add ASN.1 wrappers

[thomas-fossati]

• For CMW, see Section 6.1.8 of DICE Attestation Architecture

• For CMW collections:

CMWCollectionExtn
  { iso(1) identified-organization(3) dod(6) internet(1)
    security(5) mechanisms(5) pkix(7) id-mod(0)
    id-mod-cmw-collection-extn(TBD) }

DEFINITIONS IMPLICIT TAGS ::=
BEGIN

IMPORTS
  EXTENSION
  FROM PKIX-CommonTypes-2009  -- RFC 5912
    { iso(1) identified-organization(3) dod(6) internet(1)
      security(5) mechanisms(5) pkix(7) id-mod(0)
      id-mod-pkixCommon-02(57) } ;

-- CMWCollection Extension

ext-CMWCollection EXTENSION ::= {
  SYNTAX CMWCollection
  IDENTIFIED BY id-pe-cmw-collection }

-- CMWCollection Extension OID

id-pe-cmw-collection  OBJECT IDENTIFIER  ::=
   { iso(1) identified-organization(3) dod(6) internet(1)
     security(5) mechanisms(5) pkix(7) id-pe(1) TBD }

-- CMWCollection Extension Syntax

CMWCollection ::= CHOICE {
    json UTF8String,
    cbor OCTET STRING,
}

END

Note that the OIDs for CMW collection are not yet allocated.