A little NanoApp integration of PQ primitives on a Nano. The selected algorithme are NIST finalists:

• kyber (as the sole lattice KEM remaining)
• falcon (the lowest bandwidth/storage candidate)

The syntax of APDU (byte string to be send to Nano) are:

FALCON Keygen:

FALCON Sign:

FALCON Verify:

KYBER Keygen:

KYBER Encaps:

KYBER Decaps:

https://developers.ledger.com/docs/nano-app/build/

pip3 install "ledgercomm[hid]"

• compile inside docker the root of app :

sudo docker run --rm -ti -v "/dev/bus/usb:/dev/bus/usb" -v "$(realpath .):/app" --privileged ledger-app-builder:latest

BOLOS_SDK=$NANOSP_SDK make clean

BOLOS_SDK=$NANOSP_SDK make

exit

cp bin/app.hex pkg/nanosp/app_nanosp.hex

ledgerctl install -f nanosp.json

• falcon low footprint: https://falcon-sign.info/Falcon-impl-20211101.zip
• pqm4 :https://github.com/mupq/pqm4