A very simple "Hello world" class that doesn't use any PIN protection or secure communication. It can only store up to 255 bytes of data and give it back on request. Perfect for testing communication with the card.
By default the phrase is I am a teapot gimme some tea plz.
Base class that takes care of the secure communication with the host and PIN management. It's not very useful by itself, but all other applets in the collection use it as a base.
Extends SecureApplet, stores arbitrary data that can be read after the card is unlocked with the PIN code.
Can store a master private key imported from seed or xprv, or generated on the card itself. Uses BIP-32 to derive child keys, can return corresponding xpubs and sign arbitrary messages.