<s>
In	O
cryptography	O
,	O
the	O
shrinking	B-Algorithm
generator	I-Algorithm
is	O
a	O
form	O
of	O
pseudorandom	B-Algorithm
number	I-Algorithm
generator	I-Algorithm
intended	O
to	O
be	O
used	O
in	O
a	O
stream	B-Algorithm
cipher	I-Algorithm
.	O
</s>
<s>
The	O
shrinking	B-Algorithm
generator	I-Algorithm
uses	O
two	O
linear-feedback	B-Architecture
shift	I-Architecture
registers	I-Architecture
.	O
</s>
<s>
A	O
variant	O
is	O
the	O
self-shrinking	B-Algorithm
generator	I-Algorithm
.	O
</s>
