Hello, I would like to know if it is possible to divide 2 public keys between them.
ex: 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798 / 02c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5 with "secp256k1 as ice" or even something else?
I can give you the result for your example, here it is :
Pub =
0200000000000000000000003b78ce563f89a0ed9414f5aa28ad0d96d6795f9c63
Private =
7fffffffffffffffffffffffffffffff5d576e7357a4501ddfe92f46681b20a1
But if we don't know the private key of at least one of the points, we can never directly reach any meaningful result.
If we don't know k for one of the points, how can an algorithm/library know it?
There are ways to indirectly divide 2 points by using a k greater than 1 and smaller than the other. It would be nonsense/off topic if I try to explain it, so I just save everybody the headache and cut the nonsense.😉