Gadd repairs it and gives it back from Luigi to then explore the top of the tree and get the Dark Moon piece. Key to the Eerie Stairway, the Wooden Key: After retrieving the key from the Sneakers and then Polterpup, E.( Appears in: A-Boss: Confront the Source) Gadd Figures out both where the spiders are coming from and a massive paranormal signal is (In the cellar, after beating A-5), he gives this to you to access the elevator and confront the source. Key to the Cellar, the Elevator Key: When E.Special Keys in Luigi's Mansion: Dark Moon It's also the only Special Key that's not dropped by a boss Portrait Ghost nor leads to a different area. Key to the Secret Altar (a.k.a Area 5), the Spade Key (obtained by Vincent Van Gore): The door that leads him to King Boo's hideout is located on the basement where Luigi goes through the hallway and reaches the last door.Key to Area 4, the Diamond Key (obtained by Boolossus): The door that leads the green-capped plumber to Area 4 is the second door found on the Balcony on the third floor.Key to Area 3, the Club Key (obtained by Bogmire): The door that leads him to Area 3 is the one near the Bathroom on the first floor and the Conservatory.Also, the door has a pink heart shape on it. Key to Area 2, the Heart Key (obtained by Chauncey): The door that leads Luigi to Area 2 is the main one of the lower part of the Foyer.2 Special Keys in Luigi's Mansion: Dark Moon.
Though they would be beneficial for game mod makers (again you dont have to use any hacking trickery to get the switch to decrypt the game dumps. Beyond that these keys are mostly useless. Its also handy for emulators as when they reach a point of functional enough to play retail games the dumps being used wont need to be decrypted before playing as they can be decrypted by the emulator on the fly.
These would be the keys to be hyped about but alas finding the master signature keystring is not easy (this would be like the key released for PS3 that geohot got sued over which was only ever calculated do to a serious mistake in sonys implimentation of there crypto system for the ps3.) As for these master keys they can decrypt encrypted file contents and allow us to take a deeper look at whats inside. Content is signed by a keyset that is well guarded. No these keys do not allow us to resign any content. In short it means we can decrypt games without the switch its self. The "switch keys" are but a set of keys used for decrypting retail games. If you want to know what a key looks like - here is one. To analyze a few more important processes.
We'd also very much like to always have the keys to the most recent kernel - which might take some time after every major "key change" Nintendo does with every firmware update. But luckily, we can build a second door into the security level below, to say that a Switch should allow packages from Nintendo and - Bob. Modify games - and still make them say, they are from Nintendo, sign our own Firmware packages, and let them still say, that they are from Nintendo.
With it we could say "this software is from Nintendo". First off is Nintendos private key to sign packages. There are a few important keys we'd still like to have though, but which we probably wont get. So its an endless supply of hopeful hype stories, never to run out. Lets say - with every major firmware update. The thing with encryption keys in always online/semi force updatable devices is - that many of them can and will get changed very frequently.
Its bloggers getting excited over any news regarding to new keys found, not understanding what they are needed for, but broadcasting excitement (hype!), which leads to about 50 excited people, that post everywhere, that they are sooo excited - because they presume, they now get stuff for free. Now - what "key released/found" means on the news circuit, is entirely different. to get a notion, that there are "different keys", some of which are "very hidden and secretive" by necessity, some less so. If you want to get a little less hollywood, read about John, Mary and their good friend Lisa - (and public key crypto): There are many interactions, on many levels - but basically you could think of it like the thing you saw in cold war movies of the 80s/90s where the president, and the general needed to turn two keys at the same time, to launch a bomb. Keys are used to validate "that you are who you say you are" in a process of interaction.