here’s the latest news on the addresses I’m currently working on. I’m trying to determine the possible links between them. I don’t know any of the private keys (d1 to d7), nor k1, k2, or k3 — which I assume are large.

The most important goal here is to recover the private key d1, based on 9 signatures.

    d1 was signed using k1, k2, k3, or their opposites (-k1, -k2, -k3)

    d2 and d3 were signed with k1 or -k1

    d4 and d5 were signed with k2 or -k2

    d6 and d7 were signed with k3 or -k3

I'm looking to identify any exploitable link between these keys based on the above observations. Any idea, lead, or suggestion would be greatly appreciated.