+1

Two quick comments:

1. As long as we're using an ordered type, it might be nice to require that the 
chain be in order, as in TLS.

2. Since PEM is just base64-encoded DER, we should just specify that each 
element in the array is base64url-encoded DER (assuming that that's the base64 
variant we're using).  



On Sep 20, 2012, at 3:30 PM, Matt Miller (mamille2) wrote:

> That works for me.
> 
> 
> - m&m
> 
> Matt Miller - <[email protected]>
> Cisco Systems, Inc.
> 
> On Sep 20, 2012, at 09:54, Vladimir Dzhuvinov / NimbusDS wrote:
> 
>> Hi guys,
>> 
>> If I understand correctly, the JWS and JWE specs say that the "x5c"
>> parameter is a JSON string:
>> 
>> http://tools.ietf.org/html/draft-ietf-jose-json-web-signature-05#section-4.1.6
>> 
>> The example:
>> 
>> http://tools.ietf.org/html/draft-ietf-jose-json-web-signature-05#appendix-B
>> 
>> 
>> Wouldn't be more sensible to use a JSON array to represent the chain of
>> X.509 certs? Instead of a string of concatenated B64 data with
>> "-----BEGIN CERTIFICATE-----" and "-----END CERTIFICATE-----"
>> delimiters?
>> 
>> 
>> My case for using a JSON array:
>> 
>> 1. A single parse of the header will do the chain as well - saves an
>> extra non-JSON parse operation to split the x5c into chunks.
>> 
>> 2. Saves space.
>> 
>> 3. Makes better use of the existing JSON header structure.
>> 
>> 
>> I suppose the current format was influenced by how X.509 chains are
>> typically exported by programs for file transfer/storage. However, in
>> the case of JWS/JWE, the x5c parameter will be created programmatically
>> and there a JSON array fits better.
>> 
>> What do you guys think?
>> 
>> Cheers,
>> 
>> Vladimir
>> 
>> --
>> Vladimir Dzhuvinov : www.NimbusDS.com : [email protected]
>> _______________________________________________
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>> https://www.ietf.org/mailman/listinfo/jose
> 
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