I think so, for outgoing transaction (aka to remove from the address), it's kind of needed to verify the signature.
The 2^66 is only for this game where only 66 bits were left unknown. In the general case obtaining the private key from the public key is much longer.
I think so, for outgoing transaction (aka to remove from the address), it's kind of needed to verify the signature.
The 2^66 is only for this game where only 66 bits were left unknown. In the general case obtaining the private key from the public key is much longer.