"Failed to match key" · Issue #79 · SciresM/hactool - GitHub
You have several options:
The dumped file will typically be found in the /switch/ folder on your SD card. hactool prodkeys does not exist link
A crucial point often missed is the nature of the message: This distinction is important. In the world of software, a warning indicates a potential issue, while an error halts the operation.
The phrasing "does not exist link" can be misleading. Users often think it means a broken hyperlink or a missing shortcut. In the context of hactool, the word "link" refers to the symbolic link or the connection between the application and the key file. More commonly, it simply means: "Failed to match key" · Issue #79 ·
The prod.keys file contains the master keys required to unlock these files. Without these keys, hactool cannot "see" inside the encrypted package, resulting in the "prodkeys does not exist" error.
To prevent unauthorized access to its software, Nintendo secures Switch files with multi-layered cryptographic keys. Hactool requires these exact keys to decrypt and read game data. The phrasing "does not exist link" can be misleading
You need a hacked Switch (preferably with Atmosphere CFW).