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RFC 6347, "Datagram Transport Layer Security Version 1.2", January 2012

Source of RFC: tls (sec)

Errata ID: 4642
Status: Reported
Type: Editorial
Publication Format(s) : TEXT

Reported By: Dale R. Worley
Date Reported: 2016-03-18

Section 4.1 says:

   version
      The version of the protocol being employed.  This document
      describes DTLS version 1.2, which uses the version { 254, 253 }.
      The version value of 254.253 is the 1's complement of DTLS version
      1.2.  This maximal spacing between TLS and DTLS version numbers
      ensures that records from the two protocols can be easily
      distinguished.  It should be noted that future on-the-wire version
      numbers of DTLS are decreasing in value (while the true version
      number is increasing in value.)

It should say:

Replace "1's complement of DTLS version" with "1's complement
of TLS version":

   version
      The version of the protocol being employed.  This document
      describes DTLS version 1.2, which uses the version { 254, 253 }.
      The version value of 254.253 is the 1's complement of TLS version
      1.2.  This maximal spacing between TLS and DTLS version numbers
      ensures that records from the two protocols can be easily
      distinguished.  It should be noted that future on-the-wire version
      numbers of DTLS are decreasing in value (while the true version
      number is increasing in value.)

Notes:

Clearly this won't confuse the reader, but it is incorrect as written and should be corrected at some time.

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