Filecoin Signing Tools

You can find more information in the Documentation Site

• Rust Native Library

  • Secp256k1
  • Multisig (Work in progress)
  • BLS
  • Hardware Wallet support (Ledger Nano S/X)
  • Filecoin transactions (CBOR <> JSON serialization)

• WASM Library

  • Secp256k1
  • Multisig (Work in progress)
  • BLS
  • Hardware Wallet support (Ledger Nano S/X)
  • Filecoin transactions (CBOR <> JSON serialization)

• JSON RPC Server

  • Focus: Exchange integration
  • Exposes most of the functions available in the signing library
  • Lotus integration:
    • nonce caching
    • determine testnet vs mainnet
    • retrieve nonce
    • submit signed transaction
    • retrieve tx status

• Examples

  Caller	Callee	Status
  Node.js	JSONRPC Service	Ready ✔️	Link
  Browser	WASM	Ready ✔️	Link
  Browser	WASM + Ledger	Ready ✔️	Link
  Node.js / Mocha	WASM	Ready ✔️	Link
  Rust	Rust + Ledger	Ready ✔️	Link
  C	Rust	Ready ✔️	Link
  C++	Rust	Ready ✔️	Link
  Java	Rust	Ready ✔️	Link
  Kotlin	Rust	Ready ✔️	Link
  Go	Rust	Ready ✔️	Link
  Objective-C	Rust	Ready ✔️	Link
  Swift	Rust	Ready ✔️	Link
  Flutter	Rust	Ready ✔️	Link
  React Native	Rust	Planned ⏳	Soon

Running tests and examples

TIP: A good place to look for reproducible steps is the circleci configuration of this project

Installing dependencies

make deps

Rust

cargo test -p filecoin-signer

Service

To run these tests, you need to set two environment variables first so tests can reach a Lotus node:

LOTUS_SECRET_URL	some_url
LOTUS_SECRET_JWT	some_jwt

Then you can run:

cargo test -p filecoin-signer

WASM

Build WASM and link it locally so examples are linked to the local version:

make link_wasm

After this, you can run the following tests / examples:

Command	Description
make test_wasm_unit	Unit tests
make test_wasm_node	Node integration tests
make test_wasm_browser	Browser integration tests
make test_wasm_ledger	Ledger integration tests