https://github.com/oasisprotocol/demo-e2eproxy

End-to-End encrypted proxy contract example for Sapphire
https://github.com/oasisprotocol/demo-e2eproxy

e2ee proxy-contract sapphire solidity

Last synced: 1 day ago
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End-to-End encrypted proxy contract example for Sapphire

• Host: GitHub
• URL: https://github.com/oasisprotocol/demo-e2eproxy
• Owner: oasisprotocol
• Created: 2023-11-17T11:32:04.000Z (12 months ago)
• Default Branch: main
• Last Pushed: 2023-12-02T01:00:37.000Z (12 months ago)
• Last Synced: 2024-04-15T05:16:18.451Z (7 months ago)
• Topics: e2ee, proxy-contract, sapphire, solidity
• Language: TypeScript
• Homepage:
• Size: 10.7 KB
• Stars: 0
• Watchers: 15
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# End-to-End encrypted proxy contract example

This repo provides an example of how a contract can relay encrypted transactions on Oasis Sapphire, so the relayer cannot see which contract is being invoked or what the parameters are.

Using the [@oasis-protocol/sapphire-contracts](https://www.npmjs.com/package/@oasisprotocol/sapphire-contracts) library The E2EProxy contract generates a long-term X25519 keypair which allows users to submit a Deoxys-II encrypted payload (with forward secrecy) containing the contract address to invoke and the calldata to pass.

While [@oasis-protocol/sapphire-hardhat](https://www.npmjs.com/package/@oasisprotocol/sapphire-hardhat) package makes testing easy with Hardhat, you also need to run a local [sapphire-dev](https://github.com/oasisprotocol/oasis-web3-gateway/pkgs/container/sapphire-dev) instance which supports the necessary EVM precompiles.

For your convenience there is a `Makefile` which uses Docker to keep everything neatly contained:

```

make sapphire-dev &  # This will take a few minutes

make pnpm-install

make hardhat-compile

make hardhat-test

```