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Annotation of 43BSDReno/domestic/man/xsend.0, revision 1.1

1.1     ! root        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
        !            10: 
        !            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.
        !            21: 
        !            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.
        !            25: 
        !            26:      To receive secret mail, use _x_g_e_t. It asks for your pass-
        !            27:      word, then gives you the messages.
        !            28: 
        !            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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