[Vecr]

Code based systems are still in, and classic McEliece could be extended to ~50 MiB for a keypair and still be way more practical than QKD. Just run the max current classic McEliece spec hybrid post quantum with X448.

[sgt101]

NSA is that you?

[karma_pharmer]

please explain?

OP recommended McElice, not DUAL_EC_DRDBG. Is there something I should know about the former?