In the last days, I implemented a few long-planned features in the
firmware, with the overall goal of making Anelok suitable for
daily real-life use.
These features include:
- Anelok can now use multiple account databases, selected by the PIN
the user enters. This way, I can have the demo accounts with the
default PIN (the "V"), plus my real accounts with a different PIN.
The overall account database structure is still something that's
only sufficient for the present state of development. E.g.,
- the account database is stored in the Flash of the
microcontroller, not on the memory card,
- Anelok can only read the database, but it cannot modify it or
add new accounts.
- there is no support for multiple readers yet
https://gitlab.com/anelok/doc/wikis/Task_multicrypt
- the PIN is currently stored with the keys, and keys are selected
by comparing the PIN with what the user entered. We could do
much better:
https://gitlab.com/anelok/doc/wikis/Task_nopin
- The account database now supports directories. To put an account
in a directory, one simply prefixes its name with the path. Anelok
then figures out what to with it. This is the current demo
database:
https://gitlab.com/anelok/anelok/blob/master/crypter/default.txt
And this is what the "Code" subdirectory looks like (the "folder"
icon is new):
http://downloads.qi-hardware.com/people/werner/anelok/tmp/fw-subdir-before.png
http://downloads.qi-hardware.com/people/werner/anelok/tmp/fw-subdir-after.png
The implementation of all this is rather crude (e.g., weird things
will happen if entries in the account database don't follow a
strict depth-first order) and fairly inefficient, but it'll do for
now.
- Long account records now scroll horizontally. This is what it
looks like:
http://downloads.qi-hardware.com/people/werner/anelok/tmp/fw-scroll.png
using the example from
http://xkcd.com/936/
As usual, all this can also be experienced with the simulator.
- Werner
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