NIP-60: Provide an option to use ncryptsec

[water783]

{
    "kind": 37375,
    "content": nip44_encrypt([
        [ "balance", "100", "sat" ],
        [ "privkey", "hexkey" ], // explained in NIP-61
        [ "ncryptsec", "NIP-49 encrypted private key" ]
    ]),
    "tags": [
        [ "d", "my-wallet" ],
        [ "mint", "https://mint1" ],
        [ "mint", "https://mint2" ],
        [ "mint", "https://mint3" ],
        [ "name", "my shitposting wallet" ],
        [ "unit", "sat" ],
        [ "description", "a wallet for my day-to-day shitposting" ],
        [ "relay", "wss://relay1" ],
        [ "relay", "wss://relay2" ],
    ]
}

Provide an option to use either the privkey or ncryptsec. This approach can help prevent the user's wallet privkey from being exposed in case the main nsec is leaked.

[pablof7z]

good idea and I like the approach, this way a user can have a wallet that can hold funds, apps can see the balance, but they require explicit authorization from the user to spend from them. I.e. a user could have a user with 1k sats that all apps can spend from with no friction and a wallet with 100k sats that requires the user "unlocks" the wallet to spend from it.

[pablof7z]

massaged the text a bit and added a p2pk to specify the pubkey encrypted in the ncryptsec

[water783]

good idea and I like the approach, this way a user can have a wallet that can hold funds, apps can see the balance, but they require explicit authorization from the user to spend from them. I.e. a user could have a user with 1k sats that all apps can spend from with no friction and a wallet with 100k sats that requires the user "unlocks" the wallet to spend from it.

Yes, this is really cool!