hn • r/hackernews
Comment on: Modern email can be built from borrowed parts
Tightly coupling identity to cryptosystems should be entirely dismissed for anything that is supposed to have broad adoption.First off, these systems always require indefinitely-lived secrets. To rotate keys (or the whole cryptosystem—think future possible quantum computers) is to change identity. Therefore, to change keys is to break the previous identity. Anything that requires users to think about long-term secrets is user hostile and leads to a fragile system.Second, the economics of pubkey-as-address are untenable. Can you imagine publishing .onion addresses on billboards and business car