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Annotation of 43BSDReno/domestic/man/xsend.0, revision 1.1.1.1

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                      4: XSEND(1)           UNIX Programmer's Manual             XSEND(1)
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                      8: NNAAMMEE
                      9:      xsend, xget, enroll - secret mail
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                     11: SSYYNNOOPPSSIISS
                     12:      xxsseenndd person
                     13:      xxggeett
                     14:      eennrroollll
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                     16: DDEESSCCRRIIPPTTIIOONN
                     17:      These commands implement a secure communication channel; it
                     18:      is like _m_a_i_l(1), but no one can read the messages except the
                     19:      intended recipient.  The method embodies a public-key cryp-
                     20:      tosystem using knapsacks.
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                     22:      To receive messages, use _e_n_r_o_l_l; it asks you for a password
                     23:      that you must subsequently quote in order to receive secret
                     24:      mail.
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                     26:      To receive secret mail, use _x_g_e_t. It asks for your pass-
                     27:      word, then gives you the messages.
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                     29:      To send secret mail, use _x_s_e_n_d in the same manner as the
                     30:      ordinary mail command.  (However, it will accept only one
                     31:      target).  A message announcing the receipt of secret mail is
                     32:      also sent by ordinary mail.
                     33: 
                     34: FFIILLEESS
                     35:      /var/spool/secretmail/*.key: keys
                     36:      /var/spool/secretmail/*.[0-9]: messages
                     37: 
                     38: SSEEEE AALLSSOO
                     39:      mail (1)
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                     41: BBUUGGSS
                     42:      It should be integrated with ordinary mail.  The announce-
                     43:      ment of secret mail makes traffic analysis possible.
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                     63: Printed 7/27/90                1Q                              1
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