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[jose] Canonical JSON form

Bret Jordan <jordan.ietf@gmail.com> Wed, 10 October 2018 19:04 UTC

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From: Bret Jordan <jordan.ietf@gmail.com>
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Date: Wed, 10 Oct 2018 13:03:41 -0600
To: jose@ietf.org
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Subject: [jose] Canonical JSON form
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Dear WG,

I was reading through RFC 7515 to see if it would work for a project I am working on.  Basically the need to sign and resign a JSON object.  However, in RFC 7515 there does not seem to be any definition for serializing a canonical form of JSON. This means that two organizations that serialize it differently would produce two different signatures.

Super simple example

{ “type” : “house”, “size” : “1000 sq feet” }



Or 

{
  “type” : “house”, 
  “size” : “1000 sq feet”
}



Or

{“type”:“house”,“size”:“1000 sq feet”}



Or (tabs not spaces)

{
	“type” : “house”, 
	“size” : “1000 sq feet”
}


All four of these JSON structures would produce a different signature as defined by RFC 7515. What am I missing?


Thanks,
Bret
PGP Fingerprint: 63B4 FC53 680A 6B7D 1447  F2C0 74F8 ACAE 7415 0050
"Without cryptography vihv vivc ce xhrnrw, however, the only thing that can not be unscrambled is an egg."

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