The PC1 Encryption Algorithm  Alexander Pukall 1991   Code free for all   PC1COD.c : the encryption algorithm  PC1DEC.c : the decryption algorithm   The PC1 cipher uses a 80 bit.  It's a stream cipher with a retroaction function.   Tested with Turbo C 2.0 for DOS  and Microsoft Visual C++ 5.0 for Win 32   This code is used in the PEDIT software ( author : Paul Brand )  and CRYPTOGRAPHE 98 ( author : Peter Torris )     	

