Cipher Name:	PC1
Cipher Type:	Stream Cipher
Keylength:	80, 128 bits
Designer:	Alexander Pukall <alexandermail@hotmail.com>
Published:	1991
URLs:		http://www.multimania.com/pc1/

Notes:
The PC1 cipher uses a 128-bit key. 
It's a stream cipher with a retroaction function. 
Code free for all, even commercial applications.