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update flashtestation logic to use new workload ID computation #331

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Merged
merged 1 commit into from
Nov 24, 2025
Merged

update flashtestation logic to use new workload ID computation #331

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28 changes: 2 additions & 26 deletions crates/op-rbuilder/src/flashtestations/attestation.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,6 @@ const DEBUG_QUOTE_SERVICE_URL: &str = "http://ns31695324.ip-141-94-163.eu:10080/
const HEADER_LENGTH: usize = 48;
const TD_REPORT10_LENGTH: usize = 584;

// TDX workload constants
const TD_XFAM_FPU: u64 = 0x0000000000000001;
const TD_XFAM_SSE: u64 = 0x0000000000000002;
const TD_TDATTRS_VE_DISABLED: u64 = 0x0000000010000000;
const TD_TDATTRS_PKS: u64 = 0x0000000040000000;
const TD_TDATTRS_KL: u64 = 0x0000000080000000;

// TD10ReportBody field offsets
// These offsets correspond to the Solidity parseRawReportBody implementation
const OFFSET_TD_ATTRIBUTES: usize = 120;
Expand Down Expand Up @@ -186,23 +179,6 @@ pub fn parse_report_body(raw_quote: &[u8]) -> eyre::Result<ParsedQuote> {
/// This corresponds to QuoteParser.parseV4VerifierOutput in Solidity implementation
/// The workload ID uniquely identifies a TEE workload based on its measurement registers
pub fn compute_workload_id_from_parsed(parsed: &ParsedQuote) -> [u8; 32] {
// Apply transformations as per the Solidity implementation
// expectedXfamBits = TD_XFAM_FPU | TD_XFAM_SSE
let expected_xfam_bits = TD_XFAM_FPU | TD_XFAM_SSE;

// ignoredTdAttributesBitmask = TD_TDATTRS_VE_DISABLED | TD_TDATTRS_PKS | TD_TDATTRS_KL
let ignored_td_attributes_bitmask = TD_TDATTRS_VE_DISABLED | TD_TDATTRS_PKS | TD_TDATTRS_KL;

// Transform xFAM: xFAM ^ expectedXfamBits
let transformed_xfam = parsed.xfam ^ expected_xfam_bits;

// Transform tdAttributes: tdAttributes & ~ignoredTdAttributesBitmask
let transformed_td_attributes = parsed.td_attributes & !ignored_td_attributes_bitmask;

// Convert transformed values to bytes (big-endian, to match Solidity bytes8)
let xfam_bytes = transformed_xfam.to_be_bytes();
let td_attributes_bytes = transformed_td_attributes.to_be_bytes();

// Concatenate all fields
let mut concatenated = Vec::new();
concatenated.extend_from_slice(&parsed.mr_td);
Expand All @@ -211,8 +187,8 @@ pub fn compute_workload_id_from_parsed(parsed: &ParsedQuote) -> [u8; 32] {
concatenated.extend_from_slice(&parsed.rt_mr2);
concatenated.extend_from_slice(&parsed.rt_mr3);
concatenated.extend_from_slice(&parsed.mr_config_id);
concatenated.extend_from_slice(&xfam_bytes);
concatenated.extend_from_slice(&td_attributes_bytes);
concatenated.extend_from_slice(&parsed.xfam.to_be_bytes());
concatenated.extend_from_slice(&parsed.td_attributes.to_be_bytes());

// Compute keccak256 hash
let mut hasher = Keccak256::new();
Expand Down
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