RFC 972 (rfc972) - Page 2 of 2

Password Generator Protocol

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RFC 972                                                     January 1986
Password Generator Protocol


      The uniqueness of the generated words is highly dependent on the
      randomness of the initial seed value used.  The availability of a
      single system-wide seed, updated after each access is highly
      desireable.  Seeds based on a time-of-day clock are unacceptable.
      Seed values should be stored as values in excess of 32 bits for
      best performance.

   TCP Based PWDGEN Service

      One PWDGEN service is defined as a connection based application on
      TCP.  A server listens for TCP connections on TCP port 129.  Once
      a connection is established, the six CRLF-delimited words are
      generated and sent to the caller, and the connection is closed by
      the server. No dialog is used or required.

   UDP Based PWDGEN Service

      Another possible PWDGEN service is defined as a datagram based
      application on UDP.  A server listens for UDP datagrams on UDP
      port 129.  When a datagram is received, the six CRLF-delimited
      words are sent back in an answering datagram.




























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