Security is an area of active work on the Internet. Complete
      solutions to a wide range of security concerns are not yet
      available. Therefore, in the design of IPP, the focus has been on
      identifying a set of security protocols/features that are
      implemented (or currently implementable) and solve real problems
      with distributed printing. The two areas that seem appropriate to
      support are: (1) authorization to use a Printer and (2) secure
      interaction with a printer. The chosen mechanisms are the digest
      authentication mechanism of HTTP 1.1 and SSL3 [SSL] secure
      communication mechanism.

7. REFERENCES

   [ipp-iig]  Hastings, T. and C. Manros, "Internet Printing
              Protocol/1.0:Implementer's Guide", Work in Progress.

   [RFC2569]  Herriot, R., Hastings, T., Jacobs, N. and J. Martin,
              "Mapping between LPD and IPP Protocols", RFC 2569, April
              1999.

   [RFC2566]  deBry, R., Isaacson, S., Hastings, T., Herriot, R. and P.
              Powell, "Internet Printing Protocol/1.0: Model and
              Semantics", RFC 2566, April 1999.

   [RFC2565]  Herriot, R., Butler, S., Moore, P. and R. Tuner, "Internet
              Printing Protocol/1.0: Encoding and Transport", RFC 2565,
              April 1999.

   [RFC2567]  Wright, D., "Design Goals for an Internet Printing
              Protocol", RFC 2567, April 1999.

   [ISO10175] ISO/IEC 10175 "Document Printing Application (DPA)", June
              1996.

   [RFC1759]  Smith, R., Wright, F., Hastings, T., Zilles, S. and J.
              Gyllenskog, "Printer MIB", RFC 1759, March 1995.

   [RFC1905]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
              "Protocol Operations for Version 2 of the Simple Network
              Management Protocol (SNMPv2)", RFC 1905, January 1996.

   [RFC1906]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
              "Transport Mappings for  Version 2 of the Simple Network
              Management Protocol (SNMPv2)", RFC 1906, January 1996.






 
RFC 2568                   Rationale for IPP                  April 1999


   [SSL]      Netscape, The SSL Protocol, Version 3, (Text version
              3.02), November 1996.

8. AUTHOR'S ADDRESS

   Stephen Zilles
   Adobe Systems Incorporated
   345 Park Avenue
   MailStop W14
   San Jose, CA 95110-2704

   Phone: +1 408 536-4766
   Fax:   +1 408 537-4042
   EMail: szilles@adobe.com