Calculating Nonce with ECDSA Signatures

So I’ve got these two signatures and trying to figure out the nonce. Here’s what I got: d1=(k1*s1-z1)/r1 k1=(d1*r1+z1)/s1 r1=(k1*s1-z1)/d1 s1=(d1*r1+z1)/k1 z1=k1*s1-d1*r1 If we have another signature, how do I find k?

Actually, I think if we have an inverse, we can write it like this: d2=k1^(n-2)-1 k2=k1^(n-2) r2=(k2*s2-z2)/d2 s2=(d2*r2+z2)/k2 z2=k2*s2-d2*r2 Still not sure how to calculate k from 1/k though.

Anyone got the RSZ value? I’m kinda lost here… r=0x s=0x z=0x Need to fill this in to move forward.

I’m not following. Are you saying that k1 and k2 are inverses of each other, or is it just the nonces that are inverse? Clarify please.

Here’s an example I’m working with: d1=(k1*s1-z1)/r1 d1=000000000000000000000000000000000000000000000000000000000000000e k1=000000000000000000000000000000000000000000000000000000000000000f r1=02d7924d4f7d43ea965a465ae3095ff41131e5946f3c85f79e44adbcf8e27e080e s1=02d7924d4f7d43ea965a465ae3095ff41131e5946f3c85f79e44adbcf8e27e080e z1=k1*s1-d1*r1 If I have another signature, it seems d2=k1^(n-2)-1. What do you think?