<s>
In	O
cryptography	O
,	O
SOBER	B-Algorithm
is	O
a	O
family	O
of	O
stream	B-Algorithm
ciphers	I-Algorithm
initially	O
designed	O
by	O
Greg	O
Rose	O
of	O
QUALCOMM	O
Australia	O
starting	O
in	O
1997	O
.	O
</s>
<s>
SOBER	B-Algorithm
was	O
the	O
first	O
cipher	O
,	O
with	O
a	O
17-byte	O
linear-feedback	B-Architecture
shift	I-Architecture
register	I-Architecture
(	O
LFSR	B-Architecture
)	O
,	O
a	O
form	O
of	O
decimation	B-Algorithm
called	O
stuttering	O
,	O
and	O
a	O
nonlinear	O
output	O
filter	O
function	O
.	O
</s>
<s>
SOBER-2	O
changed	O
the	O
position	O
of	O
the	O
feedback	O
and	O
output	O
taps	O
to	O
resist	O
the	O
above	O
attacks	O
.	O
</s>
<s>
For	O
the	O
NESSIE	O
call	O
for	O
new	O
cryptographic	O
primitives	O
,	O
three	O
new	O
versions	O
called	O
the	O
t-class	O
were	O
developed	O
;	O
SOBER-t8	O
was	O
virtually	O
identical	O
to	O
SOBER-2	O
but	O
did	O
not	O
have	O
sufficient	O
design	O
strength	O
for	O
NESSIE	O
submission	O
;	O
SOBER-t16	O
and	O
SOBER-t32	O
were	O
submitted	O
.	O
</s>
<s>
Subsequent	O
to	O
NESSIE	O
,	O
SOBER-128	B-Algorithm
was	O
designed	O
to	O
take	O
into	O
account	O
what	O
had	O
been	O
learned	O
.	O
</s>
<s>
As	O
a	O
stream	B-Algorithm
cipher	I-Algorithm
,	O
SOBER-128	B-Algorithm
remains	O
unbroken	O
.	O
</s>
<s>
Mundja	O
An	O
integrated	O
message	O
authentication	O
feature	O
based	O
on	O
SHA-256	B-Algorithm
that	O
was	O
designed	O
to	O
be	O
added	O
to	O
stream	B-Algorithm
ciphers	I-Algorithm
such	O
as	O
SOBER-128	B-Algorithm
.	O
</s>
<s>
Turing	B-Algorithm
Named	O
after	O
Alan	O
Turing	B-Algorithm
,	O
shares	O
the	O
LFSR	B-Architecture
design	O
of	O
SOBER-128	B-Algorithm
,	O
but	O
has	O
a	O
block-cipher-like	O
output	O
filter	O
function	O
with	O
key-dependent	O
S-boxes	B-Algorithm
,	O
and	O
remains	O
unbroken	O
subject	O
to	O
a	O
minor	O
usage	O
constraint	O
.	O
</s>
<s>
NLS	O
Short	O
for	O
Non-Linear	O
SOBER	B-Algorithm
,	O
it	O
was	O
submitted	O
to	O
the	O
European	O
eSTREAM	O
project	O
.	O
</s>
<s>
SSS	O
,	O
for	O
Self-Synchronizing	O
SOBER	B-Algorithm
,	O
was	O
also	O
submitted	O
but	O
has	O
very	O
little	O
relationship	O
to	O
the	O
other	O
SOBER	B-Algorithm
ciphers	O
,	O
and	O
was	O
quickly	O
broken	O
.	O
</s>
<s>
Boole	O
Named	O
after	O
George	O
Boole	O
,	O
is	O
a	O
family	O
of	O
combined	O
hash	B-Error_Name
functions	I-Error_Name
and	O
stream	B-Algorithm
ciphers	I-Algorithm
that	O
were	O
developed	O
for	O
submission	O
to	O
the	O
NIST	O
call	O
for	O
development	O
of	O
an	O
advanced	O
hash	B-Error_Name
standard	O
,	O
but	O
were	O
withdrawn	O
when	O
a	O
collision	O
was	O
discovered	O
.	O
</s>
