FlipBIP - BIP32/39/44 Tool

Crypto toolkit for Flipper Zero

Background

The goal of this project is to see how much crypto functionality can be brought to the Flipper Zero.

If you do not have one, download a Flipper Zero firmware to get the fbt build tool
Plug your Flipper Zero in via USB
Copy the contents of this folder into the applications_user folder of your firmware
Modify the site_scons/cc.scons file in the Flipper Zero firmware to add the "-Os" flag

Then run the command:

./fbt COMPACT=1 DEBUG=0 launch_app APPSRC=applications_user/FlipBIP

The application will be compiled and copied onto your device

Trezor crypto C code ported into crypto subfolder
- Adapted to use Flipper hardware RNG (see crypto/rand.c)
- Imports and some C library functions modified for compatibility with FBT
Navigation and UI adapted from FAP Boilerplate app
BIP39 mnemonic generation
- 24, 18, or 12 words
BIP39 mnemonic to BIP39 seed generation
Hierarchical Deterministic (HD) wallet generation from seed
- Generation of offline m/44'/0'/0'/0 BTC wallet
- Generation of offline m/44'/60'/0'/0 ETH wallet (coded from the $SPORK Castle of ETHDenver 2023!)
- Similar features to: https://iancoleman.io/bip39/

Support for BIP39 passphrase
- Currently blank
Support for more custom BIP32 wallet paths
- Currently hardcoded to m/44'/0'/0'/0