Closed Agreement

A private agreement between two parties.

This contract implements a private agreement between two parties. The agreement is kept in secret however it may be revealed by either party at any time if they share it publicly.

Demonstrates:

• off-chain signing
• rpc interactions
• privacy and brokered agreements

Getting Started

1. visit .env, env.example has been provided
2. fill all relevant variables

Build and Test

This project works best with Docker

1. Load the project in VSCode Remote Containers Extension or in a CodeSpace

Or

1. full build and test via docker command line

$ sh build.sh

Deployment (Optional)

Deployment scripts are provided. Deployment requires access to a private key and TestNet RPC instance as well as an ETHERSCAN_API_KEY.

1. $ yarn deploylibrary Get the address of the constant library and set it in CONSTANT_LIB_ADDRESS This has already be configured to 0x1396262031838905d3787F0A517Fa3CaCF33FA04 in package.json
2. $ yarn deploy This will deploy the ClosedAgreement contract

Note: If you are depending on environment variables in .env you may have to export these for yarn as well $ export RPC_URL=https://provider...

Sepolia TestNet

This contract is already deployed with the following details:

Contract	Ethereum Address	Etherscan
ECDSA	0x18F3510E1a11C502781e5E8E1FD2365fAa789Bb2	https://sepolia.etherscan.io/address/0x18f3510e1a11c502781e5e8e1fd2365faa789bb2
ClosedAgreement	0x3cb46d7079d74fb0a66e4f949a3d2b3e9be62006	https://sepolia.etherscan.io/address/0x3cb46d7079d74fb0a66e4f949a3d2b3e9be62006

Testing

1. setup the .env to have suitable values for message and parties
2. create an agreement $ yarn create_agreement make a note of the agreement hash
3. optionall reveal the agrement $ yarn reveal hash

Below is an example of a successful transaction

Agreement for 0x6CCEF4A336990D1C3C52B7A0624D811B7EDDECB4825E3EC9CE7AE57F4FA2D9C7

1. create_agreement https://sepolia.etherscan.io/tx/0x79c531d8ce265333508e72e0db929dea4198dad196f397bfaaac8ebbb51fdddd
2. reveal https://sepolia.etherscan.io/tx/0x81a134111e684c63180a539d506f190fb6f1d895a2662adb25369cbc0c0c0794