LedgerHQ/app-u2f

FIDO U2F Application for Ledger Blue and Nano S

Ledger App FIDO U2F

Ledger App FIDO U2F for Ledger devices.

This application implements an U2F Authenticator for Ledger devices.

A great introduction to WebAuthn can be found here. Note that U2F is only a subpart of WebAuthn. You can also use this demo to test this app, or use its debugger to do some advance testing.

Specifications

• FIDO U2F (CTAP 1) specification can be found here.

Building

On a development environment:

• Set BOLOS_SDK to a place where the Nano S SDK has been cloned (https://github.com/LedgerHQ/nanos-secure-sdk)
• Install arm-none-eabi-gcc and clang
• Run make

Acronyms

Acronyms not specific to the project:

• U2F: Universal 2nd Factor (open authentication standard, precedes FIDO2)
• WebAuthn: Web Authentication (component of FIDO2 specifications, described on FIDO Alliance's website)

Testing the app

See dedicated README.md in tests directory.