using Ethereum private key to encrypt string

Question

I need to encrypt a string using the private key of my account on a Ethereum private network. How can I do this with web3j? The Ethereum cient I use is Geth.

Answer 1

You may find your answer here: https://ethereum.stackexchange.com/questions/3092/how-to-encrypt-a-message-with-the-public-key-of-an-ethereum-address

With geth on its own I don't think that it is possible, however with bitcore-lib and bitcore-ecies it is.