[Gnuk-users] Gnuk and possible hardware vulnerability

[NIIBE Yutaka]

intrigeri <intrigeri at boum.org> wrote:
> 1. How can I check if my Gnuk Token (FST-01) has this protection
>    mechanism enabled?
>
>    It came without Gnuk pre-installed (IIRC it had NeuG) so my
>    understanding is that the protection is disabled by default.

If it's done by me, protection is also enabled for NeuG standalone
device.

> 2. Did I get it right that I need ST-Link/V2 hardware to enable this
>    protection mechanism?
>
>    The "How to protect flash ROM" section in Gnuk's README tells me to
>    use OpenOCD, an "Open on-chip JTAG debug solution for ARM and MIPS
>    systems".

No, SWD debugger is not needed.

When you use the firmware upgrade tool, it always makes sure to enable
the protection.
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