On Fri, Mar 18, 2016 at 8:41 PM, RFC Errata System
<[email protected]> wrote:
> The following errata report has been submitted for RFC6347,
> "Datagram Transport Layer Security Version 1.2".
>
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=6347&eid=4642
>
> --------------------------------------
> Type: Editorial
> Reported by: Dale R. Worley <[email protected]>
>
> Section: 4.1
>
> Original Text
> -------------
> 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.)
>
>
> Corrected Text
> --------------
> 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.)
As far as I can see, the original text is correct, which is easy to
see if you look at the corresponding paragraph of RFC 4347 (DTLS 1.0):
version
The version of the protocol being employed. This document describes DTLS
Version 1.0, which uses the version { 254, 255 }. The version
value of 254.255
is the 1's complement of DTLS Version 1.0.
If the suggested text had been correct, then the encoding in RFC 4347
would have been { 254, 254 } as DTLS 1.0 is based on TLS 1.1.
--
Henrik Grubbström [email protected]
Roxen Internet Software AB [email protected]
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