jspada / signer-reference

Reference signer

This is a standalone reference signer implementation for Coda's schnorr signatures. It includes implementations of the tweedle curves and fields, the Poseidon hash function, and Schnorr signatures.

Here are instructions on how to use it

Installing dependencies

First install opam. You can use the guide here or just run

sh <(curl -sL https://raw.githubusercontent.com/ocaml/opam/master/shell/install.sh)

and run opam init.

Next, install the dependency libraries:

opam install core digestif ppx_jane ppx_deriving_yojson

Building

Build with

dune build ./schnorr.exe

This will build the binary in _build/default/schnorr.exe

Running

Run with

_build/default/schnorr.exe PATH_TO_TRANSACTION_JSON -privkey PRIVKEY_AS_A_DECIMAL_STRING

If the -privkey option is omitted, a random private key will be used. The program simply signs the transaction and immediately verifies it.

See example.json for a sample JSON file.