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License: BSD 2-Clause "Simplified" License
Elliptic Curve Integrated Encryption Scheme (ECIES)
License: BSD 2-Clause "Simplified" License
Which version of openssl did you use? Does this solution works in latest version? I am failing to compile with 1.1.1g version.
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?
ECIES requires a KDF to ensure random distribution of the entropy in the shared secret, or you void the AES security contract. See https://crypto.stackexchange.com/a/60898/349.
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