I use Bitcoin Core to create SegWit paper wallets for friends and family. After creating the wallet via the GUI, the steps I take are as follows:
getnewaddress# Carry this public key back to the paper wallet
dumpprivkey *step-1-key*# Carry this private key back to the paper wallet
qrencode, I also print the two related QR codes.
I tried to verify the correctness of the steps, importing one of the wallets I created into Bitcoin Core, as follows:
(Make Blank Wallet > Yes)
After waiting a while, it opens it correctly, but I see "HD key generation is disabled" (whereas at the time of creation it was enable). Why does this happen? What am I doing wrong?
[sic the text below was posted as an answer, and I believe it was intended as a follow-up addition to the OP question. I am copying it here to better position the question]
Before opening the thread, I had already tried to import a wallet on Bitcoin Core using the Master Private Key previously extrapolated with dumpwallet. In summary I had done:
getnewaddress dumpprivkey *step_1_key* dumpwallet
Then trying to import the newly created wallet again:
Make Blank Wallet > Yes importprivkey *Master_Private_Key_(from_"dumpwallet")*
However, when I tried to issue the last command, I got the following error message: Invalid private key encoding (code -5)
Furthermore, I have now understood that the wallets I want to create for friends and relatives must be protected by a password (therefore BIP38 Encrypt) so that, by changing it, they have the security that I no longer have any access to their wallets. Is it therefore possible to create, through Bitcoin Core (it is the only software I trust), to create a SegWit wallet that has both HD seed and BIP38 technology? If so, what data should I print on the wallet, knowing that I want to provide these people with both the public and private keys (in this case, however, protected by a password)?
If you could help me I would be grateful: I'm going crazy!