Support encryption/decryption for Elliptic Curve Cryptography, eg. for ECDH
Currently only Sign and Verify action can be executed with elliptic curve (EC) keys. Add a possibility to use EC keys also for encryption and decryption (together with counterpart public key).
For example, EC keys are used for encryption/decryption in steem blockchain.
Jan Kacina commented
Ellicptic curve cryptography is adopted more widely by blockchains like Bitcoin, Ethereum, EOS...
Sothe idea is not related only to the mentioned steem blockchain...