Extensions (MIME) Part Two: Media Types", RFC 2046, November
1996.
[3] Freed, N., Klensin, J., and J. Postel, "Multipurpose Internet
Mail Extensions (MIME) Part Four: Registration Procedures", BCP
13, RFC 2048, November 1996.
[4] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", BCP 14, RFC 2119, March 1997.
[5] Moats, R., "URN Syntax", RFC 2141, May 1997.
[6] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", RFC 2234, November 1997.
[7] Alvestrand, H., "IETF Policy on Character Sets and Languages",
BCP 18, RFC 2277, January 1998.
[8] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
Resource Identifiers (URI): Generic Syntax", RFC 2396, August
1998.
[9] Resnick, P., "Internet Message Format", RFC 2822, April 2001.
[10] Alvestrand, H., "Tags for the Identification of Languages", BCP
47, RFC 3066, January 2001.
[11] Klyne, G. and C. Newman, "Date and Time on the Internet:
Timestamps", RFC 3339, July 2002.
[12] Mealling, M., Masinter, L., Hardie, T., and G. Klyne, "An IETF
URN Sub-namespace for Registered Protocol Parameters", BCP 73,
RFC 3553, June 2003.
[13] Yergeau, F., "UTF-8, a transformation format of ISO 10646", STD
63, RFC 3629, November 2003.
11.2. Informative References
[14] Galvin, J., Murphy, S., Crocker, S., and N. Freed, "Security
Multiparts for MIME: Multipart/Signed and Multipart/Encrypted",
RFC 1847, October 1995.
[15] Weider, C., Preston, C., Simonsen, K., Alvestrand, H., Atkinson,
R., Crispin, M., and P. Svanberg, "The Report of the IAB
Character Set Workshop held 29 February - 1 March, 1996", RFC
2130, April 1997.
[16] Freed, N. and K. Moore, "MIME Parameter Value and Encoded Word
Extensions: Character Sets, Languages, and Continuations", RFC
2231, November 1997.
[17] Callas, J., Donnerhacke, L., Finney, H., and R. Thayer, "OpenPGP
Message Format", RFC 2440, November 1998.
[18] Fielding, R., Gettys, J., Mogul, J., Frystyk, H., Masinter, L.,
Leach, P., and T. Berners-Lee, "Hypertext Transfer Protocol --
HTTP/1.1", RFC 2616, June 1999.
[19] Ramsdell, B., Ed., "S/MIME Version 3 Message Specification", RFC
2633, June 1999.
[20] Day, M., Aggarwal, S., Mohr, G., and J. Vincent, "Instant
Messaging / Presence Protocol Requirements", RFC 2779, February
2000.
[21] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A.,
Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP:
Session Initiation Protocol", RFC 3261, June 2002.
[22] Bray, T., Paoli, J., Sperberg-McQueen, C., and E. Maler,
"Extensible Markup Language (XML) 1.0 (2nd ed)", W3C
Recommendation xml, October 2000,
<http://www.w3.org/TR/2000/REC-xml-20001006>.
[23] Bray, T., Hollander, D., and A. Layman, "Namespaces in XML", W3C
Recommendation xml-names, January 1999,
<http://www.w3.org/TR/REC-xml-names>.
[24] International Organization for Standardization, "Data elements
and interchange formats - Information interchange -
Representation of dates and times", ISO Standard 8601, June
1988.
[25] International Organization for Standardization, "Information
Technology - Universal Multiple-octet coded Character Set (UCS)
- Part 1: Architecture and Basic Multilingual Plane", ISO
Standard 10646-1, May 1993.
[26] Peterson, J., "Common Profile for Instant Messaging (CPIM)", RFC
3860, August 2004.
[27] Peterson, J., "Common Profile for Presence (CPP)", RFC 3859,
August 2004.
[28] Bellovin, S., Kaufman, C., and J. Schiller, "Security Mechanisms
for the Internet", RFC 3631, December 2003.
[29] Rescorla, E., "A Survey of Authentication Mechanisms", Work in
Progress, March 2004.
[30] The Unicode Consortium, "The Unicode Standard, Version 4.0",
Addison-Wesley, Boston, MA. ISBN 0-321-18578-1, April 2003,
<http://www.unicode.org/unicode/standard/versions/
enumeratedversions.html#Unicode_4_0_0>.
12. Authors’ Addresses
Graham Klyne
Nine by Nine
EMail: GK-IETF@ninebynine.org
URI: http://www.ninebynine.net/
Derek Atkins
IHTFP Consulting
6 Farragut Ave
Somerville, MA 02144
USA
Phone: +1 617 623 3745
EMail: derek@ihtfp.com, warlord@alum.mit.edu
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