ec_dh | R Documentation |
Key agreement is one-step method of creating a shared secret between two peers. Both peers can independently derive the joined secret by combining his or her private key with the public key from the peer.
ec_dh(key = my_key(), peerkey, password = askpass)
key |
your own private key |
peerkey |
the public key from your peer |
password |
passed to read_key for reading protected private keys |
Currently only Elliptic Curve Diffie Hellman (ECDH) is implemented.
https://wiki.openssl.org/index.php/EVP_Key_Agreement, https://wiki.openssl.org/index.php/Elliptic_Curve_Diffie_Hellman
## Not run:
# Need two EC keypairs from the same curve
alice_key <- ec_keygen("P-521")
bob_key <- ec_keygen("P-521")
# Derive public keys
alice_pub <- as.list(alice_key)$pubkey
bob_pub <- as.list(bob_key)$pubkey
# Both peers can derive the (same) shared secret via each other's pubkey
ec_dh(alice_key, bob_pub)
ec_dh(bob_key, alice_pub)
## End(Not run)
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