# XDC Network (XDC) Quantum Readiness Report

> XDC Network has a QRI score of 19.4/100 and is assessed at Stage 2 (Mitigation / Development) with medium evidence confidence.

Evaluation date: 2026-06-06. Review status: draft. Evaluated scope: XDC Network native asset and base protocol (XDPoS 2.0 consensus, EVM execution layer, as of v2.6.8 Cancun upgrade).

XDC Network has published one of the most comprehensive post-quantum migration roadmaps in the blockchain industry (5 phases, 2026–2035), backed by a working Falcon consensus PoC, NIST FIPS 203/204/205/206 alignment, and the XDSS-PQ open standard co-authored with ITFA/ICC/TradeTrust. The project earns full marks for Security Assessment & Evidence Preparedness (5/5). However, as of June 2026, the network is in Phase 0 (Research/Standards) and every quantum-critical production layer — transaction spend authorization, XDPoS 2.0 consensus block signing and quorum certificates, P2P node identity, wallet/custody paths — remains entirely ECDSA (secp256k1). The recently activated Cancun upgrade (v2.6.8, January 2026) added KZG/blob cryptography, introducing a pairing-based quantum-vulnerable data availability primitive into production. Zero percent of economic value-at-risk is protected by PQ mechanisms. The QRI Score of 19.4 reflects strong risk assessment and mitigation planning that is not yet materially protecting any production users, consistent with Stage 2 (Mitigation / Development). The project is on a credible trajectory toward quantum readiness but has substantial engineering, governance, audit, and deployment work ahead before production protection becomes live.

## Core resources

- [XDC Network QRI report](https://qrindex.org/projects/xdce-crowd-sale/): Human-readable assessment with score, stage, evidence, blockers, risks, and assurance notes.
- [XDC Network structured report data](https://qrindex.org/projects/xdce-crowd-sale/report.json): Complete report as JSON for deterministic machine processing.
- [QRI methodology](https://qrindex.org/methodology/): Scoring model, evidence handling, readiness stages, confidence, assurance, and report status.
- [All QRI project reports](https://qrindex.org/llms.txt): Score-ranked index of every published project assessment.
- [XDC Network official website](https://www.coingecko.com/en/coins/xdce-crowd-sale): Project-maintained website.



## Evidence sources

- [Evidence source 1](<https://xdc.network/quantum-research.html>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 2](<https://xdc.network/quantum-faq.html>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 3](<https://xdc.network/quantum-roadmap.html>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 4](<https://www.xdc.dev/riteshkakkad/xdc-networks-unbreakable-future-exploring-area-of-quantum-proof-blockchain-research-47e9>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 5](<https://github.com/XinFinOrg/XDPoSChain>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 6](<https://xinfin.org/docs/whitepaper-tech.pdf>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 7](<https://xinfin.org/docs/reports/xdposchain-security-audit-report.pdf>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 8](<https://www.xdc.dev/gary/block-structure-in-xdc-20-2lo8>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 9](<https://xdcscan.com/>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 10](<https://github.com/XinFinOrg/XDPoSChain/releases/tag/v2.6.8>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 11](<https://www.xdc.dev/anilchinchawale/xdc-network-v268-the-cancun-upgrade-goes-live-on-mainnet-b7o>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 12](<https://docs.xdc.network/xdcchain/xdpos/>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 13](<https://xdc.org/articles/xdc-2.0-an-overview-of-the-major-consensus-upgrade>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 14](<https://www.xdc.dev/gary/securing-xdc-with-post-quantum-signatures-2j86>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 15](<https://www.xdc.dev/omkar_mestry_737f5f43d6e1/security-update-kyckyb-document-accessibility-incident-fully-resolved-1lb3>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 16](<https://www.xdc.dev/sina/analysis-of-upstream-security-advisories-12m0>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 17](<https://www.xdc.dev/walterblueu/xdc-network-issue-reporting-process-jm8>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 18](<https://github.com/XinFinOrg/XDPoSChain/tree/poc_falcon>): Public source cited by the XDC Network QRI assessment.
- [Evidence source 19](<https://github.com/XDCInnovationLabs>): Public source cited by the XDC Network QRI assessment.