Worked on the fortanix/rust-sgx repository to deliver cross-platform TDX and SGX attestation capabilities, focusing on secure collateral workflows for business applications. Developed static types in Rust to distinguish TcbInfo and QeIdentity structures between SGX and TDX, improving type safety and clarity across the PCS and related components. Enhanced the API to support TDX collateral retrieval from Intel PCCS services, while restricting PckCert handling to SGX-type TCB components for tighter security. Extended system programming logic to support non-SGX QE variants and updated file naming conventions for TDX data, ensuring robust platform differentiation and maintainable security architecture.