ecies
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can this run non-ephimerally?
while ephemeral crypto is nice for PFS in communication, sometimes you want to encrypt for storage, and you dont want a pure symmetric encryption, as obviously whatever doing the backup would need the symmetric key.
and you dont really have a seperate transmitter and reciever, so the question is basically whether one cannot just use the public key to encrypt a random secret for symmetric encryption similar to RSA?