1XSEND, XGET, ENROLL(1)      General Commands Manual     XSEND, XGET, ENROLL(1)
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NAME

6       xsend, xget, enroll - secret mail
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SYNOPSIS

9       xsend person
10       xget
11       enroll
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DESCRIPTION

14       These  commands  implement  a  secure communication channel; it is like
15       mail(1), but no one can read the messages except the  intended  recipi‐
16       ent.  The method embodies a public-key cryptosystem using knapsacks.
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18       To  receive  messages,  use enroll; it asks you for a password that you
19       must subsequently quote in order to receive secret mail.
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21       To receive secret mail, use xget.  It  asks  for  your  password,  then
22       gives you the messages.
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24       To  send secret mail, use xsend in the same manner as the ordinary mail
25       command.  (However,  it  will  accept  only  one  target).   A  message
26       announcing the receipt of secret mail is also sent by ordinary mail.
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FILES

29       /usr/spool/secretmail/*.key:  keys  /usr/spool/secretmail/*.[0-9]: mes‐
30       sages
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SEE ALSO

33       mail (1)
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BUGS

36       It should be integrated with ordinary mail.  The announcement of secret
37       mail makes traffic analysis possible.
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41                                                        XSEND, XGET, ENROLL(1)