Gilang developed cross-platform TDX and SGX attestation capabilities for the fortanix/rust-sgx repository, focusing on secure collateral workflows and business value. He introduced static Rust types to distinguish TcbInfo and QeIdentity for SGX and TDX, improving type safety and platform differentiation across the PCS and related components. Gilang enhanced the dcap-artifact-retrieval process to support TDX collateral provisioning from Intel PCCS services, and restricted PckCert handling to SGX-type TCB components for tighter security. His work extended QE Identity support to non-SGX variants and refined TDX-specific data workflows, demonstrating depth in API development, security architecture, and system programming.