re-instate somewhere: "MDC MUST be used when a symmetric encryption key is protected by ECDH"
From the list discussion:
(*) A phrase that got removed but should be recovered is «MDC MUST be used when a symmetric encryption key is protected by ECDH.». I pondered where to move it, but I concluded that should better go at its own changeset stating that new algorithms cannot be used without MDC i.e. they cannot be used with the "Symmetrically Encrypted Data Packet" (still somewhat redundant, as that one MUST NOT be created).
If others agree, we need a tracking item for this too?
Yes, probably. Unless we get a quick consensus on this topic.