1 unstable release
0.1.0 | Oct 16, 2024 |
---|
#5 in #quartz
272 downloads per month
Used in 2 crates
84KB
1.5K
SLoC
Quartz CosmWasm (quartz-contract-core)
Quartz CosmWasm (quartz-contract-core) is a high-level framework for building attestation-aware smart contracts on CosmWasm. It provides a robust foundation for developing secure, Intel SGX-based contracts with built-in remote attestation support.
Features
Attested<M, A>
wrapper for a message and its attestation- MockAttestation type for development ease
- Session management for secure communication between contract and enclave
- Verify DCAP attestations (by calling
dcap-verifier
andtcbinfo
contracts) - Mock SGX support for testing environments
See also the spec.md
Installation
Add quartz-contract-core
to your Cargo.toml
:
[dependencies]
quartz-contract-core = { path = "../packages/quartz-contract-core" }
Usage
Here's a basic example of how to use quartz-contract-core
in your CosmWasm contract:
use quartz_cw::prelude::*;
use cosmwasm_std::{DepsMut, Env, MessageInfo, Response};
pub fn execute(
deps: DepsMut,
env: Env,
info: MessageInfo,
msg: QuartzExecuteMsg,
) -> Result<Response, ContractError> {
match msg {
QuartzExecuteMsg::Attested(attested_msg) => {
// Handle attested message
// Verification of the attestation is done automatically
let result = attested_msg.handle(deps, env, info)?;
Ok(result)
},
// Other message handlers...
}
}
Key Components
Attested<M, A>
: A wrapper struct for holding a message and its attestation.Attestation
: A trait for attestation types (DCAP, Mock).HasUserData
: A trait for extracting user data from attestations.RawHandler
: A trait for handling raw messages.
Configuration
You can enable mock SGX support for testing by adding the mock-sgx
feature to your Cargo.toml
:
[dependencies]
quartz-contract-core = { path = "../packages/quartz-contract-core", features = ["mock-sgx"] }
Testing
To run the tests:
cargo test
Dependencies
~17–29MB
~558K SLoC