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Use of attribute certificates in SignedData



I have a question for the group concerning attribute certificates.

 

Is there an accepted location to put an attribute certificate associated with the signer in the SignedData data structure?  I have a SignedData object and I’m considering putting an attribute certificate associated with the signer in the ‘certificates’ field of SignedData in addition to the PKC of the signer. 

 

Is that a “philosophically correct” location?  I have some concern about standard decoders being able to successfully decode the SignedData structure if includes an attribute certificate.  Other options include burying the certificate in the encapsulated content or including it as a Signed or UnSigned attribute.

 

I’d appreciate any advice and or lessons learned that you can offer.  Thanks in advance. 

 

Chris Francis