jMRTD with ECDSA to passport about polling-station-app HOT 7 CLOSED

https://github.com/Glamdring/epassport-reader.git

from polling-station-app.

After some fiddeling the clone from epassport-reader works.

What the connection with the passport needs to do:

• read public key
• signing transactions

from polling-station-app.

Copied most of the epassport-reader app to an activity in digital-voting-pass-app. The activity can now be loaded when phone detects an NFC chip and can read and display data from it.

from polling-station-app.

Can read 1806 bits from DG15, but haven't succeeded in isolating the public key from that.
My passport has a 256 bit brainpoolP256r1 curve, so public key must be 32 byte?
http://www.passport.go.kr/img/download/vol2.pdf might be interesting to read futher

from polling-station-app.

App reads the correct data from DG15,
for passports <2014 this is 226 bytes
for passports >2014 this is 377 bytes

from polling-station-app.

App can now sign 8 bytes of data with the passport.
The passport returns 192 bytes of signed data. (not sure if this is the intended behavior, will look into it later) SignedData is different each time the same string is signed, which is a sign (pun not intended) the passport does actually sign the data, since the signing algorithm is non-deterministic.

from polling-station-app.

Writing tests for the connection with the passport will be a lot of work, since the inputstreams and data from the datagroups in the passport need to be mocked. Not sure if this is worth it.

from polling-station-app.