<s>
Private-key	B-Algorithm
cryptosystems	I-Algorithm
use	O
the	O
same	O
key	O
for	O
encryption	O
and	O
decryption	O
.	O
</s>
<s>
Advanced	B-Algorithm
Encryption	I-Algorithm
Standard	I-Algorithm
,	O
also	O
known	O
as	O
AES	B-Algorithm
and	O
Rijndael	B-Algorithm
.	O
</s>
<s>
Public-key	B-Application
cryptosystems	I-Application
use	O
a	O
public	B-Application
key	I-Application
for	O
encryption	O
and	O
a	O
private	B-Application
key	I-Application
for	O
decryption	O
.	O
</s>
