
compact	O
signatures	O
over	O
NTRU	O
.	O
</s>
<s>
The	O
design	O
rationale	O
of	O
Falcon	B-Algorithm
takes	O
advantage	O
of	O
multiple	O
tools	O
to	O
ensure	O
compactness	O
and	O
efficiency	O
with	O
provable	O
security	O
.	O
</s>
<s>
From	O
a	O
security	O
point	O
of	O
view	O
,	O
the	O
Gentry	O
,	O
Peikert	O
and	O
Vaikuntanathan	O
framework	O
enjoys	O
a	O
security	O
reduction	O
in	O
the	O
Quantum	O
Random	B-Application
Oracle	I-Application
Model	I-Application
.	O
</s>
<s>
The	O
authors	O
of	O
Falcon	B-Algorithm
provide	O
a	O
reference	O
implementation	O
in	O
C	O
and	O
one	O
in	O
Python	O
.	O
</s>
<s>
The	O
set	O
of	O
parameters	O
suggested	O
by	O
Falcon	B-Algorithm
imply	O
signatures	O
of	O
size	O
666	O
bytes	O
for	O
the	O
NIST	O
security	O
level	O
1	O
(	O
security	O
comparable	O
to	O
breaking	O
AES-128	O
bits	O
)	O
.	O
</s>
