[Gnuk-users] Hardware PIN pad

[Ineiev]

On Mon, Jan 30, 2017 at 08:16:21PM +0100, NdK wrote:
> Il 30/01/2017 19:39, Ineiev ha scritto:
> 
> > I've just layed out a draft [0]; the device doesn't fit on the top
> > of FST-01, but I think it could be connected to it with a cable.
> Why a micro? It could easily be hijacked by an attacker to store the PIN
> code.

FST-01 already includes a micro, doesn't it?

> An MCP23017 (16 IOs) or MCP23008 (8 IOs)

A micro-based design would be more straightforward programmatically,
and in theory more flexible (e.g. implementing an encrypted
connection to FST-01).

> paired with an optional .96"
> 128x64 I2C OLED display could probably be better.

128x64 I2C OLED displays are less readily available; I guess they
would be considerably less cheap.

Thank you!
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