NLSR

When a router receives an LSA, it sends an interest for the signing key back to the face from which the LSA is received. Since the neighbor that sent the LSA has verified the data, it must have retrieved the key and a copy of the key should be in its content store which can satisfy the router’s interest.
However, content store is opportunistic and cannot guarantee this (content could be replaced).

Currently we also use /localhop prefix for LSA - but it is under multicast strategy so situation is a little better.

We can restore the broadcast key prefix as earlier.

Long term solution is to have insert the keys and LSA into a local repo so other router's can retrieve independent of cache or nlsr.