Your passkey can be an encryption address. The domain is the key.

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There is still no simple way to encrypt something to a person. You can encrypt to a server, or to someone you have already swapped keys with, but not to "Maya, whoever and wherever she is." I built Letterlock to try: the passkey you already have becomes an encryption address. Your device derives an X25519 key from the passkey, publishes only the public half to a directory contract on Monad, and from then on any app or agent can look your key up with one read and seal data only your passkey opens. It is live on Monad mainnet (2:32 demo with a real passkey, try it in two minutes, no wallet). Thi

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