zkFold: Cardano integration library

Integration of zkFold Symbolic smart contracts with the Cardano blockchain. The repository contains

• current zk protocols in zkfold-cardano;
• the Plutus scripts in zkfold-cardano-scripts;
• off-chain code for constructing and sending transactions in zkfold-cardano-backends;
• examples of zk circuits in zkfold-example;
• end-to-end tests for smart contracts in e2e-test;
• current smart contract documentation in docs.

Building the project

This project can be built with Cabal 3.10.3.0 and GHC 9.6.6.

Crypotgraphic depencencies needed for building Haskell packages:

• libsodium
• libsecp256k1
• libblst

Additional steps are required for libblt to register it in pkg-config database. After building the library, execute the following in the same directory:

cat > libblst.pc << EOF
prefix=/usr/local
exec_prefix=\${prefix}
libdir=\${exec_prefix}/lib
includedir=\${prefix}/include

Name: libblst
Description: Multilingual BLS12-381 signature library
URL: https://github.com/supranational/blst
Version: ${BLST_VERSION#v}
Cflags: -I\${includedir}
Libs: -L\${libdir} -lblst
EOF
sudo cp libblst.pc /usr/local/lib/pkgconfig/
sudo cp bindings/blst_aux.h bindings/blst.h bindings/blst.hpp  /usr/local/include/
sudo cp libblst.a /usr/local/lib
sudo chmod u=rw,go=r /usr/local/{lib/{libblst.a,pkgconfig/libblst.pc},include/{blst.{h,hpp},blst_aux.h}}

You might also need Libtool if you are getting errors associated with it:

sudo apt-get install libtool

Then run

$ cabal update
$ cabal build