03/05/84  encode

Syntax:  encode path1A {path2A ... path1N path2N} {-control_args}


Function: enciphers a segment's contents according to a key that is
not stored in the system.


Arguments:
path1N
   is the pathname of a segment to be enciphered.  The star convention
   is allowed.
path2N
   is the pathname of an enciphered segment to be produced.  If the
   last path2 is omitted, it is assumed to be the same as path1.  The
   equal convention is allowed.  The code suffix is always appended to
   path2.


Control arguments:
-key STR
   specifies the encipherment key STR on the command line and does not
   query for one. This control argument is useful in exec_com's for
   multiple invocations of the command with the same key.


Notes: The enciphered segment has the same length as the original
segment.  The encode command requests an encipherment key (from one to
11 characters not including space, semicolon, or tab).  Printing on
the terminal is suppressed while the key is typed.  The command then
requests that the key be typed again, to guard against the possibility
of mistyping the key.  If the two keys do not match, the key is
requested twice again.  All segments specified in an invocation of
encode are enciphered with the same key.


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Historical Background

This edition of the Multics software materials and documentation is provided and donated
to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. 
as a contribution to computer science knowledge.  
This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology,
Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL
and BULL HN Information Systems Inc. to the development of this operating system. 
Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970),
renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership
of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture 
for managing computer hardware properly and for executing programs. Many subsequent operating systems 
incorporated Multics principles.
Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., 
as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. .

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Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without
fee is hereby granted,provided that the below copyright notice and historical background appear in all copies
and that both the copyright notice and historical background and this permission notice appear in supporting
documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining
to distribution of the programs without specific prior written permission.
    Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc.
    Copyright 2006 by BULL HN Information Systems Inc.
    Copyright 2006 by Bull SAS
    All Rights Reserved