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TDX Profile: Extend MVal for CES #270

@a-trikalinou

Description

@a-trikalinou

The TDX Profile extends MVal for Reference Values and Endorsed Values triples, but not Conditional Endorsement Series triples.

extMap := extensions.NewMap().
Add(comid.ExtReferenceValue, &MValExtensions{}).
Add(comid.ExtEndorsedValue, &MValExtensions{})

Can we add CES as well?

I would like to use tcbstatus , which is an TDX profile Mval extension,

TeeTcbStatus *TeeTcbStatus `cbor:"-88,keyasint,omitempty" json:"tcbstatus,omitempty"`
, in a CES Addition endorsements, https://www.ietf.org/archive/id/draft-ietf-rats-corim-10.html#section-5.1.8-7.2.1.

An example use case would be: If some CES selection criteria are satisfied, i.e. minimum SVN, then the CES will add the additional endorsement tcbstatus: UpToDate/OutOfDate.

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