Alternative tool for spending from a 2 of 3 Mycelium Entropy Shamir's Secret Sharing paper wallet?I have a Mycelium Entropy and am curious about the long term viability of easily spending from a private key protected with 2 of 3 Shamir's Secret Sharing.
I've read the specification here:
https://github.com/cetuscetus/btctool/blob/bip/bip-xxxx.mediawikiand this is pretty much greek to me:
Let (xi, y(xi)) be any M distinct shares for 0 ≤ i < M.
Let ni := x0 ·
· xi−1 · xi+1 ·
· xM−1 (in GF) for 0 ≤ i < M.
That is, ni is the product in GF of all xj for 0 ≤ j < M and j ≠ i.
Let di := (x0−xi) ·
· (xi−1−xi) · (xi+1−xi) ·
· (xM−1−xi) (in GF) for 0 ≤ i < M.
That is, di is the product in GF of all xj−xi for 0 ≤ j < M and j ≠ i.
Let a0 := y(x0)·n0·d0-1 + y(x1)·n1·d1-1 +
+ y(xM−1)·nM−1·dM−1-1 (in GFL).
The secret is a0.
Also, my phone is iOS, and have read about issues with Mycelium wallet app.
My question is, if I put some coins in an SSS address generated by Mycelium Entropy what are my options in the future for spending those coins easily?
In my own googleing I found this tool:
http://passguardian.com/https://github.com/amper5and/secrets.jsHowever it appears incompatable with Mycellium generated SSS:
Error
Reconstruction Error: Number of bits must be an integer between 3 and 20, inclusive.
This is EXACTLY what I'm looking for, just wish it worked...
Anyone have an other alternative or now how to make it compatible?