GPG - Import Key

1. Import private key

gpg --import private.pgp

2. Import public key

gpg --import public.pgp

3. Trust the key with id (email)

gpg --edit-key <id>

trust and Press Enter

gpg> trust

1 = I don't know or won't say
2 = I do NOT trust
3 = I trust marginally
4 = I trust fully
5 = I trust ultimately
m = back to the main menu

5 to trust the key ultimately

Your dicision? 5

y to confirm trust the key

Do you really want to set this key to ultimate trust? (y/N) y

save save the setting

gpg> save