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Re: [stir] Double Quotes (ppt="shaken")

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 14 April 2021 07:15 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Roman Shpount <roman@telurix.com>
CC: Christer Holmberg <christer.holmberg=40ericsson.com@dmarc.ietf.org>, "Peterson, Jon" <jon.peterson@team.neustar>, "Maier, Rudy" <RMaier@tnsi.com>, Marc Petit-Huguenin <marc@petit-huguenin.org>, Russ Housley <housley@vigilsec.com>, IETF STIR Mail List <stir@ietf.org>, "Toy, Arthur" <atoy@tnsi.com>, "Zerr, Brad" <BZerr@tnsi.com>, Robert Sparks <rjsparks@nostrum.com>
Thread-Topic: [stir] Double Quotes (ppt="shaken")
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Subject: Re: [stir] Double Quotes (ppt="shaken")
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Hi,

>>(I pressed SEND too early.)
>>
>>Now, in addition to what I said below, the bullet for "ppt" says:
>>
>>   "o  Fourth, if a PASSporT extension is in use, then the optional JSON
>>      key "ppt" MUST be present and have a value equivalent to the
>>      quoted value of the "ppt" parameter of the Identity header field."
>>
>>And, THIS is what I think is the main source of confusion. 
>>
>> Because, as described earlier, "quoted" seems to be used when the corresponding value is quoted in SIP. Now, that would mean that the "ppt" value *is* also quoted in SIP.
>
> This seems like a very round-about explanation. Considering that this section is talking about how the JWT PASSporT header is generated, it is strange that it
> should be considered normative for the SIP header formation.

I agree with you, but that seems to be the way the text is written: "quoted" is used whenever the corresponding value is quoted in SIP.

Again, in my opinion, from a PASSporT perspective it is irrelevant whether a value is quoted in SIP or not.

Regards,

Christer

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