#NEWLINE# def __init__( self , keyBytes , implementation ) : #NEWLINE# #INDENT# if ( ( len ( keyBytes ) < 16 ) or ( len ( keyBytes ) > 256 ) ) : #NEWLINE# #INDENT# raise ValueError ( ) #NEWLINE# #UNINDENT# self . isBlockCipher = False #NEWLINE# self . name = 'rc4' #NEWLINE# self . implementation = implementation