True iff holder's own extension list carries any account-identity-proof material at all:
the legacy 0xf2f1 extension, a 0x8009 dictionary entry, or a dictionary that fails to
decode (fail closed — an undecodable dictionary might be hiding proof material). Does not
itself validate the material; use validateLeafAccountIdentityProof or
validateKeyPackageAccountIdentityProof for that.
Accepts a LeafNode or a KeyPackage. It only inspects holder.extensions, so for a
KeyPackage it reports KeyPackage-level (misplaced or legacy) material, not material on the
embedded leaf — check keyPackage.leafNode separately.
True iff
holder's own extension list carries any account-identity-proof material at all: the legacy0xf2f1extension, a0x8009dictionary entry, or a dictionary that fails to decode (fail closed — an undecodable dictionary might be hiding proof material). Does not itself validate the material; use validateLeafAccountIdentityProof or validateKeyPackageAccountIdentityProof for that.Accepts a LeafNode or a KeyPackage. It only inspects
holder.extensions, so for a KeyPackage it reports KeyPackage-level (misplaced or legacy) material, not material on the embedded leaf — checkkeyPackage.leafNodeseparately.