Study and implement the generation of remote attestations in Rust and integrate this process into the TEE TLS handshake to improve security and efficiency.
Background
Currently, remote attestation verification occurs outside the TLS handshake data flow, which introduces potential security risks. By moving this process into the TLS handshake and implementing it in Rust, we aim to enhance security and potentially improve performance.
Requirements
Research and Analysis
[ ] Study the current remote attestation process and its limitations
[ ] Analyze the TLS handshake protocol and identify integration points for remote attestation
[ ] Investigate Rust libraries and tools for TEE and remote attestation support
Rust Implementation
[ ] Develop a Rust-based remote attestation generation module
[ ] Ensure compatibility with the existing TEE environment
[ ] Implement necessary cryptographic operations in Rust
TLS Handshake Integration
[ ] Modify the TLS handshake protocol to include remote attestation data
[ ] Implement the generation and verification of remote attestations within the handshake flow
[ ] Ensure backward compatibility with non-attested connections if required
Performance Optimization
[ ] Benchmark the new implementation against the current Nitriding-based approach
[ ] Optimize the Rust code for minimal performance impact on the TLS handshake
Security Analysis
[ ] Conduct a thorough security analysis of the new implementation
[ ] Verify that the integration doesn't introduce new vulnerabilities in the TLS protocol
Technical Considerations
The implementation should be compatible with AWS Nitro TEE
Consider the impact on TLS session
Evaluate the need for changes in libraries used by clients
Testing
[ ] Develop unit tests for the Rust-based attestation generation module
[ ] Create integration tests for the modified TLS handshake
[ ] Perform stress testing to ensure stability under high load
[ ] Test interoperability with different client implementations
Documentation
[ ] Update TLS handshake documentation to reflect the new attestation process
[ ] Provide guidelines for clients on how to verify the integrated attestations
[ ] Document any changes required in the TEE configuration
Risks and Mitigations
Risk: Increased complexity in the TLS handshake
Mitigation: Careful design and extensive testing to ensure robustness
Risk: Performance degradation
Mitigation: Optimize Rust implementation and benchmark thoroughly
Risk: Incompatibility with existing clients
Mitigation: Consider a phased rollout or fallback mechanism
Next Steps
[ ] Form a working group to discuss the design and implementation approach
[ ] Create a detailed technical specification for the new attestation process
[ ] Set up a Rust development environment compatible with the target TEE
[ ] Begin prototyping the Rust-based attestation generation module
Objective
Study and implement the generation of remote attestations in Rust and integrate this process into the TEE TLS handshake to improve security and efficiency.
Background
Currently, remote attestation verification occurs outside the TLS handshake data flow, which introduces potential security risks. By moving this process into the TLS handshake and implementing it in Rust, we aim to enhance security and potentially improve performance.
Requirements
Research and Analysis
Rust Implementation
TLS Handshake Integration
Performance Optimization
Security Analysis
Technical Considerations
Testing
Documentation
Risks and Mitigations
Next Steps