NOTICE

RS-Key (RSK) — an open security-key firmware for the RP2350
Copyright (C) 2026 RS-Key contributors

Licensed under the GNU Affero General Public License, version 3 only
(AGPL-3.0-only). See the LICENSE file.

RS-Key is a from-scratch Rust reimplementation of the pico-keys firmware
family by Pol Henarejos — pico-fido, pico-openpgp and pico-keys-sdk
(https://github.com/polhenarejos) — which is licensed under the GNU
Affero General Public License, version 3 ONLY (AGPL-3.0-only; verified
from the upstream source headers, which read "version 3" with no "or any
later version"). RS-Key inherits and preserves that exact version: it
cannot be relicensed to a later AGPL version or to a permissive license.
The protocol behaviour, file layouts and applet semantics follow that
work; the Rust implementation, the embassy-based runtime and the host
tooling are original to this project.

rsk-wipe is a Rust port of polhenarejos/pico-nuke (GPL-3.0), itself
derived from the Raspberry Pi pico-examples flash_nuke utility
(BSD-3-Clause).

This product is not affiliated with, or endorsed by, Yubico, Nitrokey or
Raspberry Pi. The default USB identity mimics a YubiKey for local tool
interoperability only and must not be used for distribution.