Euresys 1669-DR Picolo.net HD1, Руководство пользователя

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Encrypted Media Storage
Describes structures and algorithms used to offer the AES-protected storage on USB media
feature of the 1669 Picolo.net HD1.
Purpose
This application note describes the cryptographic chain used by 1669 Picolo.net HD1 to protect
media content stored on external USB drives against content theft or forgery. In this early
release of the product firmware, the protection relies on the knowledge of a passphrase by the
operator of the HD1. Parties ignoring this passphrase will not be able to compute the
appropriate keys used to encrypt the files and can neither decrypt intercepted files, nor produce
alternate content and pretend it authentic, as the recipient will get garbage unless the expected
key was used to create the files.
Note that further releases of product firmware will extend on these algorithms and file
structures to use public/private keys cryptography to avoid having to re-enter the
passphrase every time the device reboots.
Application Notes Picolo.net Handbook