Assume that my friend would like to encrypt his Bitcoin private key(s) and safely store them in a secret location. This located would only be identified to heirs after death in his will. Should he put the key:
- In a safety deposit box
- Buried in a weatherrpoof container somewhere on my property?
- In the possession of my attorney?
- Somewhere else
Please answer the same question above for my encryption key which I would of course store separately.
As an alternative would a mult-sig solution be helpful? If so how would you design it?