Mining is SHA256 guess-and-check lottery which will be safe from a quantum computer. Bitcoin private keys will become vulnerable with knowledge of the public k

Mining is SHA256 guess-and-check lottery which will be safe from a quantum computer. Bitcoin private keys will become vulnerable with knowledge of the public keys. There is a way to mitigate this - because a bitcoin address is a hash of a public key, a bitcoin protocol change can occur whereas the public key becomes a secret and the signature is a zero-knowledge-proof (ZKP) of the prescribed transformation of secret -> address. These signatures are going to be big however, and so the fees will be very high.