1) By get the bytes I assume you mean for the private value? In that case, key.private_numbers().private_value will give you it as an integer, then you can encode it as you like. 2) No, EC private keys do not mathetmatically support encryption. If you want to encrypt with an elliptic curve private key, you need to do implement an ECIES scheme where you perform an ECDH exchange with another key and then encrypt under a key derived from the shared secret.
Alex On Wed, Dec 12, 2018 at 4:55 PM Prashanth Ravindran < prashanthravind...@gmail.com> wrote: > Hi, > > I am trying to implement private set intersection using the cryptography > library, and I would like to take the bytes of a private key and do a > hash(key_material, message). > > 1) How do I get the bytes for an instance of > cryptography.hazmat.backends.openssl.ec._EllipticCurvePrivateKey > 2) Is there any way of encrypting a message using the above private key. > > Thanks, > Prashanth > > _______________________________________________ > Cryptography-dev mailing list > Cryptography-dev@python.org > https://mail.python.org/mailman/listinfo/cryptography-dev > -- All that is necessary for evil to succeed is for good people to do nothing.
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